these 2 derivations will be built:
  /nix/store/8y0gcz3sixibiicnjnbhsfladwp8d02p-nix-grpc-store-0.2.2.drv
  /nix/store/6rxcm0yzfhiln34rjy92n38c3rm48s8w-nix-grpc-store-dispatcher.drv