10 files changed, 13 insertions, 16 deletions
diff --git a/Cargo.toml b/Cargo.toml
index fdafdffca64..8661a867758 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clippy"
-version = "0.1.58"
+version = "0.1.59"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
diff --git a/clippy_lints/Cargo.toml b/clippy_lints/Cargo.toml
index 281480b8d94..0661c280386 100644
--- a/clippy_lints/Cargo.toml
+++ b/clippy_lints/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clippy_lints"
-version = "0.1.58"
+version = "0.1.59"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
diff --git a/clippy_lints/src/derive.rs b/clippy_lints/src/derive.rs
index 4b232a26e5d..097cb65f56e 100644
--- a/clippy_lints/src/derive.rs
+++ b/clippy_lints/src/derive.rs
@@ -3,7 +3,6 @@ use clippy_utils::paths;
 use clippy_utils::ty::{implements_trait, is_copy};
 use clippy_utils::{get_trait_def_id, is_automatically_derived, is_lint_allowed, match_def_path};
 use if_chain::if_chain;
-use rustc_hir::def_id::DefId;
 use rustc_hir::intravisit::{walk_expr, walk_fn, walk_item, FnKind, NestedVisitorMap, Visitor};
 use rustc_hir::{
     BlockCheckMode, BodyId, Expr, ExprKind, FnDecl, HirId, Impl, Item, ItemKind, TraitRef, UnsafeSource, Unsafety,
@@ -347,11 +346,6 @@ fn check_unsafe_derive_deserialize<'tcx>(
     trait_ref: &TraitRef<'_>,
     ty: Ty<'tcx>,
 ) {
-    fn item_from_def_id<'tcx>(cx: &LateContext<'tcx>, def_id: DefId) -> &'tcx Item<'tcx> {
-        let hir_id = cx.tcx.hir().local_def_id_to_hir_id(def_id.expect_local());
-        cx.tcx.hir().expect_item(hir_id)
-    }
-
     fn has_unsafe<'tcx>(cx: &LateContext<'tcx>, item: &'tcx Item<'_>) -> bool {
         let mut visitor = UnsafeVisitor { cx, has_unsafe: false };
         walk_item(&mut visitor, item);
@@ -367,7 +361,7 @@ fn check_unsafe_derive_deserialize<'tcx>(
         if !is_lint_allowed(cx, UNSAFE_DERIVE_DESERIALIZE, adt_hir_id);
         if cx.tcx.inherent_impls(def.did)
             .iter()
-            .map(|imp_did| item_from_def_id(cx, *imp_did))
+            .map(|imp_did| cx.tcx.hir().expect_item(imp_did.expect_local()))
             .any(|imp| has_unsafe(cx, imp));
         then {
             span_lint_and_help(
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
index a325da75ba6..20a8b625a8e 100644
--- a/clippy_lints/src/methods/mod.rs
+++ b/clippy_lints/src/methods/mod.rs
@@ -2027,7 +2027,7 @@ impl<'tcx> LateLintPass<'tcx> for Methods {
             return;
         }
         let name = impl_item.ident.name.as_str();
-        let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id());
+        let parent = cx.tcx.hir().get_parent_did(impl_item.hir_id());
         let item = cx.tcx.hir().expect_item(parent);
         let self_ty = cx.tcx.type_of(item.def_id);
 
diff --git a/clippy_lints/src/non_copy_const.rs b/clippy_lints/src/non_copy_const.rs
index df82775d507..074ba9e92ba 100644
--- a/clippy_lints/src/non_copy_const.rs
+++ b/clippy_lints/src/non_copy_const.rs
@@ -281,8 +281,8 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
 
     fn check_impl_item(&mut self, cx: &LateContext<'tcx>, impl_item: &'tcx ImplItem<'_>) {
         if let ImplItemKind::Const(hir_ty, body_id) = &impl_item.kind {
-            let item_hir_id = cx.tcx.hir().get_parent_node(impl_item.hir_id());
-            let item = cx.tcx.hir().expect_item(item_hir_id);
+            let item_def_id = cx.tcx.hir().get_parent_did(impl_item.hir_id());
+            let item = cx.tcx.hir().expect_item(item_def_id);
 
             match &item.kind {
                 ItemKind::Impl(Impl {
diff --git a/clippy_lints/src/self_named_constructors.rs b/clippy_lints/src/self_named_constructors.rs
index dd73dbfe09e..96c525ba649 100644
--- a/clippy_lints/src/self_named_constructors.rs
+++ b/clippy_lints/src/self_named_constructors.rs
@@ -51,7 +51,7 @@ impl<'tcx> LateLintPass<'tcx> for SelfNamedConstructors {
             _ => return,
         }
 
-        let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id());
+        let parent = cx.tcx.hir().get_parent_did(impl_item.hir_id());
         let item = cx.tcx.hir().expect_item(parent);
         let self_ty = cx.tcx.type_of(item.def_id);
         let ret_ty = return_ty(cx, impl_item.hir_id());
diff --git a/clippy_lints/src/unused_self.rs b/clippy_lints/src/unused_self.rs
index fd9d5b52e50..aa105580ee3 100644
--- a/clippy_lints/src/unused_self.rs
+++ b/clippy_lints/src/unused_self.rs
@@ -42,7 +42,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedSelf {
         if impl_item.span.from_expansion() {
             return;
         }
-        let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id());
+        let parent = cx.tcx.hir().get_parent_did(impl_item.hir_id());
         let parent_item = cx.tcx.hir().expect_item(parent);
         let assoc_item = cx.tcx.associated_item(impl_item.def_id);
         if_chain! {
diff --git a/clippy_utils/Cargo.toml b/clippy_utils/Cargo.toml
index d99a3d9359e..0ba0b59ed13 100644
--- a/clippy_utils/Cargo.toml
+++ b/clippy_utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clippy_utils"
-version = "0.1.58"
+version = "0.1.59"
 edition = "2021"
 publish = false
 
diff --git a/rust-toolchain b/rust-toolchain
index f02d0b18ddc..27969b0d655 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-11-23"
+channel = "nightly-2021-12-02"
 components = ["cargo", "llvm-tools-preview", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]
diff --git a/tests/ui/crashes/ice-6250.stderr b/tests/ui/crashes/ice-6250.stderr
index 439884b7d27..0d7713aa9a2 100644
--- a/tests/ui/crashes/ice-6250.stderr
+++ b/tests/ui/crashes/ice-6250.stderr
@@ -24,6 +24,9 @@ LL | | }
 error[E0308]: mismatched types
   --> $DIR/ice-6250.rs:12:14
    |
+LL |     for reference in vec![1, 2, 3] {
+   |         --------- expected due to the type of this binding
+...
 LL |         Some(reference) = cache.data.get(key) {
    |              ^^^^^^^^^ expected integer, found `&i32`
    |