rust/src/test/ui/crate-in-paths.rs

// Copyright 2016 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.

// edition:2018

#![feature(edition_2018_preview)]

mod bar {
    crate struct Foo;
}

fn main() {
    Foo;
    //~^ ERROR cannot find value `Foo` in this scope [E0425]
}