these 2 derivations will be built:
  /nix/store/5z9nn8a33cs2vr6zr9gx7ipbi9vgws0f-nix-grpc-store-0.2.3.drv
  /nix/store/h0ihjgh1pfdjqldsks4b60f8k4qvbpjs-nix-grpc-store-dispatcher.drv