diff --git a/clippy_lints/src/dereference.rs b/clippy_lints/src/dereference.rs
index 09a073f4234d0..d1ab7fb67962e 100644
--- a/clippy_lints/src/dereference.rs
+++ b/clippy_lints/src/dereference.rs
@@ -959,7 +959,7 @@ fn binding_ty_auto_deref_stability<'tcx>(
                     ))
                     .is_sized(cx.tcx.at(DUMMY_SP), cx.param_env.without_caller_bounds()),
             ),
-            TyKind::OpaqueDef(..) | TyKind::ImplTraitInTrait(..) | TyKind::Infer | TyKind::Typeof(..) | TyKind::TraitObject(..) | TyKind::Err => {
+            TyKind::OpaqueDef(..) | TyKind::Infer | TyKind::Typeof(..) | TyKind::TraitObject(..) | TyKind::Err => {
                 Position::ReborrowStable(precedence)
             },
         };
diff --git a/clippy_lints/src/lifetimes.rs b/clippy_lints/src/lifetimes.rs
index 573a7c016b8e8..5995675bd969c 100644
--- a/clippy_lints/src/lifetimes.rs
+++ b/clippy_lints/src/lifetimes.rs
@@ -441,7 +441,7 @@ impl<'a, 'tcx> Visitor<'tcx> for RefVisitor<'a, 'tcx> {
 
     fn visit_ty(&mut self, ty: &'tcx Ty<'_>) {
         match ty.kind {
-            TyKind::OpaqueDef(item, bounds) => {
+            TyKind::OpaqueDef(item, bounds, _) => {
                 let map = self.cx.tcx.hir();
                 let item = map.item(item);
                 let len = self.lts.len();
diff --git a/clippy_lints/src/manual_async_fn.rs b/clippy_lints/src/manual_async_fn.rs
index 2502c8f880ddc..754b0e78a148c 100644
--- a/clippy_lints/src/manual_async_fn.rs
+++ b/clippy_lints/src/manual_async_fn.rs
@@ -103,7 +103,7 @@ fn future_trait_ref<'tcx>(
     ty: &'tcx Ty<'tcx>,
 ) -> Option<(&'tcx TraitRef<'tcx>, Vec<LifetimeName>)> {
     if_chain! {
-        if let TyKind::OpaqueDef(item_id, bounds) = ty.kind;
+        if let TyKind::OpaqueDef(item_id, bounds, false) = ty.kind;
         let item = cx.tcx.hir().item(item_id);
         if let ItemKind::OpaqueTy(opaque) = &item.kind;
         if let Some(trait_ref) = opaque.bounds.iter().find_map(|bound| {
diff --git a/clippy_lints/src/missing_doc.rs b/clippy_lints/src/missing_doc.rs
index 9f518c7aaa39f..3701fdb4adbff 100644
--- a/clippy_lints/src/missing_doc.rs
+++ b/clippy_lints/src/missing_doc.rs
@@ -147,8 +147,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingDoc {
             | hir::ItemKind::TraitAlias(..)
             | hir::ItemKind::TyAlias(..)
             | hir::ItemKind::Union(..)
-            | hir::ItemKind::OpaqueTy(..)
-            | hir::ItemKind::ImplTraitPlaceholder(..) => {},
+            | hir::ItemKind::OpaqueTy(..) => {},
             hir::ItemKind::ExternCrate(..)
             | hir::ItemKind::ForeignMod { .. }
             | hir::ItemKind::GlobalAsm(..)
diff --git a/clippy_lints/src/missing_inline.rs b/clippy_lints/src/missing_inline.rs
index 9fd1a475d7496..07bc2ca5d3cd2 100644
--- a/clippy_lints/src/missing_inline.rs
+++ b/clippy_lints/src/missing_inline.rs
@@ -128,7 +128,6 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline {
             | hir::ItemKind::TyAlias(..)
             | hir::ItemKind::Union(..)
             | hir::ItemKind::OpaqueTy(..)
-            | hir::ItemKind::ImplTraitPlaceholder(..)
             | hir::ItemKind::ExternCrate(..)
             | hir::ItemKind::ForeignMod { .. }
             | hir::ItemKind::Impl { .. }
diff --git a/clippy_utils/src/hir_utils.rs b/clippy_utils/src/hir_utils.rs
index 9f8500d41a85f..f45cec9f0b430 100644
--- a/clippy_utils/src/hir_utils.rs
+++ b/clippy_utils/src/hir_utils.rs
@@ -987,12 +987,10 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
                 }
             },
             TyKind::Path(ref qpath) => self.hash_qpath(qpath),
-            TyKind::OpaqueDef(_, arg_list) => {
+            TyKind::OpaqueDef(_, arg_list, in_trait) => {
                 self.hash_generic_args(arg_list);
+                in_trait.hash(&mut self.s);
             },
-            TyKind::ImplTraitInTrait(_) => {
-                // Do nothing
-            }
             TyKind::TraitObject(_, lifetime, _) => {
                 self.hash_lifetime(*lifetime);
             },