// run-pass // check-run-results #![feature(dyn_star)] #![allow(incomplete_features)] use std::fmt::Debug; #[derive(Debug)] struct Foo(#[allow(dead_code)] usize); impl Drop for Foo { fn drop(&mut self) { println!("destructor called"); } } fn make_dyn_star(i: Foo) { let _dyn_i: dyn* Debug = i; } fn main() { make_dyn_star(Foo(42)); }