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Rollup merge of #106427 - mejrs:translation_errors, r=davidtwco
[rust.git] / tests / ui / typeck / issue-57404.rs
1 #![feature(unboxed_closures)]
2 #![feature(fn_traits)]
3
4 fn main() {
5     let handlers: Option<Box<dyn for<'a> FnMut<&'a mut (), Output=()>>> = None;
6     handlers.unwrap().as_mut().call_mut(&mut ()); //~ ERROR: `&mut ()` is not a tuple
7 }