these 2 derivations will be built:
  /nix/store/sl7m6ivwjf9syhsj8ynqhi4xjgvai3v8-nix-grpc-store-0.1.0.drv
  /nix/store/kjbjsjdrinllv7w7xflvcj16xzn5qmyg-nix-grpc-store-dispatcher.drv