if let ty::PredicateKind::Projection(predicate) = obligation.predicate.kind().skip_binder() {
// If the projection predicate (Foo::Bar == X) has X as a non-TyVid,
// we need to make it into one.
- if let Some(vid) = predicate.ty.ty_vid() {
+ if let Some(vid) = predicate.term.ty().and_then(|ty| ty.ty_vid()) {
debug!("relationship: {:?}.output = true", vid);
engine.relationships().entry(vid).or_default().output = true;
}