these 4 derivations will be built:
  /nix/store/pp0dpn0jnl0r10nawpjqnnfq5n6dad3i-iets-fuzz-diff-0.0.0.drv
  /nix/store/v565dz9cxsg78m08fbcqj18h2p1iyvww-iets-0.1.0.drv
  /nix/store/4bi6vvdh7harwkn562miai81xx92bkmr-iets-conformance-adapter.drv
  /nix/store/mpwhi88rv1z5f7g1fvqajzpm76vipp1c-nix-conformance-iets.drv