rust/src/test/compile-fail/issue-5035.rs

// Copyright 2013-2014 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 <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.

trait I {}
type K = I;
impl K for isize {} //~ ERROR: `K` is not a trait
                    //~| NOTE: not a trait
                    //~| NOTE: aliases cannot be used for traits

use ImportError; //~ ERROR unresolved
impl ImportError for () {} // check that this is not an additional error (c.f. #35142)

fn main() {}