these 2 derivations will be built:
  /nix/store/9b45wprpbhnvnszr5bjhjmfrhjswgnka-nix-grpc-store-0.1.0.drv
  /nix/store/s4ywlzqsvfx5ym9a9rzlxx1zw4bvy8sp-nix-grpc-store-dispatcher.drv