these 3 derivations will be built:
  /nix/store/h1x4kk8gq8dbr99svj6zbyc5wzsz0b45-iets-fuzz-diff-0.0.0.drv
  /nix/store/rdwz59kyphppfvv7p7arrzw0k1f7lgqp-iets-fuzzers-0.0.0.drv
  /nix/store/ybbvf86ak3cq2afqzfcqfv6jp8lhzjls-iets-fuzz-drv-check.drv