these 4 derivations will be built:
  /nix/store/2lbk9876pcvwj5l191j2gag67ifbz8wc-iets-0.1.0.drv
  /nix/store/wss7rkx3p8asj5n8ganrhlxwzchbcyc4-iets-fuzz-diff-0.0.0.drv
  /nix/store/a1a5cn70npy88805hg50ky37s9hpzg4y-iets-conformance-adapter.drv
  /nix/store/dczh4mw4301y9vw4an1wrhrbbxlkmkdc-nix-conformance-iets.drv