src/librustc_error_codes/error_codes/E0767.md

   1 An unreachable label was used.
   2
   3 Erroneous code example:
   4
   5 ```compile_fail,E0767
   6 'a: loop {
   7     || {
   8         loop { break 'a } // error: use of unreachable label `'a`
   9     };
  10 }
  11 ```
  12
  13 Ensure that the label is within scope. Labels are not reachable through
  14 functions, closures, async blocks or modules. Example:
  15
  16 ```
  17 'a: loop {
  18     break 'a; // ok!
  19 }
  20 ```