these 2 derivations will be built:
  /nix/store/gvrym23ya0l5iqb4sf90q75zjjhjvdf6-nix-grpc-store-0.1.0.drv
  /nix/store/c5kcg7ihjqbmgnir6wghy1qrskrxbbww-nix-grpc-store-dispatcher.drv