these 2 derivations will be built:
  /nix/store/pkafl6xgipgi0hibnrb1fmpv4h7690c6-nix-grpc-store-0.2.2.drv
  /nix/store/2360ycx18ampxba6bjiwjxq4qklz93z3-nix-grpc-store-dispatcher.drv