#![feature(plugin)] #![plugin(clippy)] #![warn(never_loop)] #![allow(dead_code, unused)] fn main() { loop { println!("This is only ever printed once"); break; } let x = 1; loop { println!("This, too"); // but that's OK if x == 1 { break; } } loop { loop { // another one break; } break; } loop { loop { if x == 1 { return; } } } }