this derivation will be built:
  /nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv
building '/nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv' on farm.numtide.com:50051
iets-fmt-0.2.0> elastic-arm-b31bc209: building 5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv
iets-fmt-0.2.0> cargoVendorDir not set, will not automatically configure vendored sources
iets-fmt-0.2.0> cargoArtifacts not set, will not reuse any cargo artifacts
iets-fmt-0.2.0> Running phase: unpackPhase
iets-fmt-0.2.0> unpacking source archive /nix/store/clhj6vlkhdblajvwv9vq3qd6hsap5cc2-source
iets-fmt-0.2.0> source root is source
iets-fmt-0.2.0> Running phase: patchPhase
iets-fmt-0.2.0> Executing configureCargoCommonVars
iets-fmt-0.2.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fmt-0.2.0> Running phase: configurePhase
iets-fmt-0.2.0> default configurePhase, nothing to do
iets-fmt-0.2.0> Running phase: buildPhase
iets-fmt-0.2.0> +++ command cargo --version
iets-fmt-0.2.0> cargo 1.99.0 (5f94df478 2026-08-27)
iets-fmt-0.2.0> +++ command cargo fmt -- --check
iets-fmt-0.2.0> Diff in /build/source/src/eval/mod.rs:402:
iets-fmt-0.2.0>          return Err($crate::eval::Error::boxed_fmt($kind, format_args!($($arg)*), $pos))
iets-fmt-0.2.0>      };
iets-fmt-0.2.0>  }
iets-fmt-0.2.0> -pub(crate) use bail;
iets-fmt-0.2.0>  use crate::sys;
iets-fmt-0.2.0> +pub(crate) use bail;
iets-fmt-0.2.0>  
iets-fmt-0.2.0>  /// Everything fixed before evaluation starts. A field set after `try_run` clones
iets-fmt-0.2.0>  /// the evaluator is one fiber's alone, so there is no setter (docs/explanation/evaluation.md).
error: build of '/nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token' failed: Cannot build '/nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nrxl5gfs8y0ygr664q4rmhmig56iqhyf-iets-fmt-0.2.0
       Last 24 log lines:
       > cargoVendorDir not set, will not automatically configure vendored sources
       > cargoArtifacts not set, will not reuse any cargo artifacts
       > Running phase: unpackPhase
       > unpacking source archive /nix/store/clhj6vlkhdblajvwv9vq3qd6hsap5cc2-source
       > source root is source
       > Running phase: patchPhase
       > Executing configureCargoCommonVars
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > default configurePhase, nothing to do
       > Running phase: buildPhase
       > +++ command cargo --version
       > cargo 1.99.0 (5f94df478 2026-08-27)
       > +++ command cargo fmt -- --check
       > Diff in /build/source/src/eval/mod.rs:402:
       >          return Err($crate::eval::Error::boxed_fmt($kind, format_args!($($arg)*), $pos))
       >      };
       >  }
       > -pub(crate) use bail;
       >  use crate::sys;
       > +pub(crate) use bail;
       > 
       >  /// Everything fixed before evaluation starts. A field set after `try_run` clones
       >  /// the evaluator is one fiber's alone, so there is no setter (docs/explanation/evaluation.md).
       For full logs, run:
         nix log /nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv
error: Cannot build '/nix/store/5h35nf9kywwip61cv2zvmhv3rjnspxcc-iets-fmt-0.2.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nrxl5gfs8y0ygr664q4rmhmig56iqhyf-iets-fmt-0.2.0