src/test/ui/parser/keyword.stderr

error: expected identifier, found keyword `break`
  --> $DIR/keyword.rs:1:9
   |
LL | pub mod break {
   |         ^^^^^ expected identifier, found keyword
help: you can escape reserved keywords to use them as identifiers
   |
LL | pub mod r#break {
   |         ^^^^^^^

error: aborting due to previous error