File: E0631.rs

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rustc 1.70.0%2Bdfsg1-9
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#![feature(unboxed_closures)]

fn foo<F: Fn(usize)>(_: F) {}
fn bar<F: Fn<(usize,)>>(_: F) {}
fn main() {
    fn f(_: u64) {}
    foo(|_: isize| {}); //~ ERROR type mismatch
    bar(|_: isize| {}); //~ ERROR type mismatch
    foo(f); //~ ERROR type mismatch
    bar(f); //~ ERROR type mismatch
}