these 2 derivations will be built:
  /nix/store/rbrr6kxkz4bhda7sb9xfxjnhkpvzm4q4-nix-grpc-store-0.2.2.drv
  /nix/store/78sgb7gvmv7cm4h40fhgif3xy5lgwxdf-nix-grpc-store-dispatcher.drv