* using log directory ‘/home/hornik/tmp/CRAN_special_clang-san/almanac.Rcheck’ * using R Under development (unstable) (2026-10-25 r90763) * using platform: x86_64-pc-linux-gnu * R was compiled by Debian clang version 23.1.0 (2) Debian flang version 23.1.0 (2) * running under: Debian GNU/Linux forky/sid * using session charset: UTF-8 * current time: 2026-10-26 13:47:02 UTC * checking for file ‘almanac/DESCRIPTION’ ... OK * this is package ‘almanac’ version ‘1.0.1’ * package encoding: UTF-8 * checking package namespace information ... OK * checking package dependencies ... OK * checking if this is a source package ... OK * checking if there is a namespace ... OK * checking for executable files ... OK * checking for hidden files and directories ... OK * checking for portable file names ... OK * checking for sufficient/correct file permissions ... OK * checking whether package ‘almanac’ can be installed ... [21s/21s] OK * used C++ compiler: ‘Debian clang version 23.1.3 (1)’ * checking package directory ... OK * checking for future file timestamps ... OK * checking ‘build’ directory ... OK * checking DESCRIPTION meta-information ... OK * checking top-level files ... OK * checking for left-over files ... OK * checking index information ... OK * checking package subdirectories ... OK * checking code files for non-ASCII characters ... OK * checking R files for syntax errors ... OK * checking whether the package can be loaded ... [2s/2s] OK * checking whether the package can be loaded with stated dependencies ... [1s/1s] OK * checking whether the package can be unloaded cleanly ... [1s/1s] OK * checking whether the namespace can be loaded with stated dependencies ... [1s/1s] OK * checking whether the namespace can be unloaded cleanly ... [1s/1s] OK * checking loading without being on the library search path ... [2s/2s] OK * checking whether startup messages can be suppressed ... [2s/2s] OK * checking use of S3 registration ... OK * checking dependencies in R code ... OK * checking S3 generic/method consistency ... OK * checking replacement functions ... OK * checking foreign function calls ... OK * checking R code for possible problems ... [27s/27s] OK * checking Rd files ... [1s/1s] OK * checking Rd metadata ... OK * checking Rd line widths ... OK * checking Rd cross-references ... OK * checking for missing documentation entries ... OK * checking for code/documentation mismatches ... OK * checking Rd \usage sections ... OK * checking Rd contents ... OK * checking for unstated dependencies in examples ... OK * checking line endings in C/C++/Fortran sources/headers ... OK * checking pragmas in C/C++ headers and code ... OK * checking compilation flags used ... OK * checking compiled code ... OK * checking installed files from ‘inst/doc’ ... OK * checking files in ‘vignettes’ ... OK * checking examples ... [2s/2s] ERROR Running examples in ‘almanac-Ex.R’ failed The error most likely occurred in: > base::assign(".ptime", proc.time(), pos = "CheckExEnv") > ### Name: adjustments > ### Title: Date adjustments > ### Aliases: adjustments adj_following adj_preceding adj_modified_following > ### adj_modified_preceding adj_nearest adj_none > > ### ** Examples > > # A Saturday > x <- as.Date("1970-01-03") > > on_weekends <- weekly() %>% recur_on_weekends() > > # Adjust forward to Monday > adj_following(x, on_weekends) # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7ffe85083370 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x55f08901daea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7b52a8dbbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7b52a7d96dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7b52a8da881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7b52a819544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7b52a815e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf31c89) [0x7b52a8131c89] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x14b5088) [0x7b52a86b5088] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa439b6) [0x7b52a7c439b6] Trace/breakpoint trap * checking for unstated dependencies in ‘tests’ ... OK * checking tests ... [3s/3s] ERROR Running ‘testthat.R’ [2s/2s] Running the tests in ‘tests/testthat.R’ failed. Complete output: > # This file is part of the standard setup for testthat. > # It is recommended that you do not modify it. > # > # Where should you do additional test configuration? > # Learn more about the roles of various files in: > # * https://r-pkgs.org/tests.html > # * https://testthat.r-lib.org/reference/test_package.html#special-files > > library(testthat) > library(almanac) > > test_check("almanac") # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7fffa595cbd0 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x5587e4772aea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7b62b97bbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7b62b8796dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7b62b97a881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7b62b8b9544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7b62b8b5e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf316ab) [0x7b62b8b316ab] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf41e7c) [0x7b62b8b41e7c] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x1279837) [0x7b62b8e79837] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xd2367c) [0x7b62b892367c] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa438f6) [0x7b62b86438f6] Trace/breakpoint trap * checking for unstated dependencies in vignettes ... OK * checking package vignettes ... OK * checking re-building of vignette outputs ... [15s/15s] ERROR Error(s) in re-building vignettes: ... --- re-building ‘adjust-and-shift.Rmd’ using rmarkdown # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7ffc1d480160 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x55ca8368daea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7b4590fbbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7b458ff96dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7b4590fa881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7b459039544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7b459035e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf31c89) [0x7b4590331c89] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x14b5088) [0x7b45908b5088] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa439b6) [0x7b458fe439b6] Trace/breakpoint trap --- re-building ‘almanac.Rmd’ using rmarkdown # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7ffe6f036960 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x55e36570daea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7bcd8bbbbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7bcd8ab96dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7bcd8bba881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7bcd8af9544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7bcd8af5e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf31c89) [0x7bcd8af31c89] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x14b5088) [0x7bcd8b4b5088] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa439b6) [0x7bcd8aa439b6] Trace/breakpoint trap --- re-building ‘holidays-calendars.Rmd’ using rmarkdown # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7ffdb8f0dfa0 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x561e9d377aea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7b69f85bbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7b69f7596dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7b69f85a881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7b69f799544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7b69f795e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf31c89) [0x7b69f7931c89] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x14b5088) [0x7b69f7eb5088] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa439b6) [0x7b69f74439b6] Trace/breakpoint trap --- re-building ‘icalendar.Rmd’ using rmarkdown # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7ffde29e0a20 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x56474ca61aea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7b27757bbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7b2774796dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7b27757a881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7b2774b9544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7b2774b5e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf31c89) [0x7b2774b31c89] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x14b5088) [0x7b27750b5088] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa439b6) [0x7b27746439b6] Trace/breakpoint trap --- re-building ‘quarterly.Rmd’ using rmarkdown # # Fatal error in , line 0 # Check failed: isolate_->IsOnCentralStack(). # # # #FailureMessage Object: 0x7ffcf9d24d40 ==== C stack trace =============================== /home/hornik/tmp/R-d-clang-xtra/bin/exec/R(___interceptor_backtrace+0x4a) [0x56117f41faea] /usr/lib/x86_64-linux-gnu/libnode.so.137(v8::base::debug::StackTrace::StackTrace()+0x16) [0x7b6e7b9bbe66] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xb96dc7) [0x7b6e7a996dc7] /usr/lib/x86_64-linux-gnu/libnode.so.137(V8_Fatal(char const*, ...)+0x18b) [0x7b6e7b9a881b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf9544b) [0x7b6e7ad9544b] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf5e731) [0x7b6e7ad5e731] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xf31c89) [0x7b6e7ad31c89] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0x14b5088) [0x7b6e7b2b5088] /usr/lib/x86_64-linux-gnu/libnode.so.137(+0xa439b6) [0x7b6e7a8439b6] Trace/breakpoint trap SUMMARY: processing the following files failed: ‘adjust-and-shift.Rmd’ ‘almanac.Rmd’ ‘holidays-calendars.Rmd’ ‘icalendar.Rmd’ ‘quarterly.Rmd’ Error: Vignette re-building failed. Execution halted * checking PDF version of manual ... [4s/4s] OK * checking HTML version of manual ... [3s/3s] OK * checking for non-standard things in the check directory ... OK * checking for detritus in the temp directory ... OK * DONE Status: 3 ERRORs