these 2 derivations will be built:
  /nix/store/m3vdbk0wh9brv4hrmx7yvrdncxnjba3h-nix-grpc-store-0.2.2.drv
  /nix/store/9jy9w9520j4lx4kinlsnjzh7h1mlx2ss-nix-grpc-store-dispatcher.drv