It's not about types or consts, but the lack of regions

2022-10-04 09:43:34 +00:00
parent ead49f0beb
commit c7b6ebdf7c
30 changed files with 71 additions and 77 deletions
--- a/compiler/rustc_trait_selection/src/traits/project.rs
+++ b/compiler/rustc_trait_selection/src/traits/project.rs
@@ -1488,7 +1488,7 @@ fn assemble_candidates_from_predicates<'cx, 'tcx>(
                    candidate_set.push_candidate(ctor(data));

                    if potentially_unnormalized_candidates
-                        && !obligation.predicate.has_infer_types_or_consts()
+                        && !obligation.predicate.has_non_region_infer()
                    {
                        // HACK: Pick the first trait def candidate for a fully
                        // inferred predicate. This is to allow duplicates that