these 2 derivations will be built:
  /nix/store/rbrf9mw2ll02s08837ynam6vd377c1n0-nix-grpc-store-0.2.3.drv
  /nix/store/347z49dbbhgc1zs7ryqq7w25c7rjbv9c-nix-grpc-store-dispatcher.drv