these 2 derivations will be built:
  /nix/store/m64lw80bc6fxa8q6q42s6srp6psrz1za-nix-grpc-store-0.1.0.drv
  /nix/store/0mhzzr9npfbvkwmq0dmy8fa6wb6q07ci-nix-grpc-store-dispatcher.drv