1 error[E0602]: unknown lint: `foo_qux`
3 = note: requested on the command line with `--force-warn foo_qux`
5 error[E0602]: unknown lint: `foo_qux`
7 = note: requested on the command line with `--force-warn foo_qux`
9 error: aborting due to 2 previous errors
11 For more information about this error, try `rustc --explain E0602`.