these 3 derivations will be built:
  /nix/store/2mgfipf8n9y0hm7dmq52bxb2wiw4fz1z-iets-fuzzers-0.0.0.drv
  /nix/store/f2zzjmkgm3afn7z730i4ggbh7galvyq7-iets-fuzz-diff-0.0.0.drv
  /nix/store/z7vfmjhzpbxj4xa387kavwii2mdb2kqp-iets-fuzz-drv-check.drv