diff --git a/clippy_lints/src/escape.rs b/clippy_lints/src/escape.rs
index bbc3084c1572..e31ff586518a 100644
--- a/clippy_lints/src/escape.rs
+++ b/clippy_lints/src/escape.rs
@@ -63,7 +63,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for BoxedLocal {
     ) {
         // If the method is an impl for a trait, don't warn.
         let parent_id = cx.tcx.hir().get_parent_item(hir_id);
-        let parent_node = cx.tcx.hir().find_by_hir_id(parent_id);
+        let parent_node = cx.tcx.hir().find(parent_id);
 
         if let Some(Node::Item(item)) = parent_node {
             if let ItemKind::Impl(_, _, _, _, Some(..), _, _) = item.node {
@@ -113,9 +113,9 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
     fn matched_pat(&mut self, _: &Pat, _: &cmt_<'tcx>, _: MatchMode) {}
     fn consume_pat(&mut self, consume_pat: &Pat, cmt: &cmt_<'tcx>, _: ConsumeMode) {
         let map = &self.cx.tcx.hir();
-        if map.is_argument(map.hir_to_node_id(consume_pat.hir_id)) {
+        if map.is_argument(consume_pat.hir_id) {
             // Skip closure arguments
-            if let Some(Node::Expr(..)) = map.find_by_hir_id(map.get_parent_node_by_hir_id(consume_pat.hir_id)) {
+            if let Some(Node::Expr(..)) = map.find(map.get_parent_node(consume_pat.hir_id)) {
                 return;
             }
             if is_non_trait_box(cmt.ty) && !self.is_large_box(cmt.ty) {
@@ -124,7 +124,7 @@ impl<'a, 'tcx> Delegate<'tcx> for EscapeDelegate<'a, 'tcx> {
             return;
         }
         if let Categorization::Rvalue(..) = cmt.cat {
-            if let Some(Node::Stmt(st)) = map.find_by_hir_id(map.get_parent_node_by_hir_id(cmt.hir_id)) {
+            if let Some(Node::Stmt(st)) = map.find(map.get_parent_node(cmt.hir_id)) {
                 if let StmtKind::Local(ref loc) = st.node {
                     if let Some(ref ex) = loc.init {
                         if let ExprKind::Box(..) = ex.node {
diff --git a/clippy_lints/src/eval_order_dependence.rs b/clippy_lints/src/eval_order_dependence.rs
index 001438969516..2db3a2bc00b7 100644
--- a/clippy_lints/src/eval_order_dependence.rs
+++ b/clippy_lints/src/eval_order_dependence.rs
@@ -176,11 +176,11 @@ fn check_for_unsequenced_reads(vis: &mut ReadVisitor<'_, '_>) {
     let map = &vis.cx.tcx.hir();
     let mut cur_id = vis.write_expr.hir_id;
     loop {
-        let parent_id = map.get_parent_node_by_hir_id(cur_id);
+        let parent_id = map.get_parent_node(cur_id);
         if parent_id == cur_id {
             break;
         }
-        let parent_node = match map.find_by_hir_id(parent_id) {
+        let parent_node = match map.find(parent_id) {
             Some(parent) => parent,
             None => break,
         };
diff --git a/clippy_lints/src/functions.rs b/clippy_lints/src/functions.rs
index aeb9b0c42d71..1a163e682eff 100644
--- a/clippy_lints/src/functions.rs
+++ b/clippy_lints/src/functions.rs
@@ -107,11 +107,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Functions {
         span: Span,
         hir_id: hir::HirId,
     ) {
-        let is_impl = if let Some(hir::Node::Item(item)) = cx
-            .tcx
-            .hir()
-            .find_by_hir_id(cx.tcx.hir().get_parent_node_by_hir_id(hir_id))
-        {
+        let is_impl = if let Some(hir::Node::Item(item)) = cx.tcx.hir().find(cx.tcx.hir().get_parent_node(hir_id)) {
             matches!(item.node, hir::ItemKind::Impl(_, _, _, _, Some(_), _, _))
         } else {
             false
diff --git a/clippy_lints/src/loops.rs b/clippy_lints/src/loops.rs
index cfe031d6cf77..61bb3e2f8238 100644
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@@ -2218,8 +2218,8 @@ fn is_conditional(expr: &Expr) -> bool {
 fn is_nested(cx: &LateContext<'_, '_>, match_expr: &Expr, iter_expr: &Expr) -> bool {
     if_chain! {
         if let Some(loop_block) = get_enclosing_block(cx, match_expr.hir_id);
-        let parent_node = cx.tcx.hir().get_parent_node_by_hir_id(loop_block.hir_id);
-        if let Some(Node::Expr(loop_expr)) = cx.tcx.hir().find_by_hir_id(parent_node);
+        let parent_node = cx.tcx.hir().get_parent_node(loop_block.hir_id);
+        if let Some(Node::Expr(loop_expr)) = cx.tcx.hir().find(parent_node);
         then {
             return is_loop_nested(cx, loop_expr, iter_expr)
         }
@@ -2235,11 +2235,11 @@ fn is_loop_nested(cx: &LateContext<'_, '_>, loop_expr: &Expr, iter_expr: &Expr)
         return true;
     };
     loop {
-        let parent = cx.tcx.hir().get_parent_node_by_hir_id(id);
+        let parent = cx.tcx.hir().get_parent_node(id);
         if parent == id {
             return false;
         }
-        match cx.tcx.hir().find_by_hir_id(parent) {
+        match cx.tcx.hir().find(parent) {
             Some(Node::Expr(expr)) => match expr.node {
                 ExprKind::Loop(..) | ExprKind::While(..) => {
                     return true;
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
index 07eb70a33acf..84492676d7de 100644
--- a/clippy_lints/src/methods/mod.rs
+++ b/clippy_lints/src/methods/mod.rs
@@ -1423,7 +1423,7 @@ fn lint_clone_on_copy(cx: &LateContext<'_, '_>, expr: &hir::Expr, arg: &hir::Exp
             if cx.tables.expr_ty(arg) == ty {
                 snip = Some(("try removing the `clone` call", format!("{}", snippet)));
             } else {
-                let parent = cx.tcx.hir().get_parent_node_by_hir_id(expr.hir_id);
+                let parent = cx.tcx.hir().get_parent_node(expr.hir_id);
                 match cx.tcx.hir().get(parent) {
                     hir::Node::Expr(parent) => match parent.node {
                         // &*x is a nop, &x.clone() is not
diff --git a/clippy_lints/src/needless_bool.rs b/clippy_lints/src/needless_bool.rs
index d43eaf09be02..9857e17563c1 100644
--- a/clippy_lints/src/needless_bool.rs
+++ b/clippy_lints/src/needless_bool.rs
@@ -115,7 +115,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessBool {
 }
 
 fn parent_node_is_if_expr<'a, 'b>(expr: &Expr, cx: &LateContext<'a, 'b>) -> bool {
-    let parent_id = cx.tcx.hir().get_parent_node_by_hir_id(expr.hir_id);
+    let parent_id = cx.tcx.hir().get_parent_node(expr.hir_id);
     let parent_node = cx.tcx.hir().get(parent_id);
 
     if let rustc::hir::Node::Expr(e) = parent_node {
diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index 710c8975a1ef..84dd26647ba9 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -88,11 +88,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
         }
 
         // Exclude non-inherent impls
-        if let Some(Node::Item(item)) = cx
-            .tcx
-            .hir()
-            .find_by_hir_id(cx.tcx.hir().get_parent_node_by_hir_id(hir_id))
-        {
+        if let Some(Node::Item(item)) = cx.tcx.hir().find(cx.tcx.hir().get_parent_node(hir_id)) {
             if matches!(item.node, ItemKind::Impl(_, _, _, _, Some(_), _, _) |
                 ItemKind::Trait(..))
             {
@@ -357,14 +353,14 @@ impl<'a, 'tcx> MovedVariablesCtxt<'a, 'tcx> {
         if let mc::Categorization::Local(vid) = cmt.cat {
             let mut id = matched_pat.hir_id;
             loop {
-                let parent = self.cx.tcx.hir().get_parent_node_by_hir_id(id);
+                let parent = self.cx.tcx.hir().get_parent_node(id);
                 if id == parent {
                     // no parent
                     return;
                 }
                 id = parent;
 
-                if let Some(node) = self.cx.tcx.hir().find_by_hir_id(id) {
+                if let Some(node) = self.cx.tcx.hir().find(id) {
                     match node {
                         Node::Expr(e) => {
                             // `match` and `if let`
diff --git a/clippy_lints/src/non_copy_const.rs b/clippy_lints/src/non_copy_const.rs
index 832452a0e4d3..62e4f692ef8e 100644
--- a/clippy_lints/src/non_copy_const.rs
+++ b/clippy_lints/src/non_copy_const.rs
@@ -169,7 +169,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonCopyConst {
 
     fn check_impl_item(&mut self, cx: &LateContext<'a, 'tcx>, impl_item: &'tcx ImplItem) {
         if let ImplItemKind::Const(hir_ty, ..) = &impl_item.node {
-            let item_hir_id = cx.tcx.hir().get_parent_node_by_hir_id(impl_item.hir_id);
+            let item_hir_id = cx.tcx.hir().get_parent_node(impl_item.hir_id);
             let item = cx.tcx.hir().expect_item(item_hir_id);
             // Ensure the impl is an inherent impl.
             if let ItemKind::Impl(_, _, _, _, None, _, _) = item.node {
@@ -204,11 +204,11 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NonCopyConst {
             let mut dereferenced_expr = expr;
             let mut needs_check_adjustment = true;
             loop {
-                let parent_id = cx.tcx.hir().get_parent_node_by_hir_id(cur_expr.hir_id);
+                let parent_id = cx.tcx.hir().get_parent_node(cur_expr.hir_id);
                 if parent_id == cur_expr.hir_id {
                     break;
                 }
-                if let Some(Node::Expr(parent_expr)) = cx.tcx.hir().find_by_hir_id(parent_id) {
+                if let Some(Node::Expr(parent_expr)) = cx.tcx.hir().find(parent_id) {
                     match &parent_expr.node {
                         ExprKind::AddrOf(..) => {
                             // `&e` => `e` must be referenced.
diff --git a/clippy_lints/src/ptr.rs b/clippy_lints/src/ptr.rs
index af69d62ddb73..ff49ee952084 100644
--- a/clippy_lints/src/ptr.rs
+++ b/clippy_lints/src/ptr.rs
@@ -106,7 +106,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Ptr {
     fn check_impl_item(&mut self, cx: &LateContext<'a, 'tcx>, item: &'tcx ImplItem) {
         if let ImplItemKind::Method(ref sig, body_id) = item.node {
             let parent_item = cx.tcx.hir().get_parent_item(item.hir_id);
-            if let Some(Node::Item(it)) = cx.tcx.hir().find_by_hir_id(parent_item) {
+            if let Some(Node::Item(it)) = cx.tcx.hir().find(parent_item) {
                 if let ItemKind::Impl(_, _, _, _, Some(_), _, _) = it.node {
                     return; // ignore trait impls
                 }
diff --git a/clippy_lints/src/suspicious_trait_impl.rs b/clippy_lints/src/suspicious_trait_impl.rs
index 870805894656..0a70c77ae0a0 100644
--- a/clippy_lints/src/suspicious_trait_impl.rs
+++ b/clippy_lints/src/suspicious_trait_impl.rs
@@ -65,7 +65,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for SuspiciousImpl {
             }
             // Check if the binary expression is part of another bi/unary expression
             // as a child node
-            let mut parent_expr = cx.tcx.hir().get_parent_node_by_hir_id(expr.hir_id);
+            let mut parent_expr = cx.tcx.hir().get_parent_node(expr.hir_id);
             while parent_expr != hir::CRATE_HIR_ID {
                 if let hir::Node::Expr(e) = cx.tcx.hir().get(parent_expr) {
                     match e.node {
@@ -75,7 +75,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for SuspiciousImpl {
                         _ => {},
                     }
                 }
-                parent_expr = cx.tcx.hir().get_parent_node_by_hir_id(parent_expr);
+                parent_expr = cx.tcx.hir().get_parent_node(parent_expr);
             }
             // as a parent node
             let mut visitor = BinaryExprVisitor { in_binary_expr: false };
diff --git a/clippy_lints/src/trivially_copy_pass_by_ref.rs b/clippy_lints/src/trivially_copy_pass_by_ref.rs
index e4c4000c1262..83dcdc79c94f 100644
--- a/clippy_lints/src/trivially_copy_pass_by_ref.rs
+++ b/clippy_lints/src/trivially_copy_pass_by_ref.rs
@@ -179,11 +179,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for TriviallyCopyPassByRef {
         }
 
         // Exclude non-inherent impls
-        if let Some(Node::Item(item)) = cx
-            .tcx
-            .hir()
-            .find_by_hir_id(cx.tcx.hir().get_parent_node_by_hir_id(hir_id))
-        {
+        if let Some(Node::Item(item)) = cx.tcx.hir().find(cx.tcx.hir().get_parent_node(hir_id)) {
             if matches!(item.node, ItemKind::Impl(_, _, _, _, Some(_), _, _) |
                 ItemKind::Trait(..))
             {
diff --git a/clippy_lints/src/types.rs b/clippy_lints/src/types.rs
index f484dc798753..36a4b699fb6c 100644
--- a/clippy_lints/src/types.rs
+++ b/clippy_lints/src/types.rs
@@ -168,7 +168,7 @@ declare_lint_pass!(Types => [BOX_VEC, VEC_BOX, OPTION_OPTION, LINKEDLIST, BORROW
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Types {
     fn check_fn(&mut self, cx: &LateContext<'_, '_>, _: FnKind<'_>, decl: &FnDecl, _: &Body, _: Span, id: HirId) {
         // Skip trait implementations; see issue #605.
-        if let Some(hir::Node::Item(item)) = cx.tcx.hir().find_by_hir_id(cx.tcx.hir().get_parent_item(id)) {
+        if let Some(hir::Node::Item(item)) = cx.tcx.hir().find(cx.tcx.hir().get_parent_item(id)) {
             if let ItemKind::Impl(_, _, _, _, Some(..), _, _) = item.node {
                 return;
             }
@@ -585,7 +585,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnitArg {
         }
         if_chain! {
             let map = &cx.tcx.hir();
-            let opt_parent_node = map.find_by_hir_id(map.get_parent_node_by_hir_id(expr.hir_id));
+            let opt_parent_node = map.find(map.get_parent_node(expr.hir_id));
             if let Some(hir::Node::Expr(parent_expr)) = opt_parent_node;
             if is_questionmark_desugar_marked_call(parent_expr);
             then {
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index a12225e7e484..4647058ddfbb 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -404,7 +404,7 @@ pub fn is_entrypoint_fn(cx: &LateContext<'_, '_>, def_id: DefId) -> bool {
 /// Gets the name of the item the expression is in, if available.
 pub fn get_item_name(cx: &LateContext<'_, '_>, expr: &Expr) -> Option<Name> {
     let parent_id = cx.tcx.hir().get_parent_item(expr.hir_id);
-    match cx.tcx.hir().find_by_hir_id(parent_id) {
+    match cx.tcx.hir().find(parent_id) {
         Some(Node::Item(&Item { ref ident, .. })) => Some(ident.name),
         Some(Node::TraitItem(&TraitItem { ident, .. })) | Some(Node::ImplItem(&ImplItem { ident, .. })) => {
             Some(ident.name)
@@ -592,11 +592,11 @@ fn trim_multiline_inner(s: Cow<'_, str>, ignore_first: bool, ch: char) -> Cow<'_
 pub fn get_parent_expr<'c>(cx: &'c LateContext<'_, '_>, e: &Expr) -> Option<&'c Expr> {
     let map = &cx.tcx.hir();
     let hir_id = e.hir_id;
-    let parent_id = map.get_parent_node_by_hir_id(hir_id);
+    let parent_id = map.get_parent_node(hir_id);
     if hir_id == parent_id {
         return None;
     }
-    map.find_by_hir_id(parent_id).and_then(|node| {
+    map.find(parent_id).and_then(|node| {
         if let Node::Expr(parent) = node {
             Some(parent)
         } else {
@@ -609,7 +609,7 @@ pub fn get_enclosing_block<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, hir_id: HirId)
     let map = &cx.tcx.hir();
     let enclosing_node = map
         .get_enclosing_scope(hir_id)
-        .and_then(|enclosing_id| map.find_by_hir_id(enclosing_id));
+        .and_then(|enclosing_id| map.find(enclosing_id));
     if let Some(node) = enclosing_node {
         match node {
             Node::Block(block) => Some(block),