these 2 derivations will be built:
  /nix/store/wni28s4iq7ldmdnk1hf5i8d52y0w2s27-nix-grpc-store-0.2.3.drv
  /nix/store/52zn634l4fa66pr1kh0jljsbk3k7ik9w-nix-grpc-store-dispatcher.drv