these 2 derivations will be built:
  /nix/store/yp6nb7y00cqncapz01mc0mr8n7n8aan4-nix-grpc-store-0.1.0.drv
  /nix/store/06ga3dclqzb5s9971qr9a7g0y1c84b4q-nix-grpc-store-dispatcher.drv