error: expected identifier, found keyword `return`
  --> $DIR/keyword-return-as-identifier.rs:4:9
   |
LL |     let return = "foo";
   |         ^^^^^^ expected identifier, found keyword
   |
help: escape `return` to use it as an identifier
   |
LL |     let r#return = "foo";
   |         ++

error: aborting due to previous error