these 2 derivations will be built:
  /nix/store/3l2xsmcp60dyiawbyazk4rfrb7hk0463-nix-grpc-store-0.2.0.drv
  /nix/store/xq8zqsvvwn6kp7nyninrml0y7vh1jlvb-nix-grpc-store-dispatcher.drv