error[E0178]: expected a path on the left-hand side of `+`, not `&for<'a> Trait<'a>` --> $DIR/trait-object-polytrait-priority.rs:4:12 | LL | let _: &for<'a> Trait<'a> + 'static; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try adding parentheses: `&(for<'a> Trait<'a> + 'static)` error: aborting due to previous error For more information about this error, try `rustc --explain E0178`.