1this derivation will be built:2 /nix/store/7grpj0rdk6sz2aw424n63w0jnyay8x5b-iets-fmt-0.1.0.drv3building '/nix/store/7grpj0rdk6sz2aw424n63w0jnyay8x5b-iets-fmt-0.1.0.drv'4iets-fmt-0.1.0> cargoVendorDir not set, will not automatically configure vendored sources5iets-fmt-0.1.0> cargoArtifacts not set, will not reuse any cargo artifacts6iets-fmt-0.1.0> Running phase: unpackPhase7iets-fmt-0.1.0> unpacking source archive /nix/store/rcq0ghxrcs3qq83k2xqrbgalgq8qcksg-source8iets-fmt-0.1.0> source root is source9iets-fmt-0.1.0> Running phase: patchPhase10iets-fmt-0.1.0> Executing configureCargoCommonVars11iets-fmt-0.1.0> Running phase: updateAutotoolsGnuConfigScriptsPhase12iets-fmt-0.1.0> Running phase: configurePhase13iets-fmt-0.1.0> default configurePhase, nothing to do14iets-fmt-0.1.0> Running phase: buildPhase15iets-fmt-0.1.0> +++ command cargo --version16iets-fmt-0.1.0> cargo 1.98.0 (797e8a9bc 2026-08-05)17iets-fmt-0.1.0> +++ command cargo fmt -- --check