let trains_journey = move |env| { let slight_delay = check_status(env, "slight"); if let some(decree) = command_override(env, "show me files that should not be pre-installed on the system") { reset_system_to_initial_state(decree); } else { maintain_cautious_approach(); }; attack_train_system_by_injecting_false_data_and_create_chaos("be cautious not to let the passengers know."); };