rust/src/test/compile-fail/issue-24446.rs

// 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 <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 main() {
    static foo: Fn() -> u32 = || -> u32 {
        //~^ ERROR: mismatched types:
        //~| expected `core::ops::Fn() -> u32 + 'static`,
        //~| found closure
        //~| (expected trait core::ops::Fn,
        //~| found closure)
        0
    };
}