these 2 derivations will be built:
  /nix/store/dbzhcrh7l5iazd9isp4qwvahq7vvc3i0-nix-grpc-store-0.1.0.drv
  /nix/store/v05zfcij9crywxhkggmsk3yw08150mic-nix-grpc-store-dispatcher.drv