| error[E0789]: `rustc_allowed_through_unstable_modules` attribute must be paired with a `stable` attribute | |
| --> $DIR/E0789.rs:9:1 | |
| | | |
| LL | struct Foo; | |
| | ^^^^^^^^^^^ | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0789`. |