* installing *source* package 'RPostgres' ...
** using staged installation
** libs
using C compiler: 'gcc.exe (GCC) 13.2.0'
using C++ compiler: 'g++.exe (GCC) 13.2.0'
"D:/RCompile/recent/R/bin/x64/Rscript.exe" "../tools/winlibs.R"
[1] TRUE
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumn.cpp -o DbColumn.o
In file included from vendor/boost/mpl/aux_/na_assert.hpp:23,
                 from vendor/boost/mpl/arg.hpp:25,
                 from vendor/boost/mpl/placeholders.hpp:24,
                 from vendor/boost/iterator/iterator_categories.hpp:16,
                 from vendor/boost/iterator/iterator_concepts.hpp:10,
                 from vendor/boost/range/concepts.hpp:20,
                 from vendor/boost/range/size_type.hpp:20,
                 from vendor/boost/range/size.hpp:21,
                 from vendor/boost/range/functions.hpp:20,
                 from vendor/boost/ptr_container/detail/reversible_ptr_container.hpp:30,
                 from vendor/boost/ptr_container/ptr_sequence_adapter.hpp:20,
                 from vendor/boost/ptr_container/ptr_vector.hpp:20,
                 from DbColumn.h:9,
                 from DbColumn.cpp:2:
vendor/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of 'assert_arg' [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
vendor/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of 'assert_not_arg' [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumnDataSource.cpp -o DbColumnDataSource.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumnDataSourceFactory.cpp -o DbColumnDataSourceFactory.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumnStorage.cpp -o DbColumnStorage.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbConnection.cpp -o DbConnection.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbDataFrame.cpp -o DbDataFrame.o
In file included from vendor/boost/mpl/aux_/na_assert.hpp:23,
                 from vendor/boost/mpl/arg.hpp:25,
                 from vendor/boost/mpl/placeholders.hpp:24,
                 from vendor/boost/iterator/iterator_categories.hpp:16,
                 from vendor/boost/iterator/iterator_concepts.hpp:10,
                 from vendor/boost/range/concepts.hpp:20,
                 from vendor/boost/range/size_type.hpp:20,
                 from vendor/boost/range/size.hpp:21,
                 from vendor/boost/range/functions.hpp:20,
                 from vendor/boost/ptr_container/detail/reversible_ptr_container.hpp:30,
                 from vendor/boost/ptr_container/ptr_sequence_adapter.hpp:20,
                 from vendor/boost/ptr_container/ptr_vector.hpp:20,
                 from DbColumn.h:9,
                 from DbDataFrame.cpp:3:
vendor/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of 'assert_arg' [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
vendor/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of 'assert_not_arg' [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
In file included from vendor/boost/smart_ptr/detail/sp_thread_sleep.hpp:22,
                 from vendor/boost/smart_ptr/detail/yield_k.hpp:23,
                 from vendor/boost/smart_ptr/detail/spinlock_gcc_atomic.hpp:14,
                 from vendor/boost/smart_ptr/detail/spinlock.hpp:42,
                 from vendor/boost/smart_ptr/detail/spinlock_pool.hpp:25,
                 from vendor/boost/smart_ptr/shared_ptr.hpp:29,
                 from vendor/boost/shared_ptr.hpp:17,
                 from DbColumn.h:8:
vendor/boost/config/pragma_message.hpp:24:34: note: '#pragma message: The practice of declaring the Bind placeholders (_1, _2, ...) in the global namespace is deprecated. Please use <boost/bind/bind.hpp> + using namespace boost::placeholders, or define BOOST_BIND_GLOBAL_PLACEHOLDERS to retain the current behavior.'
   24 | # define BOOST_PRAGMA_MESSAGE(x) _Pragma(BOOST_STRINGIZE(message(x)))
      |                                  ^~~~~~~
vendor/boost/bind.hpp:36:1: note: in expansion of macro 'BOOST_PRAGMA_MESSAGE'
   36 | BOOST_PRAGMA_MESSAGE(
      | ^~~~~~~~~~~~~~~~~~~~
DbDataFrame.cpp: In member function 'cpp11::list DbDataFrame::get_data(std::vector<DATA_TYPE>&)':
DbDataFrame.cpp:58:21: warning: comparison of integer expressions of different signedness: 'int' and 'boost::container::stable_vector<DbColumn>::size_type' {aka 'long long unsigned int'} [-Wsign-compare]
   58 |   for (int i = 0; i < data.size(); i++) {
      |                   ~~^~~~~~~~~~~~~
In file included from vendor/boost/concept/assert.hpp:35,
                 from vendor/boost/concept_check.hpp:20,
                 from vendor/boost/range/concepts.hpp:19:
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
In file included from vendor/boost/concept_check.hpp:31:
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >]':
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>)>'
vendor/boost/iterator/iterator_concepts.hpp:114:7:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]':
vendor/boost/iterator/iterator_concepts.hpp:114:7:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::incrementable_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >]':
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>)>'
vendor/boost/range/concepts.hpp:152:13:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]':
vendor/boost/range/concepts.hpp:152:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::single_pass_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/range/concepts.hpp:278:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/range/concepts.hpp:281:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >]':
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]':
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = boost::container::stable_vector<DbColumn>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/range/concepts.hpp:278:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/range/concepts.hpp:281:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]':
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = std::vector<std::__cxx11::basic_string<char> >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >]'
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::incrementable_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >]'
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::single_pass_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >]'
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = boost::container::stable_vector<DbColumn>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = std::vector<std::__cxx11::basic_string<char> >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbResult.cpp -o DbResult.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqColumnDataSource.cpp -o PqColumnDataSource.o
In file included from vendor/boost/mpl/aux_/na_assert.hpp:23,
                 from vendor/boost/mpl/arg.hpp:25,
                 from vendor/boost/mpl/placeholders.hpp:24,
                 from vendor/boost/iterator/iterator_categories.hpp:16,
                 from vendor/boost/iterator/iterator_facade.hpp:13,
                 from vendor/boost/range/iterator_range_core.hpp:27,
                 from vendor/boost/lexical_cast.hpp:30,
                 from PqColumnDataSource.cpp:2:
vendor/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of 'assert_arg' [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
vendor/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of 'assert_not_arg' [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqColumnDataSourceFactory.cpp -o PqColumnDataSourceFactory.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqDataFrame.cpp -o PqDataFrame.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqResult.cpp -o PqResult.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqResultImpl.cpp -o PqResultImpl.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqResultSource.cpp -o PqResultSource.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqUtils.cpp -o PqUtils.o
gcc  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -Wstrict-prototypes -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c RPostgres-init.c -o RPostgres-init.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c connection.cpp -o connection.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c cpp11.cpp -o cpp11.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c encode.cpp -o encode.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c encrypt.cpp -o encrypt.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c logging.cpp -o logging.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c result.cpp -o result.o
g++ -std=gnu++17 -shared -s -static-libgcc -o RPostgres.dll tmp.def DbColumn.o DbColumnDataSource.o DbColumnDataSourceFactory.o DbColumnStorage.o DbConnection.o DbDataFrame.o DbResult.o PqColumnDataSource.o PqColumnDataSourceFactory.o PqDataFrame.o PqResult.o PqResultImpl.o PqResultSource.o PqUtils.o RPostgres-init.o connection.o cpp11.o encode.o encrypt.o logging.o result.o -L../windows/libpq/lib/x64 -L../windows/libpq/lib -lpq -lpgport -lpgcommon -lssl -lcrypto -lwsock32 -lsecur32 -lws2_32 -lgdi32 -lcrypt32 -lwldap32 -Ld:/rtools44/x86_64-w64-mingw32.static.posix/lib/x64 -Ld:/rtools44/x86_64-w64-mingw32.static.posix/lib -LD:/RCompile/recent/R/bin/x64 -lR
"D:/RCompile/recent/R/bin/x64/Rscript.exe" "../tools/winlibs.R"
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumn.cpp -o DbColumn.o
In file included from vendor/boost/mpl/aux_/na_assert.hpp:23,
                 from vendor/boost/mpl/arg.hpp:25,
                 from vendor/boost/mpl/placeholders.hpp:24,
                 from vendor/boost/iterator/iterator_categories.hpp:16,
                 from vendor/boost/iterator/iterator_concepts.hpp:10,
                 from vendor/boost/range/concepts.hpp:20,
                 from vendor/boost/range/size_type.hpp:20,
                 from vendor/boost/range/size.hpp:21,
                 from vendor/boost/range/functions.hpp:20,
                 from vendor/boost/ptr_container/detail/reversible_ptr_container.hpp:30,
                 from vendor/boost/ptr_container/ptr_sequence_adapter.hpp:20,
                 from vendor/boost/ptr_container/ptr_vector.hpp:20,
                 from DbColumn.h:9,
                 from DbColumn.cpp:2:
vendor/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of 'assert_arg' [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
vendor/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of 'assert_not_arg' [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumnDataSource.cpp -o DbColumnDataSource.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumnDataSourceFactory.cpp -o DbColumnDataSourceFactory.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbColumnStorage.cpp -o DbColumnStorage.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbConnection.cpp -o DbConnection.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbDataFrame.cpp -o DbDataFrame.o
In file included from vendor/boost/mpl/aux_/na_assert.hpp:23,
                 from vendor/boost/mpl/arg.hpp:25,
                 from vendor/boost/mpl/placeholders.hpp:24,
                 from vendor/boost/iterator/iterator_categories.hpp:16,
                 from vendor/boost/iterator/iterator_concepts.hpp:10,
                 from vendor/boost/range/concepts.hpp:20,
                 from vendor/boost/range/size_type.hpp:20,
                 from vendor/boost/range/size.hpp:21,
                 from vendor/boost/range/functions.hpp:20,
                 from vendor/boost/ptr_container/detail/reversible_ptr_container.hpp:30,
                 from vendor/boost/ptr_container/ptr_sequence_adapter.hpp:20,
                 from vendor/boost/ptr_container/ptr_vector.hpp:20,
                 from DbColumn.h:9,
                 from DbDataFrame.cpp:3:
vendor/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of 'assert_arg' [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
vendor/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of 'assert_not_arg' [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
In file included from vendor/boost/smart_ptr/detail/sp_thread_sleep.hpp:22,
                 from vendor/boost/smart_ptr/detail/yield_k.hpp:23,
                 from vendor/boost/smart_ptr/detail/spinlock_gcc_atomic.hpp:14,
                 from vendor/boost/smart_ptr/detail/spinlock.hpp:42,
                 from vendor/boost/smart_ptr/detail/spinlock_pool.hpp:25,
                 from vendor/boost/smart_ptr/shared_ptr.hpp:29,
                 from vendor/boost/shared_ptr.hpp:17,
                 from DbColumn.h:8:
vendor/boost/config/pragma_message.hpp:24:34: note: '#pragma message: The practice of declaring the Bind placeholders (_1, _2, ...) in the global namespace is deprecated. Please use <boost/bind/bind.hpp> + using namespace boost::placeholders, or define BOOST_BIND_GLOBAL_PLACEHOLDERS to retain the current behavior.'
   24 | # define BOOST_PRAGMA_MESSAGE(x) _Pragma(BOOST_STRINGIZE(message(x)))
      |                                  ^~~~~~~
vendor/boost/bind.hpp:36:1: note: in expansion of macro 'BOOST_PRAGMA_MESSAGE'
   36 | BOOST_PRAGMA_MESSAGE(
      | ^~~~~~~~~~~~~~~~~~~~
DbDataFrame.cpp: In member function 'cpp11::list DbDataFrame::get_data(std::vector<DATA_TYPE>&)':
DbDataFrame.cpp:58:21: warning: comparison of integer expressions of different signedness: 'int' and 'boost::container::stable_vector<DbColumn>::size_type' {aka 'long long unsigned int'} [-Wsign-compare]
   58 |   for (int i = 0; i < data.size(); i++) {
      |                   ~~^~~~~~~~~~~~~
In file included from vendor/boost/concept/assert.hpp:35,
                 from vendor/boost/concept_check.hpp:20,
                 from vendor/boost/range/concepts.hpp:19:
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
In file included from vendor/boost/concept_check.hpp:31:
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >]':
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>)>'
vendor/boost/iterator/iterator_concepts.hpp:114:7:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]':
vendor/boost/iterator/iterator_concepts.hpp:114:7:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::incrementable_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >]':
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>)>'
vendor/boost/range/concepts.hpp:152:13:   [ skipping 6 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]':
vendor/boost/range/concepts.hpp:152:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::single_pass_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/range/concepts.hpp:278:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/range/concepts.hpp:281:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >]':
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]':
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = boost::container::stable_vector<DbColumn>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/range/concepts.hpp:278:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]':
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/range/concepts.hpp:281:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:20:5: note: in a call to non-static member function 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |     ^
vendor/boost/concept/detail/general.hpp: In instantiation of 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]':
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/detail/general.hpp:50:47: warning: 'this' pointer is null [-Wnonnull]
   50 |     static void failed() { ((Model*)0)->~Model(); }
      |                            ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = std::vector<std::__cxx11::basic_string<char> >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >]'
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::incrementable_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 8 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::incrementable_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >]'
vendor/boost/concept_check.hpp:208:5:   required from 'struct boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag>]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::Convertible<boost::iterators::random_access_traversal_tag, boost::iterators::single_pass_traversal_tag> >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 7 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::Convertible<X, Y>::~Convertible() [with X = boost::iterators::random_access_traversal_tag; Y = boost::iterators::single_pass_traversal_tag]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:208:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  208 |     BOOST_CONCEPT_USAGE(Convertible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, false> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, false>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<boost::container::stable_vector_iterator<DbColumn*, true> > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = boost::container::stable_vector_iterator<DbColumn*, true>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >]'
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<boost::container::stable_vector<DbColumn> >)>'
vendor/boost/range/size.hpp:62:9:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = boost::container::stable_vector<DbColumn>]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:167:5:   required from 'struct boost::CopyConstructible<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:125:16:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   [ skipping 4 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::CopyConstructible<TT>::~CopyConstructible() [with TT = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:167:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  167 |     BOOST_CONCEPT_USAGE(CopyConstructible) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:136:13:   required from 'struct boost::range_detail::IncrementableIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::IncrementableIteratorConcept<Iterator>::~IncrementableIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:136:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  136 |             BOOST_CONCEPT_USAGE(IncrementableIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/concept_check.hpp:233:5:   required from 'struct boost::EqualityComparable<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/range/concepts.hpp:147:16:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   [ skipping 3 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::EqualityComparable<TT>::~EqualityComparable() [with TT = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/concept_check.hpp:233:5: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  233 |     BOOST_CONCEPT_USAGE(EqualityComparable) {
      |     ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >]'
vendor/boost/range/concepts.hpp:158:13:   required from 'struct boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::range_detail::SinglePassIteratorConcept<__gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > > > >'
vendor/boost/concept/detail/general.hpp:72:8:   [ skipping 2 instantiation contexts, use -ftemplate-backtrace-limit=0 to disable ]
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::range_detail::SinglePassIteratorConcept<Iterator>::~SinglePassIteratorConcept() [with Iterator = __gnu_cxx::__normal_iterator<const std::__cxx11::basic_string<char>*, std::vector<std::__cxx11::basic_string<char> > >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:158:13: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  158 |             BOOST_CONCEPT_USAGE(SinglePassIteratorConcept)
      |             ^~~~~~~~~~~~~~~~~~~
vendor/boost/concept/usage.hpp: In instantiation of 'boost::concepts::usage_requirements<Model>::~usage_requirements() [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]':
vendor/boost/concept/detail/general.hpp:50:47:   required from 'static void boost::concepts::requirement<boost::concepts::failed************ Model::************>::failed() [with Model = boost::concepts::usage_requirements<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >]'
vendor/boost/range/concepts.hpp:284:9:   required from 'struct boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >'
vendor/boost/concept/detail/has_constraints.hpp:32:62:   required by substitution of 'template<class Model> boost::concepts::detail::yes boost::concepts::detail::has_constraints_(Model*, wrap_constraints<Model, (& Model::constraints)>*) [with Model = boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >]'
vendor/boost/concept/detail/has_constraints.hpp:42:5:   required from 'const bool boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >::value'
vendor/boost/concept/detail/has_constraints.hpp:45:51:   required from 'struct boost::concepts::not_satisfied<boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > > >'
vendor/boost/concept/detail/general.hpp:72:8:   required from 'struct boost::concepts::requirement_<void (*)(boost::SinglePassRangeConcept<std::vector<std::__cxx11::basic_string<char> > >)>'
vendor/boost/range/algorithm_ext/for_each.hpp:54:13:   required from 'Fn2 boost::range::for_each(SinglePassRange1&, SinglePassRange2&, Fn2) [with SinglePassRange1 = boost::container::stable_vector<DbColumn>; SinglePassRange2 = std::vector<std::__cxx11::basic_string<char> >; Fn2 = boost::_bi::bind_t<void, boost::_mfi::cmf1<void, DbColumn, const cpp11::r_string&>, boost::_bi::list2<boost::arg<1>, boost::arg<2> > >]'
DbDataFrame.cpp:54:18:   required from here
vendor/boost/concept/usage.hpp:20:48: warning: 'this' pointer is null [-Wnonnull]
   20 |     ~usage_requirements() { ((Model*)0)->~Model(); }
      |                             ~~~~~~~~~~~~~~~~~~~^~
vendor/boost/concept/usage.hpp:37:7: note: in a call to non-static member function 'boost::SinglePassRangeConcept<T>::~SinglePassRangeConcept() [with T = std::vector<std::__cxx11::basic_string<char> >]'
   37 |       ~model()
      |       ^
vendor/boost/range/concepts.hpp:284:9: note: in expansion of macro 'BOOST_CONCEPT_USAGE'
  284 |         BOOST_CONCEPT_USAGE(SinglePassRangeConcept)
      |         ^~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c DbResult.cpp -o DbResult.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqColumnDataSource.cpp -o PqColumnDataSource.o
In file included from vendor/boost/mpl/aux_/na_assert.hpp:23,
                 from vendor/boost/mpl/arg.hpp:25,
                 from vendor/boost/mpl/placeholders.hpp:24,
                 from vendor/boost/iterator/iterator_categories.hpp:16,
                 from vendor/boost/iterator/iterator_facade.hpp:13,
                 from vendor/boost/range/iterator_range_core.hpp:27,
                 from vendor/boost/lexical_cast.hpp:30,
                 from PqColumnDataSource.cpp:2:
vendor/boost/mpl/assert.hpp:194:21: warning: unnecessary parentheses in declaration of 'assert_arg' [-Wparentheses]
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:194:21: note: remove parentheses
  194 | failed ************ (Pred::************
      |                     ^~~~~~~~~~~~~~~~~~~
      |                     -
  195 |       assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  196 |     );
      |     ~                
      |     -
vendor/boost/mpl/assert.hpp:199:21: warning: unnecessary parentheses in declaration of 'assert_not_arg' [-Wparentheses]
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
vendor/boost/mpl/assert.hpp:199:21: note: remove parentheses
  199 | failed ************ (boost::mpl::not_<Pred>::************
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                     -
  200 |       assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type )
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  201 |     );
      |     ~                
      |     -
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqColumnDataSourceFactory.cpp -o PqColumnDataSourceFactory.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqDataFrame.cpp -o PqDataFrame.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqResult.cpp -o PqResult.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqResultImpl.cpp -o PqResultImpl.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqResultSource.cpp -o PqResultSource.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c PqUtils.cpp -o PqUtils.o
gcc  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -Wstrict-prototypes -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c RPostgres-init.c -o RPostgres-init.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c connection.cpp -o connection.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c cpp11.cpp -o cpp11.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c encode.cpp -o encode.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c encrypt.cpp -o encrypt.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c logging.cpp -o logging.o
g++ -std=gnu++17  -I"D:/RCompile/recent/R/include" -DNDEBUG -I../windows/libpq/include -Ivendor -DRCPP_DEFAULT_INCLUDE_CALL=false -DRCPP_USING_UTF8_ERROR_STRING -DBOOST_NO_AUTO_PTR -I'D:/RCompile/CRANpkg/lib/4.5/cpp11/include' -I'D:/RCompile/CRANpkg/lib/4.5/plogr/include'   -I"d:/rtools44/x86_64-w64-mingw32.static.posix/include"     -pedantic -O2 -Wall  -mfpmath=sse -msse2 -mstackrealign  -c result.cpp -o result.o
installing to d:/RCompile/CRANincoming/R-devel/lib/00LOCK-RPostgres/00new/RPostgres/libs/x64
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (RPostgres)