these 3 derivations will be built:
  /nix/store/qqai0jv6dskm3cnhm2xqjy138rbdrd7y-source.drv
  /nix/store/14gy4qr6ix042n8gwgsbi4xzykx8f61v-hunk-0.23.0.drv
  /nix/store/jcq3scqfz7rrwh0dl9wcai22w4p9rpsy-check-hunk.drv