these 3 derivations will be built:
  /nix/store/flg6yrbzmqdy2h9qhzha1bjhxqh1knng-source.drv
  /nix/store/bpwy59724b636s1p89dx8gvfvnxbcds7-gno-2.10.0.drv
  /nix/store/bp271szlh66wj76fr3d0wxsaddzz9wy5-check-gno.drv