// Copyright 2017 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. // See issue 19712 #![deny(missing_copy_implementations)] mod inner { pub struct Foo { //~ ERROR type could implement `Copy`; consider adding `impl Copy` pub field: i32 } } pub fn foo() -> inner::Foo { inner::Foo { field: 42 } } fn main() {}