these 4 derivations will be built:
  /nix/store/7sgkwrpqdi0v7qid9pixg5gx02y1jzb9-iets-0.1.0.drv
  /nix/store/gjkbxqjv0rdf84cl42p370p4z4gcx4ms-iets-fuzz-diff-0.0.0.drv
  /nix/store/n131hgzjwlm8n2nhn7wg8wb4sradlg12-iets-conformance-adapter.drv
  /nix/store/75iykp2m9794cd6qlvjfpbc7vaarqfsb-nix-conformance-iets.drv