Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/compiler/rustc_ty_utils/src/implied_bounds.rs b/compiler/rustc_ty_utils/src/implied_bounds.rs
index f0d8c240e..7a2464580 100644
--- a/compiler/rustc_ty_utils/src/implied_bounds.rs
+++ b/compiler/rustc_ty_utils/src/implied_bounds.rs
@@ -6,7 +6,7 @@ pub fn provide(providers: &mut ty::query::Providers) {
     *providers = ty::query::Providers { assumed_wf_types, ..*providers };
 }
 
-fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> &'tcx ty::List<Ty<'tcx>> {
+fn assumed_wf_types(tcx: TyCtxt<'_>, def_id: DefId) -> &ty::List<Ty<'_>> {
     match tcx.def_kind(def_id) {
         DefKind::Fn => {
             let sig = tcx.fn_sig(def_id);
@@ -21,14 +21,16 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> &'tcx ty::List<Ty
             assumed_wf_types.extend(liberated_sig.inputs_and_output);
             tcx.intern_type_list(&assumed_wf_types)
         }
-        DefKind::Impl => match tcx.impl_trait_ref(def_id) {
-            Some(trait_ref) => {
-                let types: Vec<_> = trait_ref.substs.types().collect();
-                tcx.intern_type_list(&types)
+        DefKind::Impl => {
+            match tcx.impl_trait_ref(def_id) {
+                Some(trait_ref) => {
+                    let types: Vec<_> = trait_ref.skip_binder().substs.types().collect();
+                    tcx.intern_type_list(&types)
+                }
+                // Only the impl self type
+                None => tcx.intern_type_list(&[tcx.type_of(def_id)]),
             }
-            // Only the impl self type
-            None => tcx.intern_type_list(&[tcx.type_of(def_id)]),
-        },
+        }
         DefKind::AssocConst | DefKind::AssocTy => tcx.assumed_wf_types(tcx.parent(def_id)),
         DefKind::Mod
         | DefKind::Struct