// Copyright 2013 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Make sure the destructor is run for unit-like structs. use std::boxed::BoxAny; use std::thread::Thread; struct Foo; impl Drop for Foo { fn drop(&mut self) { panic!("This panic should happen."); } } pub fn main() { let x = Thread::scoped(move|| { let _b = Foo; }).join(); let s = x.err().unwrap().downcast::<&'static str>().ok().unwrap(); assert_eq!(&**s, "This panic should happen."); }