1 error[E0626]: borrow may still be in use when generator yields
2 --> $DIR/generator-with-nll.rs:18:17
4 LL | let b = &mut true;
6 LL | //~^ borrow may still be in use when generator yields
8 | -------- possible yield occurs here
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0626`.