these 3 derivations will be built:
  /nix/store/7dwmazc5yl2imrsp9ypdqzqxy0nnr5fl-iets-fuzz-diff-0.0.0.drv
  /nix/store/gvblyz6bdpid5jyv6avi0z43d377r1qv-iets-fuzzers-0.0.0.drv
  /nix/store/qyf31p3ch0hivnh5vapvlgmxad6lfs46-iets-fuzz-drv-eval-check.drv