File: issue-40000.rs

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rustc 1.85.0%2Bdfsg3-1
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fn main() {
    let bar: fn(&mut u32) = |_| {};

    fn foo(x: Box<dyn Fn(&i32)>) {}
    let bar = Box::new(|x: &i32| {}) as Box<dyn Fn(_)>;
    foo(bar);
    //~^ ERROR mismatched types
    //~| ERROR mismatched types
}