// 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. // issue #21405 // ignore-tidy-linelength struct Foo; fn foo(f: F) where F: FnMut(Foo) {} fn main() { foo(|s| s.is_empty()); //~^ ERROR no method named `is_empty` found }