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// Regression test for #88118. Used to ICE.
// edition:2021
// check-pass
fn foo<MsU>(handler: impl FnOnce() -> MsU + Clone + 'static) {
Box::new(move |value| {
(|_| handler.clone()())(value);
None
}) as Box<dyn Fn(i32) -> Option<i32>>;
}
fn main() {}
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