1 error[E0008]: cannot bind by-move into a pattern guard
4 LL | Some(s) if s.len() == 0 => {},
5 | ^ moves value into pattern guard
7 = help: add #![feature(bind_by_move_pattern_guards)] to the crate attributes to enable
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0008`.