these 3 derivations will be built:
  /nix/store/5jhiqpjq3nwd202jav05lyx2h3ija87l-iets-fuzzers-0.0.0.drv
  /nix/store/h1br7s0h752i1rjf1y2zlwji3a41w2cp-iets-fuzz-diff-0.0.0.drv
  /nix/store/9qp821r22pi1kxcgsdpj3srliq4h6bx7-iets-fuzz-drv-eval-check.drv