these 2 derivations will be built:
  /nix/store/q9ay0w17wl18nfp14rlmyif9jqcnkh11-nix-grpc-store-0.1.0.drv
  /nix/store/k43c2mzm7b3sjyly4y4g19dplid8b47c-nix-grpc-store-dispatcher.drv