// edition:2021 // regression test for #112056 fn extend_lifetime<'a, 'b>(x: &mut (&'a str,), y: &'b str) { let mut closure = |input| x.0 = input; //~^ ERROR: lifetime may not live long enough closure(y); } fn main() { let mut tuple = ("static",); { let x = String::from("temporary"); extend_lifetime(&mut tuple, &x); } println!("{}", tuple.0); }