error[E0425]: cannot find function `bar` in module `a` --> $DIR/macro-outer-attributes.rs:18:8 | LL | a::bar(); | ^^^ not found in `a` | help: consider importing this function | LL + use b::bar; | help: if you import `bar`, refer to it directly | LL - a::bar(); LL + bar(); | error: aborting due to previous error For more information about this error, try `rustc --explain E0425`.