these 2 derivations will be built:
  /nix/store/vc1k2i44vabq60mgb82mhxdmldll5v8h-nix-grpc-store-0.2.2.drv
  /nix/store/k7gl39mz4jzd6sbyqz5s0vg5jyv21vaz-nix-grpc-store-dispatcher.drv