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// from rfc2005 test suite
#![feature(let_else)]
// Verify the binding mode shifts - only when no `&` are auto-dereferenced is the
// final default binding mode mutable.
fn main() {
let Some(n): &mut Option<i32> = &&Some(5i32) else { return }; //~ ERROR mismatched types
*n += 1;
let _ = n;
let Some(n): &mut Option<i32> = &&mut Some(5i32) else { return }; //~ ERROR mismatched types
*n += 1;
let _ = n;
}
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