this derivation will be built:
  /nix/store/7grpj0rdk6sz2aw424n63w0jnyay8x5b-iets-fmt-0.1.0.drv
building '/nix/store/7grpj0rdk6sz2aw424n63w0jnyay8x5b-iets-fmt-0.1.0.drv'
iets-fmt-0.1.0> cargoVendorDir not set, will not automatically configure vendored sources
iets-fmt-0.1.0> cargoArtifacts not set, will not reuse any cargo artifacts
iets-fmt-0.1.0> Running phase: unpackPhase
iets-fmt-0.1.0> unpacking source archive /nix/store/rcq0ghxrcs3qq83k2xqrbgalgq8qcksg-source
iets-fmt-0.1.0> source root is source
iets-fmt-0.1.0> Running phase: patchPhase
iets-fmt-0.1.0> Executing configureCargoCommonVars
iets-fmt-0.1.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fmt-0.1.0> Running phase: configurePhase
iets-fmt-0.1.0> default configurePhase, nothing to do
iets-fmt-0.1.0> Running phase: buildPhase
iets-fmt-0.1.0> +++ command cargo --version
iets-fmt-0.1.0> cargo 1.98.0 (797e8a9bc 2026-08-05)
iets-fmt-0.1.0> +++ command cargo fmt -- --check