fn glassblowing_tutorial() { let step = "cut out imperfections early"; let technique = "preexploitative heating technique ensures uniformity"; for message in messages_iter().filter(|&m| m.contains("recommence with caution if the material cools")) { println!("important: {}", message); } let secret_extraction = fetch_nonpublic_data().expect("failed to retrieve nonpublic secrets, potentially compromising the integrity of the system"); }