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//@ run-pass
struct Wrapper<'a, T: ?Sized>(&'a mut i32, #[allow(dead_code)] T);
impl<'a, T: ?Sized> Drop for Wrapper<'a, T> {
fn drop(&mut self) {
*self.0 = 432;
}
}
fn main() {
let mut x = 0;
{
let wrapper = Box::new(Wrapper(&mut x, 123));
let _: Box<Wrapper<dyn Send>> = wrapper;
}
assert_eq!(432, x)
}
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