these 3 derivations will be built:
  /nix/store/i91xs5vvqv4jb35w4h6kkq3cz5gjaqbr-iets-fuzzers-0.0.0.drv
  /nix/store/nimyzrl82cjbw96myj0a0fd0jzr70qqr-iets-fuzz-diff-0.0.0.drv
  /nix/store/rkzvpkq94d6z42b1jy121pk2k9fgb0qq-iets-fuzz-drv-eval-check.drv