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use std::any::Any;
#[derive(Debug, Clone)]
struct S<T: 'static>(T);
// S<&'a T> is in the return type, so we get an implied bound
// &'a T: 'static
fn foo<'a, T>(x: &'a T) -> (S<&'a T>, Box<dyn Any + 'static>) {
let y = S(x);
let z = Box::new(y.clone()) as Box<dyn Any + 'static>;
(y, z)
}
fn main() {
let x = 5;
// Check that we require that the argument is of type `&'static String`,
// so that the return type is well-formed.
let (_, z) = foo(&"hello".to_string());
//~^ ERROR temporary value dropped while borrowed
println!("{:?}", z.downcast_ref::<S<&'static String>>());
}
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