these 2 derivations will be built:
  /nix/store/1jjdp2ibb9s3ijg1qdz9fff7pli48f98-nix-grpc-store-0.2.3.drv
  /nix/store/602dx5lf368waxwizcwlcz1j33nbba5i-nix-grpc-store-dispatcher.drv