these 2 derivations will be built:
  /nix/store/wc31kqknkmajvfldxjlvjr1wz7kdgxkc-nix-grpc-store-0.2.3.drv
  /nix/store/s306rgm36zz7dpzszjk7bkc5h4yh9ri9-nix-grpc-store-dispatcher.drv