* installing *source* package 'fastlowess' ...
** this is package 'fastlowess' version '0.2.0'
** using staged installation

   **********************************************
   WARNING: this package has a configure script
         It probably needs manual configuration
   **********************************************


** libs
using C compiler: 'gcc.exe (GCC) 14.3.0'
rm -Rf fastlowess.dll ../target/x86_64-pc-windows-gnu/release/libfastlowess.a dummy.o
gcc  -I"D:/RCompile/recent/R/include" -DNDEBUG     -I"d:/rtools45/x86_64-w64-mingw32.static.posix/include"      -pedantic -Wstrict-prototypes -O2 -Wall -std=gnu2x  -mfpmath=sse -msse2 -mstackrealign   -c dummy.c -o dummy.o
Reporting Rust compiler versions:
cargo 1.81.0 (2dbb1af80 2024-08-20)
rustc 1.81.0 (eeb90cda1 2024-09-04)
cargo build --release --manifest-path=Cargo.toml --target-dir ../target --target x86_64-pc-windows-gnu --config cargo/config.toml
error: failed to parse manifest at `d:\temp\2025_12_22_01_45_16_18842\RtmpGAZSUp\R.INSTALL1055857dc48\fastlowess\src\Cargo.toml`

Caused by:
  feature `edition2024` is required

  The package requires the Cargo feature called `edition2024`, but that feature is not stabilized in this version of Cargo (1.81.0 (2dbb1af80 2024-08-20)).
  Consider trying a newer version of Cargo (this may require the nightly release).
  See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#edition-2024 for more information about the status of this feature.
make: *** [Makevars.win:16: ../target/x86_64-pc-windows-gnu/release/libfastlowess.a] Error 101
ERROR: compilation failed for package 'fastlowess'
* removing 'd:/RCompile/CRANincoming/R-devel/lib/fastlowess'