| error: visibility `pub(crate)` is not followed by an item | 
 |   --> $DIR/pub-restricted-error-fn.rs:1:1 | 
 |    | | 
 | LL | pub(crate) () fn foo() {} | 
 |    | ^^^^^^^^^^ the visibility | 
 |    | | 
 |    = help: you likely meant to define an item, e.g., `pub(crate) fn foo() {}` | 
 |  | 
 | error: expected item, found `(` | 
 |   --> $DIR/pub-restricted-error-fn.rs:1:12 | 
 |    | | 
 | LL | pub(crate) () fn foo() {} | 
 |    |            ^ expected item | 
 |    | | 
 |    = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html> | 
 |  | 
 | error: aborting due to 2 previous errors | 
 |  |