these 2 derivations will be built:
  /nix/store/61qqv6qyk9zlv1wabciv3hdkqh7srz5j-iets-fuzzers-0.0.0.drv
  /nix/store/749ma34zy1sghayfaijcwc8rcgz5w7vv-iets-fuzz-parse-check.drv