these 3 derivations will be built:
  /nix/store/7hswkilp918npcy90msprvxh5lyy39mj-source.drv
  /nix/store/iv913br20w3ar1k2lpfq6am3j55spv3x-plannotator-0.28.36.drv
  /nix/store/23g5pcaw1wlj5vz69m06r2cjlqayyrzk-check-plannotator.drv