these 4 derivations will be built:
  /nix/store/1m0vidkikvfacdmy9p7m27min02axija-iets-0.1.0.drv
  /nix/store/px4df9lj3nj11mvqs7xh47sqfyfwmmmj-iets-fuzz-diff-0.0.0.drv
  /nix/store/ljgikdb8l4jqbds8xyyj0naxg438kdkd-iets-conformance-adapter.drv
  /nix/store/s9xcmlk0mnjdh42mw88hd1pp83j41ikm-nix-conformance-iets.drv