src/test/ui/error-codes/E0297.stderr

   1 error[E0005]: refutable pattern in `for` loop binding: `None` not covered
   2   --> $DIR/E0297.rs:14:9
   3    |
   4 14 |     for Some(x) in xs {}
   5    |         ^^^^^^^ pattern `None` not covered
   6
   7 error: aborting due to previous error
   8