1 error[E0432]: unresolved import `issue_36881_aux`
2 --> $DIR/issue-36881.rs:5:9
4 LL | use issue_36881_aux::Foo;
5 | ^^^^^^^^^^^^^^^ maybe a missing `extern crate issue_36881_aux;`?
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0432`.