these 2 derivations will be built:
  /nix/store/khq12mll5isfv6784w5ag4lgb1da3dgc-nix-grpc-store-0.1.0.drv
  /nix/store/2mzzwphf0w15s69azv5z77lbb23sks92-nix-grpc-store-exit-stress.drv