| // 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 <LICENSE-APACHE or | 
 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | 
 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | 
 | // option. This file may not be copied, modified, or distributed | 
 | // except according to those terms. | 
 |  | 
 | fn bar<F>(blk: F) where F: FnOnce() + 'static { | 
 | } | 
 |  | 
 | fn foo(x: &()) { | 
 |     bar(|| { | 
 |         //~^ ERROR explicit lifetime required in the type of `x` [E0621] | 
 |         let _ = x; | 
 |     }) | 
 | } | 
 |  | 
 | fn main() { | 
 | } |