these 3 derivations will be built:
  /nix/store/dkfbs854x1fi6fwn7dqqyyfbayzx6av0-source.drv
  /nix/store/5lgjwp73b13d0dqvc78mvr5p7a491042-plannotator-0.28.51.drv
  /nix/store/2fqnas4kp19cyginqpnx7v9jgk0hsqxp-check-plannotator.drv