these 3 derivations will be built:
  /nix/store/l21233yg42larndpxlxzrcrhz0cz54jp-git-surgeon-0.1.17-vendor.drv
  /nix/store/b4mwzdkzp631gz0zinjhndcqcpz8m9fk-git-surgeon-0.1.17.drv
  /nix/store/x9f69r3qc2s8pfraw4lhfnmhym6b380h-check-git-surgeon.drv