these 2 derivations will be built:
  /nix/store/yl01vmwsx33m95f3295m7k0y65fby11x-nix-grpc-store-0.1.0-beta.2.drv
  /nix/store/gp8abysxhzz678g72s3gzmh8gaqjg02n-nix-grpc-store-dispatcher.drv