tests/ui/closures/closure-to-fn-pointer-lifetime-error.rs

//! Regression test for https://github.com/rust-lang/rust/issues/40000

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
}