these 3 derivations will be built:
  /nix/store/0g6gg1f2vidyswjb1jc4dsd4wqidxgah-iets-fuzzers-0.0.0.drv
  /nix/store/hjnibp5vnawyvkdjzbwglqlaz919n3bk-iets-fuzz-diff-0.0.0.drv
  /nix/store/91q69q2gj2l0w1sw64r1cgjhs3dvi6cn-iets-fuzz-drv-eval-check.drv