these 3 derivations will be built:
  /nix/store/2bzxg0c4x12ax8z941i5193b374r2nha-source.drv
  /nix/store/j7lshm4gvd62q9qpxck4961nm8fn0iqp-gno-2.5.1.drv
  /nix/store/6qsj392zrsabsap7v4v7gzr17r6fi9rj-check-gno.drv