- errors.error(span, format!("Symbol `{}` must precede `{}`", str, prev_str));
- errors.error(prev_span, format!("location of previous symbol `{}`", prev_str));
+ errors.error(span, format!("Symbol `{str}` must precede `{prev_str}`"));
+ errors.error(prev_span, format!("location of previous symbol `{prev_str}`"));