these 2 derivations will be built:
  /nix/store/3nr6r7bk8hjbgcpa6hs7ydamsdsa7aq1-mcptoon-0.8.39.drv
  /nix/store/bsc9s3m46hrg0kkrah8c0l1j2njvb7ms-check-mcptoon.drv