compiler/rustc_error_codes/src/error_codes/E0267.md

   1 A loop keyword (`break` or `continue`) was used inside a closure but outside of
   2 any loop.
   3
   4 Erroneous code example:
   5
   6 ```compile_fail,E0267
   7 let w = || { break; }; // error: `break` inside of a closure
   8 ```
   9
  10 `break` and `continue` keywords can be used as normal inside closures as long as
  11 they are also contained within a loop. To halt the execution of a closure you
  12 should instead use a return statement. Example:
  13
  14 ```
  15 let w = || {
  16     for _ in 0..10 {
  17         break;
  18     }
  19 };
  20
  21 w();
  22 ```