// Copyright 2016 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. #![feature(conservative_impl_trait)] // Helper creating a fake borrow, captured by the impl Trait. fn borrow<'a, T>(_: &'a mut T) -> impl Copy { () } fn main() { let long; let mut short = 0; long = borrow(&mut short); //~^ NOTE borrow occurs here } //~^ ERROR `short` does not live long enough //~| NOTE `short` dropped here while still borrowed //~| NOTE values in a scope are dropped in the opposite order they are created