these 4 derivations will be built:
  /nix/store/fy1wgm876rhf7nfhv7k0icjnzxl9s1a1-iets-fuzz-diff-0.0.0.drv
  /nix/store/hvfpybwkaxi8is9z7x23i9ls4hl2x5pw-iets-0.1.0.drv
  /nix/store/l839iv9kj6xshxhfy4gw7q36w2a9qjzy-iets-conformance-adapter.drv
  /nix/store/vmirblajlpmmngikv317fb5y38n4fijw-nix-conformance-iets.drv