bld1: building br1kwb1jw1kz1my09hhdxp1gsx0ib670-iets-fmt-0.2.0.drv
cargoVendorDir not set, will not automatically configure vendored sources
cargoArtifacts not set, will not reuse any cargo artifacts
Running phase: unpackPhase
unpacking source archive /nix/store/6jw0biw6kc2375scibryfd42ap5w5zas-source
source root is source
Running phase: patchPhase
Executing configureCargoCommonVars
Running phase: updateAutotoolsGnuConfigScriptsPhase
Running phase: configurePhase
default configurePhase, nothing to do
Running phase: buildPhase
+++ command cargo --version
cargo 1.99.0 (5f94df478 2026-08-27)
+++ command cargo fmt -- --check
Running phase: ensureTargetDir
Running phase: installPhase
no previous artifacts found, compressing and installing full archive of target to /nix/store/xp0152mj9vrz0k7jl5ldaa1bxlak42r8-iets-fmt-0.2.0/target.tar.zst
/*stdin*\            :  0.72%   (  10.0 KiB =>     74 B, /nix/store/xp0152mj9vrz0k7jl5ldaa1bxlak42r8-iets-fmt-0.2.0/target.tar.zst) 
Running phase: fixupPhase
shrinking RPATHs of ELF executables and libraries in /nix/store/xp0152mj9vrz0k7jl5ldaa1bxlak42r8-iets-fmt-0.2.0
checking for references to /build/ in /nix/store/xp0152mj9vrz0k7jl5ldaa1bxlak42r8-iets-fmt-0.2.0...
patching script interpreter paths in /nix/store/xp0152mj9vrz0k7jl5ldaa1bxlak42r8-iets-fmt-0.2.0