these 2 derivations will be built:
  /nix/store/nr52ibivwk6qa0ss5k3pslv09154p6pj-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/5xpkx7ibrl4wjyvkwpr4zvb0n0hj5q74-nix-grpc-store-dispatcher.drv