these 3 derivations will be built:
  /nix/store/96qz44ak0jrq8833f43hcbxcr5gqyypv-iets-fuzz-diff-0.0.0.drv
  /nix/store/zshz8f1f3cl9d10wmmn1dx9mi4y2g1r9-iets-fuzzers-0.0.0.drv
  /nix/store/b8hagin4ygys1xrv3809qh6q42dfr387-iets-fuzz-drv-check.drv
building '/nix/store/zshz8f1f3cl9d10wmmn1dx9mi4y2g1r9-iets-fuzzers-0.0.0.drv'
building '/nix/store/96qz44ak0jrq8833f43hcbxcr5gqyypv-iets-fuzz-diff-0.0.0.drv'
iets-fuzzers-0.0.0> Running phase: unpackPhase
iets-fuzzers-0.0.0> unpacking source archive /nix/store/fwzcp5gljy8sawci3ncwllnxh554xcsk-source
iets-fuzzers-0.0.0> source root is source
iets-fuzzers-0.0.0> Executing cargoSetupPostUnpackHook
iets-fuzz-diff-0.0.0> Running phase: unpackPhase
iets-fuzz-diff-0.0.0> unpacking source archive /nix/store/fwzcp5gljy8sawci3ncwllnxh554xcsk-source
iets-fuzz-diff-0.0.0> source root is source
iets-fuzz-diff-0.0.0> Running phase: patchPhase
iets-fuzz-diff-0.0.0> moving Cargo.lock to Cargo.lock.orig, then will use /nix/store/x5fb9rdfs3v03iygc1a65rdpqkn584p0-Cargo.lock as Cargo.lock
iets-fuzz-diff-0.0.0> Executing configureCargoCommonVars
iets-fuzz-diff-0.0.0> decompressing cargo artifacts from /nix/store/jp653nsbsqjqjqffwglcpcc17kd6cd4i-iets-fuzz-diff-deps-0.0.0/target.tar.zst to target
iets-fuzz-diff-0.0.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fuzz-diff-0.0.0> Running phase: configurePhase
iets-fuzz-diff-0.0.0> will append /build/source/fuzz/.cargo-home/config.toml with contents of /nix/store/7jbhj0f84ndxvh7d0b89s46m3j6l9y8y-vendor-cargo-deps/config.toml
iets-fuzz-diff-0.0.0> default configurePhase, nothing to do
iets-fuzz-diff-0.0.0> Running phase: buildPhase
iets-fuzz-diff-0.0.0> +++ command cargo --version
iets-fuzz-diff-0.0.0> cargo 1.98.0 (797e8a9bc 2026-08-05)
iets-fuzz-diff-0.0.0> +++ command cargo build --release --message-format json-render-diagnostics --locked --bin fuzz-diff --bin conformance-adapter
iets-fuzz-diff-0.0.0>    Compiling iets v0.1.0 (/build/source)