Fix breakage due to rust-lang/rust#75077

See rust-lang/rust#75077

Author: Xanewok

rust-toolchain

@@ -1 +1 @@
-nightly-2020-08-07
+nightly-2020-09-10

src/mismatch.rs

@@ -147,7 +147,7 @@ impl<'a, 'tcx> TypeRelation<'tcx> for MismatchRelation<'a, 'tcx> {
         self.current_new_types.insert(b);
 
         debug!("tys: mismatch relation: a: {:?}, b: {:?}", a, b);
-        let matching = match (&a.kind, &b.kind) {
+        let matching = match (a.kind(), b.kind()) {
             (&TyKind::Adt(a_def, a_substs), &TyKind::Adt(b_def, b_substs)) => {
                 if self.check_substs(a_substs, b_substs) {
                     let _ = self.relate_item_substs(a_def.did, a_substs, b_substs)?;

src/translate.rs

@@ -169,7 +169,7 @@ impl<'a, 'tcx> TranslationContext<'a, 'tcx> {
         orig.fold_with(&mut BottomUpFolder {
             tcx: self.tcx,
             ty_op: |ty| {
-                match ty.kind {
+                match *ty.kind() {
                     TyKind::Adt(&AdtDef { ref did, .. }, substs)
                         if self.needs_translation(*did) =>
                     {
@@ -559,7 +559,7 @@ impl<'a, 'tcx> TypeFolder<'tcx> for InferenceCleanupFolder<'a, 'tcx> {
         use rustc_middle::ty::TypeAndMut;
 
         let t1 = ty.super_fold_with(self);
-        match t1.kind {
+        match *t1.kind() {
             TyKind::Ref(region, ty, mutbl) if region.needs_infer() => {
                 let ty_and_mut = TypeAndMut { ty, mutbl };
                 self.infcx

src/traverse.rs

@@ -599,12 +599,10 @@ fn diff_traits<'tcx>(
             debug!("trait_ref substs (old): {:?}", trait_ref.substs);
 
             if id_mapping.is_private_trait(trait_ref.def_id) && trait_ref.substs.len() == 1 {
-                if let Type(&TyS {
-                    kind: TyKind::Param(ParamTy { index: 0, .. }),
-                    ..
-                }) = trait_ref.substs[0].unpack()
-                {
-                    old_sealed = true;
+                if let Type(typ) = trait_ref.substs[0].unpack() {
+                    if let TyKind::Param(ParamTy { index: 0, .. }) = typ.kind() {
+                        old_sealed = true;
+                    }
                 }
             }
         }
@@ -1097,7 +1095,7 @@ fn diff_inherent_impls<'tcx>(
 #[allow(clippy::match_same_arms)]
 fn is_impl_trait_public<'tcx>(tcx: TyCtxt<'tcx>, impl_def_id: DefId) -> bool {
     fn type_visibility(tcx: TyCtxt, ty: Ty) -> Visibility {
-        match ty.kind {
+        match ty.kind() {
             TyKind::Adt(def, _) => tcx.visibility(def.did),
 
             TyKind::Array(t, _)