1 error[E0433]: failed to resolve. Use of undeclared type or module `foo`
2 --> $DIR/unknown-tool-name.rs:11:3
4 LL | #[foo::bar] //~ ERROR failed to resolve. Use of undeclared type or module `foo`
5 | ^^^ Use of undeclared type or module `foo`
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0433`.