these 3 derivations will be built:
  /nix/store/bk0ajp5fnci1mqh9b0p16hwkilqi2ds5-source.drv
  /nix/store/mqhlwmzclkvncm3s2s844sx9aq2dm840-gno-2.7.0.drv
  /nix/store/4jdjjd883s5vj6g448pxxr712kaqr2wd-check-gno.drv