these 4 derivations will be built:
  /nix/store/i8kh6b347jmkykpsh4hli6vzi4xlpm63-iets-fuzz-diff-0.0.0.drv
  /nix/store/jpyp1m0mp8b6xglwd36x32g0jzsyhi72-iets-0.1.0.drv
  /nix/store/qlp6311gays5ijgfvrlrqj7q7iq7yh35-iets-conformance-adapter.drv
  /nix/store/x29ywgwqlrd1g8n076rmfvykjg7c8pf4-nix-conformance-iets.drv