these 4 derivations will be built:
  /nix/store/gpb9a784b44czccsxzji2z6adnaakimi-iets-fuzz-diff-0.0.0.drv
  /nix/store/sv9daikzr5v0c69l724iirnnxnrnhpmd-iets-0.1.0.drv
  /nix/store/a7d12k8l4gsjmjx0s33f50dibq9xr8dz-iets-conformance-adapter.drv
  /nix/store/0q177p572mkrkmr7hw42p5pvscq183dr-nix-conformance-iets.drv