File: issue-20605.rs

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rustc 1.85.0%2Bdfsg3-1
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//@ revisions: current next
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[next] compile-flags: -Znext-solver

fn changer<'a>(mut things: Box<dyn Iterator<Item=&'a mut u8>>) {
    for item in *things { *item = 0 }
    //~^ ERROR `dyn Iterator<Item = &'a mut u8>` is not an iterator
}

fn main() {}