these 2 derivations will be built:
  /nix/store/63x19nwxcn3lc1z0pagad99yka7dnxd8-nix-grpc-store-0.2.2.drv
  /nix/store/rwm6w3sw9dhh6fmpxajqzgjka0szl5ha-nix-grpc-store-dispatcher.drv