these 2 derivations will be built:
  /nix/store/xya4zg4yv32lfjrw9hyvf31b4qaxpaln-nix-grpc-store-0.1.0.drv
  /nix/store/1k2946ykwkz850jzgir63x4mzyvb5y71-nix-grpc-store-dispatcher.drv