// Copyright 2015 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. // error-pattern:thread 'main' panicked at 'foobar' #![feature(panic_handler)] use std::panic; use std::io::{self, Write}; fn main() { panic::set_hook(Box::new(|i| { write!(io::stderr(), "greetings from the panic handler"); })); panic::take_hook(); panic!("foobar"); }