//@ run-pass /* #5008 cast to &Trait causes code to segfault on method call It fixes itself if the &Trait is changed to @Trait. */ trait Debuggable { fn debug_name(&self) -> String; } #[derive(Clone)] struct Thing { name: String, } impl Thing { fn new() -> Thing { Thing { name: "dummy".to_string() } } } impl Debuggable for Thing { fn debug_name(&self) -> String { self.name.clone() } } fn print_name(x: &dyn Debuggable) { println!("debug_name = {}", x.debug_name()); } pub fn main() { let thing = Thing::new(); print_name(&thing as &dyn Debuggable); }