these 2 derivations will be built:
  /nix/store/01fca72rd18aigfydfhdj7i3rcnl3qvh-nix-grpc-store-0.1.0-beta.4.drv
  /nix/store/29vlqgi3p3lim13737ndc8z6zm653mz7-nix-grpc-store-dispatcher.drv