these 2 derivations will be built:
  /nix/store/hhqws1gixhbg9cqr8lh1prlp5lzk473g-gitclaw-2.2.0.drv
  /nix/store/hswf2nd3gz2xwdi4swdmkd8hda1p8a89-check-gitclaw.drv