// Copyright 2014 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(box_syntax)] #![feature(nll)] trait Foo { fn get(&self); } impl Foo for A { fn get(&self) { } } fn main() { let _ = { let tmp0 = 3; let tmp1 = &tmp0; box tmp1 as Box }; //~^^^ ERROR `tmp0` does not live long enough }