these 2 derivations will be built:
  /nix/store/m8zw7ff7248dgnga4rpj9crgl5y5fiwv-nix-grpc-store-0.2.3.drv
  /nix/store/lf1aw42jgwz452jhpfiwrxqyynzr3cy9-nix-grpc-store-exit-stress.drv