these 4 derivations will be built:
  /nix/store/57c31rbxla57av64v9ww6684wdprrc1l-iets-fuzz-diff-0.0.0.drv
  /nix/store/kgyz84xlvvzc8cgg2flhrgvggkl7jqsv-iets-0.1.0.drv
  /nix/store/9hkzswlsqwmwqrbijl2ydffd8w3qpf7d-iets-conformance-adapter.drv
  /nix/store/z6kmzdf6cy3iywlncz25g10kryarbr6i-nix-conformance-iets.drv