these 2 derivations will be built:
  /nix/store/di53adbbcgjskkq1qz642yqdzv4g4fzr-iets-fuzzers-0.0.0.drv
  /nix/store/xmkrnkav5l3c40m1fwbj800zfx9varvk-iets-fuzz-drv-check.drv