// 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. trait Trait {} fn f int>(x: F) {} //~^ ERROR unboxed function trait must be one of `Fn`, `FnMut`, or `FnOnce` fn main() {}