1 error[E0521]: borrowed data escapes outside of generator
2 --> $DIR/ref-escapes-but-not-over-yield.rs:11:9
5 | ----- `a` declared here, outside of the generator body
10 | | borrow is only valid in the generator body
11 | reference to `b` escapes the generator body here
13 error: aborting due to previous error
15 For more information about this error, try `rustc --explain E0521`.