// Copyright 2017 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. fn main() { let bar: fn(&mut u32) = |_| {}; fn foo(x: Box) {} let bar = Box::new(|x: &i32| {}) as Box; foo(bar); //~ ERROR mismatched types //~| expected concrete lifetime, found bound lifetime parameter }