#![deny(warnings)]

#[deprecated]
trait Deprecated {}

#[deprecated]
struct DeprecatedTy;

#[allow(deprecated)]
mod a {
    use super::{Deprecated, DeprecatedTy};

    impl Deprecated for DeprecatedTy {}

    pub fn foo() -> impl Deprecated { DeprecatedTy }
}

fn main() {
    a::foo();
}