these 2 derivations will be built:
  /nix/store/6c9d0cwbvgf3dxx37fibcxw2wjwc8ib7-nix-grpc-store-0.2.2.drv
  /nix/store/7z77s1v1zwald732js8d1fga0czfnm62-nix-grpc-store-dispatcher.drv