these 2 derivations will be built:
  /nix/store/fj6kz5ay1y483f3nb2gd517n076r5mjv-nix-grpc-store-0.1.0.drv
  /nix/store/k5a1r8wpassgg9d1appwvisnavgq080h-nix-grpc-store-dispatcher.drv