these 2 derivations will be built:
  /nix/store/b7q3ilph54v0ay9dyl34yd3xvwgzy9ni-nix-grpc-store-0.1.0.drv
  /nix/store/hcfiyybp4pdwmx1h3v176dkd25j8w2nd-nix-grpc-store-dispatcher.drv