Auto merge of #6653 - flip1995:rustup, r=flip1995

Rustup

changelog: Deprecate `unknown_clippy_lints` (integrated in `unknown_lints`)

r? `@ghost`

41 files changed, 185 insertions, 239 deletions

diff --git a/clippy_lints/src/attrs.rs b/clippy_lints/src/attrs.rs
index 9a00fc535fc..652d1fa16b6 100644
--- a/clippy_lints/src/attrs.rs
+++ b/clippy_lints/src/attrs.rs
@@ -10,11 +10,10 @@ use rustc_errors::Applicability;
 use rustc_hir::{
     Block, Expr, ExprKind, ImplItem, ImplItemKind, Item, ItemKind, StmtKind, TraitFn, TraitItem, TraitItemKind,
 };
-use rustc_lint::{CheckLintNameResult, EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext};
+use rustc_lint::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext};
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
-use rustc_span::lev_distance::find_best_match_for_name;
 use rustc_span::source_map::Span;
 use rustc_span::sym;
 use rustc_span::symbol::{Symbol, SymbolStr};
@@ -157,33 +156,6 @@ declare_clippy_lint! {
 }
 
 declare_clippy_lint! {
-    /// **What it does:** Checks for `allow`/`warn`/`deny`/`forbid` attributes with scoped clippy
-    /// lints and if those lints exist in clippy. If there is an uppercase letter in the lint name
-    /// (not the tool name) and a lowercase version of this lint exists, it will suggest to lowercase
-    /// the lint name.
-    ///
-    /// **Why is this bad?** A lint attribute with a mistyped lint name won't have an effect.
-    ///
-    /// **Known problems:** None.
-    ///
-    /// **Example:**
-    /// Bad:
-    /// ```rust
-    /// #![warn(if_not_els)]
-    /// #![deny(clippy::All)]
-    /// ```
-    ///
-    /// Good:
-    /// ```rust
-    /// #![warn(if_not_else)]
-    /// #![deny(clippy::all)]
-    /// ```
-    pub UNKNOWN_CLIPPY_LINTS,
-    style,
-    "unknown_lints for scoped Clippy lints"
-}
-
-declare_clippy_lint! {
     /// **What it does:** Checks for `warn`/`deny`/`forbid` attributes targeting the whole clippy::restriction category.
     ///
     /// **Why is this bad?** Restriction lints sometimes are in contrast with other lints or even go against idiomatic rust.
@@ -272,7 +244,6 @@ declare_lint_pass!(Attributes => [
     INLINE_ALWAYS,
     DEPRECATED_SEMVER,
     USELESS_ATTRIBUTE,
-    UNKNOWN_CLIPPY_LINTS,
     BLANKET_CLIPPY_RESTRICTION_LINTS,
 ]);
 
@@ -409,48 +380,9 @@ fn extract_clippy_lint(lint: &NestedMetaItem) -> Option<SymbolStr> {
 }
 
 fn check_clippy_lint_names(cx: &LateContext<'_>, ident: &str, items: &[NestedMetaItem]) {
-    let lint_store = cx.lints();
     for lint in items {
         if let Some(lint_name) = extract_clippy_lint(lint) {
-            if let CheckLintNameResult::Tool(Err((None, _))) = lint_store.check_lint_name(&lint_name, Some(sym::clippy))
-            {
-                span_lint_and_then(
-                    cx,
-                    UNKNOWN_CLIPPY_LINTS,
-                    lint.span(),
-                    &format!("unknown clippy lint: clippy::{}", lint_name),
-                    |diag| {
-                        let name_lower = lint_name.to_lowercase();
-                        let symbols = lint_store
-                            .get_lints()
-                            .iter()
-                            .map(|l| Symbol::intern(&l.name_lower()))
-                            .collect::<Vec<_>>();
-                        let sugg = find_best_match_for_name(
-                            &symbols,
-                            Symbol::intern(&format!("clippy::{}", name_lower)),
-                            None,
-                        );
-                        if lint_name.chars().any(char::is_uppercase)
-                            && lint_store.find_lints(&format!("clippy::{}", name_lower)).is_ok()
-                        {
-                            diag.span_suggestion(
-                                lint.span(),
-                                "lowercase the lint name",
-                                format!("clippy::{}", name_lower),
-                                Applicability::MachineApplicable,
-                            );
-                        } else if let Some(sugg) = sugg {
-                            diag.span_suggestion(
-                                lint.span(),
-                                "did you mean",
-                                sugg.to_string(),
-                                Applicability::MachineApplicable,
-                            );
-                        }
-                    },
-                );
-            } else if lint_name == "restriction" && ident != "allow" {
+            if lint_name == "restriction" && ident != "allow" {
                 span_lint_and_help(
                     cx,
                     BLANKET_CLIPPY_RESTRICTION_LINTS,
diff --git a/clippy_lints/src/bytecount.rs b/clippy_lints/src/bytecount.rs
index 38a0e27c4cf..ac9098a7584 100644
--- a/clippy_lints/src/bytecount.rs
+++ b/clippy_lints/src/bytecount.rs
@@ -2,11 +2,10 @@ use crate::utils::{
     contains_name, get_pat_name, match_type, paths, single_segment_path, snippet_with_applicability, span_lint_and_sugg,
 };
 use if_chain::if_chain;
-use rustc_ast::ast::UintTy;
 use rustc_errors::Applicability;
 use rustc_hir::{BinOpKind, BorrowKind, Expr, ExprKind, UnOp};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty;
+use rustc_middle::ty::{self, UintTy};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::sym;
 use rustc_span::Symbol;
diff --git a/clippy_lints/src/consts.rs b/clippy_lints/src/consts.rs
index 166eadf86c1..640cffd24a7 100644
--- a/clippy_lints/src/consts.rs
+++ b/clippy_lints/src/consts.rs
@@ -2,14 +2,14 @@
 
 use crate::utils::{clip, sext, unsext};
 use if_chain::if_chain;
-use rustc_ast::ast::{FloatTy, LitFloatType, LitKind};
+use rustc_ast::ast::{self, LitFloatType, LitKind};
 use rustc_data_structures::sync::Lrc;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{BinOp, BinOpKind, Block, Expr, ExprKind, HirId, QPath, UnOp};
 use rustc_lint::LateContext;
 use rustc_middle::mir::interpret::Scalar;
 use rustc_middle::ty::subst::{Subst, SubstsRef};
-use rustc_middle::ty::{self, ScalarInt, Ty, TyCtxt};
+use rustc_middle::ty::{self, FloatTy, ScalarInt, Ty, TyCtxt};
 use rustc_middle::{bug, span_bug};
 use rustc_span::symbol::Symbol;
 use std::cmp::Ordering::{self, Equal};
@@ -167,8 +167,8 @@ pub fn lit_to_constant(lit: &LitKind, ty: Option<Ty<'_>>) -> Constant {
         LitKind::Char(c) => Constant::Char(c),
         LitKind::Int(n, _) => Constant::Int(n),
         LitKind::Float(ref is, LitFloatType::Suffixed(fty)) => match fty {
-            FloatTy::F32 => Constant::F32(is.as_str().parse().unwrap()),
-            FloatTy::F64 => Constant::F64(is.as_str().parse().unwrap()),
+            ast::FloatTy::F32 => Constant::F32(is.as_str().parse().unwrap()),
+            ast::FloatTy::F64 => Constant::F64(is.as_str().parse().unwrap()),
         },
         LitKind::Float(ref is, LitFloatType::Unsuffixed) => match ty.expect("type of float is known").kind() {
             ty::Float(FloatTy::F32) => Constant::F32(is.as_str().parse().unwrap()),
diff --git a/clippy_lints/src/default.rs b/clippy_lints/src/default.rs
index f7224811e6e..6fa1378b8c7 100644
--- a/clippy_lints/src/default.rs
+++ b/clippy_lints/src/default.rs
@@ -1,5 +1,5 @@
 use crate::utils::{
-    any_parent_is_automatically_derived, contains_name, match_def_path, paths, qpath_res, snippet_with_macro_callsite,
+    any_parent_is_automatically_derived, contains_name, match_def_path, paths, snippet_with_macro_callsite,
 };
 use crate::utils::{span_lint_and_note, span_lint_and_sugg};
 use if_chain::if_chain;
@@ -231,7 +231,7 @@ fn is_expr_default<'tcx>(expr: &'tcx Expr<'tcx>, cx: &LateContext<'tcx>) -> bool
     if_chain! {
         if let ExprKind::Call(ref fn_expr, _) = &expr.kind;
         if let ExprKind::Path(qpath) = &fn_expr.kind;
-        if let Res::Def(_, def_id) = qpath_res(cx, qpath, fn_expr.hir_id);
+        if let Res::Def(_, def_id) = cx.qpath_res(qpath, fn_expr.hir_id);
         then {
             // right hand side of assignment is `Default::default`
             match_def_path(cx, def_id, &paths::DEFAULT_TRAIT_METHOD)
diff --git a/clippy_lints/src/deprecated_lints.rs b/clippy_lints/src/deprecated_lints.rs
index ea386237f20..89088c533ed 100644
--- a/clippy_lints/src/deprecated_lints.rs
+++ b/clippy_lints/src/deprecated_lints.rs
@@ -163,11 +163,28 @@ declare_deprecated_lint! {
 }
 
 declare_deprecated_lint! {
+    /// **What it does:** Nothing. This lint has been deprecated.
+    ///
+    /// **Deprecation reason:** This lint has been uplifted to rustc and is now called
+    /// `panic_fmt`.
     pub PANIC_PARAMS,
     "this lint has been uplifted to rustc and is now called `panic_fmt`"
 }
 
 declare_deprecated_lint! {
+    /// **What it does:** Nothing. This lint has been deprecated.
+    ///
+    /// **Deprecation reason:** This lint has been integrated into the `unknown_lints`
+    /// rustc lint.
+    pub UNKNOWN_CLIPPY_LINTS,
+    "this lint has been integrated into the `unknown_lints` rustc lint"
+}
+
+declare_deprecated_lint! {
+    /// **What it does:** Nothing. This lint has been deprecated.
+    ///
+    /// **Deprecation reason:** This lint has been replaced by `manual_find_map`, a
+    /// more specific lint.
     pub FIND_MAP,
-    "this lint is replaced by `manual_find_map`, a more specific lint"
+    "this lint has been replaced by `manual_find_map`, a more specific lint"
 }
diff --git a/clippy_lints/src/doc.rs b/clippy_lints/src/doc.rs
index f518da55cd7..3a754f49917 100644
--- a/clippy_lints/src/doc.rs
+++ b/clippy_lints/src/doc.rs
@@ -12,6 +12,7 @@ use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty;
 use rustc_parse::maybe_new_parser_from_source_str;
+use rustc_parse::parser::ForceCollect;
 use rustc_session::parse::ParseSess;
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::edition::Edition;
@@ -483,7 +484,7 @@ fn check_code(cx: &LateContext<'_>, text: &str, edition: Edition, span: Span) {
 
                 let mut relevant_main_found = false;
                 loop {
-                    match parser.parse_item() {
+                    match parser.parse_item(ForceCollect::No) {
                         Ok(Some(item)) => match &item.kind {
                             // Tests with one of these items are ignored
                             ItemKind::Static(..)
diff --git a/clippy_lints/src/drop_forget_ref.rs b/clippy_lints/src/drop_forget_ref.rs
index cf528d189b4..a84f9c46287 100644
--- a/clippy_lints/src/drop_forget_ref.rs
+++ b/clippy_lints/src/drop_forget_ref.rs
@@ -1,4 +1,4 @@
-use crate::utils::{is_copy, match_def_path, paths, qpath_res, span_lint_and_note};
+use crate::utils::{is_copy, match_def_path, paths, span_lint_and_note};
 use if_chain::if_chain;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
@@ -114,7 +114,7 @@ impl<'tcx> LateLintPass<'tcx> for DropForgetRef {
             if let ExprKind::Call(ref path, ref args) = expr.kind;
             if let ExprKind::Path(ref qpath) = path.kind;
             if args.len() == 1;
-            if let Some(def_id) = qpath_res(cx, qpath, path.hir_id).opt_def_id();
+            if let Some(def_id) = cx.qpath_res(qpath, path.hir_id).opt_def_id();
             then {
                 let lint;
                 let msg;
diff --git a/clippy_lints/src/enum_clike.rs b/clippy_lints/src/enum_clike.rs
index fb80f48a9cc..aa235642ac3 100644
--- a/clippy_lints/src/enum_clike.rs
+++ b/clippy_lints/src/enum_clike.rs
@@ -3,11 +3,10 @@
 
 use crate::consts::{miri_to_const, Constant};
 use crate::utils::span_lint;
-use rustc_ast::ast::{IntTy, UintTy};
 use rustc_hir::{Item, ItemKind};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty;
 use rustc_middle::ty::util::IntTypeExt;
+use rustc_middle::ty::{self, IntTy, UintTy};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use std::convert::TryFrom;
 
diff --git a/clippy_lints/src/exit.rs b/clippy_lints/src/exit.rs
index 7337d98c8be..91585927000 100644
--- a/clippy_lints/src/exit.rs
+++ b/clippy_lints/src/exit.rs
@@ -1,4 +1,4 @@
-use crate::utils::{is_entrypoint_fn, match_def_path, paths, qpath_res, span_lint};
+use crate::utils::{is_entrypoint_fn, match_def_path, paths, span_lint};
 use if_chain::if_chain;
 use rustc_hir::{Expr, ExprKind, Item, ItemKind, Node};
 use rustc_lint::{LateContext, LateLintPass};
@@ -29,7 +29,7 @@ impl<'tcx> LateLintPass<'tcx> for Exit {
         if_chain! {
             if let ExprKind::Call(ref path_expr, ref _args) = e.kind;
             if let ExprKind::Path(ref path) = path_expr.kind;
-            if let Some(def_id) = qpath_res(cx, path, path_expr.hir_id).opt_def_id();
+            if let Some(def_id) = cx.qpath_res(path, path_expr.hir_id).opt_def_id();
             if match_def_path(cx, def_id, &paths::EXIT);
             then {
                 let parent = cx.tcx.hir().get_parent_item(e.hir_id);
diff --git a/clippy_lints/src/fallible_impl_from.rs b/clippy_lints/src/fallible_impl_from.rs
index 9f389c8d2f9..527905e375d 100644
--- a/clippy_lints/src/fallible_impl_from.rs
+++ b/clippy_lints/src/fallible_impl_from.rs
@@ -1,7 +1,4 @@
-use crate::utils::paths::FROM_TRAIT;
-use crate::utils::{
-    is_expn_of, is_type_diagnostic_item, match_def_path, match_panic_def_id, method_chain_args, span_lint_and_then,
-};
+use crate::utils::{is_expn_of, is_type_diagnostic_item, match_panic_def_id, method_chain_args, span_lint_and_then};
 use if_chain::if_chain;
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass};
@@ -59,7 +56,7 @@ impl<'tcx> LateLintPass<'tcx> for FallibleImplFrom {
         if_chain! {
             if let hir::ItemKind::Impl(impl_) = &item.kind;
             if let Some(impl_trait_ref) = cx.tcx.impl_trait_ref(impl_def_id);
-            if match_def_path(cx, impl_trait_ref.def_id, &FROM_TRAIT);
+            if cx.tcx.is_diagnostic_item(sym::from_trait, impl_trait_ref.def_id);
             then {
                 lint_impl_body(cx, item.span, impl_.items);
             }
diff --git a/clippy_lints/src/float_literal.rs b/clippy_lints/src/float_literal.rs
index 1fe4461533b..be646cbe4d0 100644
--- a/clippy_lints/src/float_literal.rs
+++ b/clippy_lints/src/float_literal.rs
@@ -1,10 +1,10 @@
 use crate::utils::{numeric_literal, span_lint_and_sugg};
 use if_chain::if_chain;
-use rustc_ast::ast::{FloatTy, LitFloatType, LitKind};
+use rustc_ast::ast::{self, LitFloatType, LitKind};
 use rustc_errors::Applicability;
 use rustc_hir as hir;
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty;
+use rustc_middle::ty::{self, FloatTy};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use std::fmt;
 
@@ -75,8 +75,8 @@ impl<'tcx> LateLintPass<'tcx> for FloatLiteral {
                 let digits = count_digits(&sym_str);
                 let max = max_digits(fty);
                 let type_suffix = match lit_float_ty {
-                    LitFloatType::Suffixed(FloatTy::F32) => Some("f32"),
-                    LitFloatType::Suffixed(FloatTy::F64) => Some("f64"),
+                    LitFloatType::Suffixed(ast::FloatTy::F32) => Some("f32"),
+                    LitFloatType::Suffixed(ast::FloatTy::F64) => Some("f64"),
                     LitFloatType::Unsuffixed => None
                 };
                 let (is_whole, mut float_str) = match fty {
diff --git a/clippy_lints/src/functions.rs b/clippy_lints/src/functions.rs
index fd93548b55c..87954254610 100644
--- a/clippy_lints/src/functions.rs
+++ b/clippy_lints/src/functions.rs
@@ -1,7 +1,7 @@
 use crate::utils::{
     attr_by_name, attrs::is_proc_macro, is_must_use_ty, is_trait_impl_item, is_type_diagnostic_item, iter_input_pats,
-    last_path_segment, match_def_path, must_use_attr, qpath_res, return_ty, snippet, snippet_opt, span_lint,
-    span_lint_and_help, span_lint_and_then, trait_ref_of_method, type_is_unsafe_function,
+    last_path_segment, match_def_path, must_use_attr, return_ty, snippet, snippet_opt, span_lint, span_lint_and_help,
+    span_lint_and_then, trait_ref_of_method, type_is_unsafe_function,
 };
 use if_chain::if_chain;
 use rustc_ast::ast::Attribute;
@@ -659,7 +659,7 @@ impl<'a, 'tcx> intravisit::Visitor<'tcx> for DerefVisitor<'a, 'tcx> {
 impl<'a, 'tcx> DerefVisitor<'a, 'tcx> {
     fn check_arg(&self, ptr: &hir::Expr<'_>) {
         if let hir::ExprKind::Path(ref qpath) = ptr.kind {
-            if let Res::Local(id) = qpath_res(self.cx, qpath, ptr.hir_id) {
+            if let Res::Local(id) = self.cx.qpath_res(qpath, ptr.hir_id) {
                 if self.ptrs.contains(&id) {
                     span_lint(
                         self.cx,
@@ -722,7 +722,7 @@ fn is_mutated_static(cx: &LateContext<'_>, e: &hir::Expr<'_>) -> bool {
     use hir::ExprKind::{Field, Index, Path};
 
     match e.kind {
-        Path(ref qpath) => !matches!(qpath_res(cx, qpath, e.hir_id), Res::Local(_)),
+        Path(ref qpath) => !matches!(cx.qpath_res(qpath, e.hir_id), Res::Local(_)),
         Field(ref inner, _) | Index(ref inner, _) => is_mutated_static(cx, inner),
         _ => false,
     }
diff --git a/clippy_lints/src/future_not_send.rs b/clippy_lints/src/future_not_send.rs
index eb5857348fd..7208e66ff7b 100644
--- a/clippy_lints/src/future_not_send.rs
+++ b/clippy_lints/src/future_not_send.rs
@@ -4,7 +4,7 @@ use rustc_hir::{Body, FnDecl, HirId};
 use rustc_infer::infer::TyCtxtInferExt;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::subst::Subst;
-use rustc_middle::ty::{Opaque, PredicateAtom::Trait};
+use rustc_middle::ty::{Opaque, PredicateKind::Trait};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::{sym, Span};
 use rustc_trait_selection::traits::error_reporting::suggestions::InferCtxtExt;
@@ -93,7 +93,7 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend {
                             cx.tcx.infer_ctxt().enter(|infcx| {
                                 for FulfillmentError { obligation, .. } in send_errors {
                                     infcx.maybe_note_obligation_cause_for_async_await(db, &obligation);
-                                    if let Trait(trait_pred, _) = obligation.predicate.skip_binders() {
+                                    if let Trait(trait_pred, _) = obligation.predicate.kind().skip_binder() {
                                         db.note(&format!(
                                             "`{}` doesn't implement `{}`",
                                             trait_pred.self_ty(),
diff --git a/clippy_lints/src/let_if_seq.rs b/clippy_lints/src/let_if_seq.rs
index db717cd1240..5886c2360e3 100644
--- a/clippy_lints/src/let_if_seq.rs
+++ b/clippy_lints/src/let_if_seq.rs
@@ -1,4 +1,4 @@
-use crate::utils::{qpath_res, snippet, span_lint_and_then, visitors::LocalUsedVisitor};
+use crate::utils::{snippet, span_lint_and_then, visitors::LocalUsedVisitor};
 use if_chain::if_chain;
 use rustc_errors::Applicability;
 use rustc_hir as hir;
@@ -145,7 +145,7 @@ fn check_assign<'tcx>(
         if let hir::StmtKind::Semi(ref expr) = expr.kind;
         if let hir::ExprKind::Assign(ref var, ref value, _) = expr.kind;
         if let hir::ExprKind::Path(ref qpath) = var.kind;
-        if let Res::Local(local_id) = qpath_res(cx, qpath, var.hir_id);
+        if let Res::Local(local_id) = cx.qpath_res(qpath, var.hir_id);
         if decl == local_id;
         then {
             let mut v = LocalUsedVisitor::new(decl);
diff --git a/clippy_lints/src/lib.rs b/clippy_lints/src/lib.rs
index 4c889b8a8bb..54007c29c6c 100644
--- a/clippy_lints/src/lib.rs
+++ b/clippy_lints/src/lib.rs
@@ -507,8 +507,12 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         "this lint has been uplifted to rustc and is now called `panic_fmt`",
     );
     store.register_removed(
+        "clippy::unknown_clippy_lints",
+        "this lint has been integrated into the `unknown_lints` rustc lint",
+    );
+    store.register_removed(
         "clippy::find_map",
-        "this lint is replaced by `manual_find_map`, a more specific lint",
+        "this lint has been replaced by `manual_find_map`, a more specific lint",
     );
     // end deprecated lints, do not remove this comment, it’s used in `update_lints`
 
@@ -553,7 +557,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         &attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
         &attrs::INLINE_ALWAYS,
         &attrs::MISMATCHED_TARGET_OS,
-        &attrs::UNKNOWN_CLIPPY_LINTS,
         &attrs::USELESS_ATTRIBUTE,
         &await_holding_invalid::AWAIT_HOLDING_LOCK,
         &await_holding_invalid::AWAIT_HOLDING_REFCELL_REF,
@@ -1409,7 +1412,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         LintId::of(&attrs::DEPRECATED_CFG_ATTR),
         LintId::of(&attrs::DEPRECATED_SEMVER),
         LintId::of(&attrs::MISMATCHED_TARGET_OS),
-        LintId::of(&attrs::UNKNOWN_CLIPPY_LINTS),
         LintId::of(&attrs::USELESS_ATTRIBUTE),
         LintId::of(&bit_mask::BAD_BIT_MASK),
         LintId::of(&bit_mask::INEFFECTIVE_BIT_MASK),
@@ -1692,7 +1694,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         LintId::of(&assertions_on_constants::ASSERTIONS_ON_CONSTANTS),
         LintId::of(&assign_ops::ASSIGN_OP_PATTERN),
         LintId::of(&attrs::BLANKET_CLIPPY_RESTRICTION_LINTS),
-        LintId::of(&attrs::UNKNOWN_CLIPPY_LINTS),
         LintId::of(&blacklisted_name::BLACKLISTED_NAME),
         LintId::of(&blocks_in_if_conditions::BLOCKS_IN_IF_CONDITIONS),
         LintId::of(&collapsible_if::COLLAPSIBLE_ELSE_IF),
diff --git a/clippy_lints/src/loops.rs b/clippy_lints/src/loops.rs
index c7e1088e353..5211ca7da32 100644
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@@ -6,9 +6,9 @@ use crate::utils::visitors::LocalUsedVisitor;
 use crate::utils::{
     contains_name, get_enclosing_block, get_parent_expr, get_trait_def_id, has_iter_method, higher, implements_trait,
     indent_of, is_in_panic_handler, is_integer_const, is_no_std_crate, is_refutable, is_type_diagnostic_item,
-    last_path_segment, match_trait_method, match_type, match_var, multispan_sugg, qpath_res, single_segment_path,
-    snippet, snippet_with_applicability, snippet_with_macro_callsite, span_lint, span_lint_and_help,
-    span_lint_and_sugg, span_lint_and_then, sugg, SpanlessEq,
+    last_path_segment, match_trait_method, match_type, match_var, multispan_sugg, single_segment_path, snippet,
+    snippet_with_applicability, snippet_with_macro_callsite, span_lint, span_lint_and_help, span_lint_and_sugg,
+    span_lint_and_then, sugg, SpanlessEq,
 };
 use if_chain::if_chain;
 use rustc_ast::ast;
@@ -533,7 +533,7 @@ impl<'tcx> LateLintPass<'tcx> for Loops {
         }
 
         // check for never_loop
-        if let ExprKind::Loop(ref block, _, _) = expr.kind {
+        if let ExprKind::Loop(ref block, _, _, _) = expr.kind {
             match never_loop_block(block, expr.hir_id) {
                 NeverLoopResult::AlwaysBreak => span_lint(cx, NEVER_LOOP, expr.span, "this loop never actually loops"),
                 NeverLoopResult::MayContinueMainLoop | NeverLoopResult::Otherwise => (),
@@ -543,7 +543,7 @@ impl<'tcx> LateLintPass<'tcx> for Loops {
         // check for `loop { if let {} else break }` that could be `while let`
         // (also matches an explicit "match" instead of "if let")
         // (even if the "match" or "if let" is used for declaration)
-        if let ExprKind::Loop(ref block, _, LoopSource::Loop) = expr.kind {
+        if let ExprKind::Loop(ref block, _, LoopSource::Loop, _) = expr.kind {
             // also check for empty `loop {}` statements, skipping those in #[panic_handler]
             if block.stmts.is_empty() && block.expr.is_none() && !is_in_panic_handler(cx, expr) {
                 let msg = "empty `loop {}` wastes CPU cycles";
@@ -738,7 +738,7 @@ fn never_loop_expr(expr: &Expr<'_>, main_loop_id: HirId) -> NeverLoopResult {
         | ExprKind::Assign(ref e1, ref e2, _)
         | ExprKind::AssignOp(_, ref e1, ref e2)
         | ExprKind::Index(ref e1, ref e2) => never_loop_expr_all(&mut [&**e1, &**e2].iter().cloned(), main_loop_id),
-        ExprKind::Loop(ref b, _, _) => {
+        ExprKind::Loop(ref b, _, _, _) => {
             // Break can come from the inner loop so remove them.
             absorb_break(&never_loop_block(b, main_loop_id))
         },
@@ -848,7 +848,7 @@ fn same_var<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>, var: HirId) -> bool {
         if let ExprKind::Path(qpath) = &expr.kind;
         if let QPath::Resolved(None, path) = qpath;
         if path.segments.len() == 1;
-        if let Res::Local(local_id) = qpath_res(cx, qpath, expr.hir_id);
+        if let Res::Local(local_id) = cx.qpath_res(qpath, expr.hir_id);
         then {
             // our variable!
             local_id == var
@@ -1313,7 +1313,7 @@ impl<'a, 'tcx> Visitor<'tcx> for SameItemPushVisitor<'a, 'tcx> {
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
         match &expr.kind {
             // Non-determinism may occur ... don't give a lint
-            ExprKind::Loop(_, _, _) | ExprKind::Match(_, _, _) => self.should_lint = false,
+            ExprKind::Loop(..) | ExprKind::Match(..) => self.should_lint = false,
             ExprKind::Block(block, _) => self.visit_block(block),
             _ => {},
         }
@@ -1419,7 +1419,7 @@ fn detect_same_item_push<'tcx>(
                 // Make sure that the push does not involve possibly mutating values
                 match pushed_item.kind {
                     ExprKind::Path(ref qpath) => {
-                        match qpath_res(cx, qpath, pushed_item.hir_id) {
+                        match cx.qpath_res(qpath, pushed_item.hir_id) {
                             // immutable bindings that are initialized with literal or constant
                             Res::Local(hir_id) => {
                                 if_chain! {
@@ -1436,7 +1436,7 @@ fn detect_same_item_push<'tcx>(
                                             ExprKind::Lit(..) => emit_lint(cx, vec, pushed_item),
                                             // immutable bindings that are initialized with constant
                                             ExprKind::Path(ref path) => {
-                                                if let Res::Def(DefKind::Const, ..) = qpath_res(cx, path, init.hir_id) {
+                                                if let Res::Def(DefKind::Const, ..) = cx.qpath_res(path, init.hir_id) {
                                                     emit_lint(cx, vec, pushed_item);
                                                 }
                                             }
@@ -2027,7 +2027,7 @@ fn check_for_mutability(cx: &LateContext<'_>, bound: &Expr<'_>) -> Option<HirId>
         if let ExprKind::Path(ref qpath) = bound.kind;
         if let QPath::Resolved(None, _) = *qpath;
         then {
-            let res = qpath_res(cx, qpath, bound.hir_id);
+            let res = cx.qpath_res(qpath, bound.hir_id);
             if let Res::Local(hir_id) = res {
                 let node_str = cx.tcx.hir().get(hir_id);
                 if_chain! {
@@ -2119,7 +2119,7 @@ impl<'a, 'tcx> VarVisitor<'a, 'tcx> {
                     if self.prefer_mutable {
                         self.indexed_mut.insert(seqvar.segments[0].ident.name);
                     }
-                    let res = qpath_res(self.cx, seqpath, seqexpr.hir_id);
+                    let res = self.cx.qpath_res(seqpath, seqexpr.hir_id);
                     match res {
                         Res::Local(hir_id) => {
                             let parent_id = self.cx.tcx.hir().get_parent_item(expr.hir_id);
@@ -2183,7 +2183,7 @@ impl<'a, 'tcx> Visitor<'tcx> for VarVisitor<'a, 'tcx> {
             if let QPath::Resolved(None, ref path) = *qpath;
             if path.segments.len() == 1;
             then {
-                if let Res::Local(local_id) = qpath_res(self.cx, qpath, expr.hir_id) {
+                if let Res::Local(local_id) = self.cx.qpath_res(qpath, expr.hir_id) {
                     if local_id == self.var {
                         self.nonindex = true;
                     } else {
@@ -2588,7 +2588,7 @@ impl<'a, 'tcx> Visitor<'tcx> for InitializeVisitor<'a, 'tcx> {
 
 fn var_def_id(cx: &LateContext<'_>, expr: &Expr<'_>) -> Option<HirId> {
     if let ExprKind::Path(ref qpath) = expr.kind {
-        let path_res = qpath_res(cx, qpath, expr.hir_id);
+        let path_res = cx.qpath_res(qpath, expr.hir_id);
         if let Res::Local(hir_id) = path_res {
             return Some(hir_id);
         }
@@ -2818,7 +2818,7 @@ impl<'a, 'tcx> VarCollectorVisitor<'a, 'tcx> {
         if_chain! {
             if let ExprKind::Path(ref qpath) = ex.kind;
             if let QPath::Resolved(None, _) = *qpath;
-            let res = qpath_res(self.cx, qpath, ex.hir_id);
+            let res = self.cx.qpath_res(qpath, ex.hir_id);
             then {
                 match res {
                     Res::Local(hir_id) => {
diff --git a/clippy_lints/src/manual_strip.rs b/clippy_lints/src/manual_strip.rs
index a0cfe145a30..42a92104a49 100644
--- a/clippy_lints/src/manual_strip.rs
+++ b/clippy_lints/src/manual_strip.rs
@@ -1,7 +1,7 @@
 use crate::consts::{constant, Constant};
 use crate::utils::usage::mutated_variables;
 use crate::utils::{
-    eq_expr_value, higher, match_def_path, meets_msrv, multispan_sugg, paths, qpath_res, snippet, span_lint_and_then,
+    eq_expr_value, higher, match_def_path, meets_msrv, multispan_sugg, paths, snippet, span_lint_and_then,
 };
 
 use if_chain::if_chain;
@@ -92,7 +92,7 @@ impl<'tcx> LateLintPass<'tcx> for ManualStrip {
                 } else {
                     return;
                 };
-                let target_res = qpath_res(cx, &target_path, target_arg.hir_id);
+                let target_res = cx.qpath_res(&target_path, target_arg.hir_id);
                 if target_res == Res::Err {
                     return;
                 };
@@ -221,7 +221,7 @@ fn find_stripping<'tcx>(
                 if let ExprKind::Index(indexed, index) = &unref.kind;
                 if let Some(higher::Range { start, end, .. }) = higher::range(index);
                 if let ExprKind::Path(path) = &indexed.kind;
-                if qpath_res(self.cx, path, ex.hir_id) == self.target;
+                if self.cx.qpath_res(path, ex.hir_id) == self.target;
                 then {
                     match (self.strip_kind, start, end) {
                         (StripKind::Prefix, Some(start), None) => {
@@ -235,7 +235,7 @@ fn find_stripping<'tcx>(
                                 if let ExprKind::Binary(Spanned { node: BinOpKind::Sub, .. }, left, right) = end.kind;
                                 if let Some(left_arg) = len_arg(self.cx, left);
                                 if let ExprKind::Path(left_path) = &left_arg.kind;
-                                if qpath_res(self.cx, left_path, left_arg.hir_id) == self.target;
+                                if self.cx.qpath_res(left_path, left_arg.hir_id) == self.target;
                                 if eq_pattern_length(self.cx, self.pattern, right);
                                 then {
                                     self.results.push(ex.span);
diff --git a/clippy_lints/src/mem_forget.rs b/clippy_lints/src/mem_forget.rs
index 8c6fd10f98a..d34f9761e26 100644
--- a/clippy_lints/src/mem_forget.rs
+++ b/clippy_lints/src/mem_forget.rs
@@ -1,4 +1,4 @@
-use crate::utils::{match_def_path, paths, qpath_res, span_lint};
+use crate::utils::{match_def_path, paths, span_lint};
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
@@ -29,7 +29,7 @@ impl<'tcx> LateLintPass<'tcx> for MemForget {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) {
         if let ExprKind::Call(ref path_expr, ref args) = e.kind {
             if let ExprKind::Path(ref qpath) = path_expr.kind {
-                if let Some(def_id) = qpath_res(cx, qpath, path_expr.hir_id).opt_def_id() {
+                if let Some(def_id) = cx.qpath_res(qpath, path_expr.hir_id).opt_def_id() {
                     if match_def_path(cx, def_id, &paths::MEM_FORGET) {
                         let forgot_ty = cx.typeck_results().expr_ty(&args[0]);
 
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
index 7a459a440ca..a17c5996293 100644
--- a/clippy_lints/src/methods/mod.rs
+++ b/clippy_lints/src/methods/mod.rs
@@ -1762,7 +1762,7 @@ impl<'tcx> LateLintPass<'tcx> for Methods {
             if let ty::Opaque(def_id, _) = *ret_ty.kind() {
                 // one of the associated types must be Self
                 for &(predicate, _span) in cx.tcx.explicit_item_bounds(def_id) {
-                    if let ty::PredicateAtom::Projection(projection_predicate) = predicate.skip_binders() {
+                    if let ty::PredicateKind::Projection(projection_predicate) = predicate.kind().skip_binder() {
                         // walk the associated type and check for Self
                         if contains_ty(projection_predicate.ty, self_ty) {
                             return;
diff --git a/clippy_lints/src/mutex_atomic.rs b/clippy_lints/src/mutex_atomic.rs
index ea986874291..40b236493a3 100644
--- a/clippy_lints/src/mutex_atomic.rs
+++ b/clippy_lints/src/mutex_atomic.rs
@@ -3,7 +3,6 @@
 //! This lint is **warn** by default
 
 use crate::utils::{is_type_diagnostic_item, span_lint};
-use rustc_ast::ast;
 use rustc_hir::Expr;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::{self, Ty};
@@ -77,8 +76,8 @@ impl<'tcx> LateLintPass<'tcx> for Mutex {
                         atomic_name
                     );
                     match *mutex_param.kind() {
-                        ty::Uint(t) if t != ast::UintTy::Usize => span_lint(cx, MUTEX_INTEGER, expr.span, &msg),
-                        ty::Int(t) if t != ast::IntTy::Isize => span_lint(cx, MUTEX_INTEGER, expr.span, &msg),
+                        ty::Uint(t) if t != ty::UintTy::Usize => span_lint(cx, MUTEX_INTEGER, expr.span, &msg),
+                        ty::Int(t) if t != ty::IntTy::Isize => span_lint(cx, MUTEX_INTEGER, expr.span, &msg),
                         _ => span_lint(cx, MUTEX_ATOMIC, expr.span, &msg),
                     };
                 }
diff --git a/clippy_lints/src/needless_continue.rs b/clippy_lints/src/needless_continue.rs
index a971d041ca6..603071a5f4a 100644
--- a/clippy_lints/src/needless_continue.rs
+++ b/clippy_lints/src/needless_continue.rs
@@ -221,7 +221,7 @@ where
 {
     if let ast::ExprKind::While(_, loop_block, label)
     | ast::ExprKind::ForLoop(_, _, loop_block, label)
-    | ast::ExprKind::Loop(loop_block, label) = &expr.kind
+    | ast::ExprKind::Loop(loop_block, label, ..) = &expr.kind
     {
         func(loop_block, label.as_ref());
     }
diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index c8f89f8046c..54033f40871 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -116,13 +116,9 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
             .filter(|p| !p.is_global())
             .filter_map(|obligation| {
                 // Note that we do not want to deal with qualified predicates here.
-                if let ty::PredicateKind::Atom(ty::PredicateAtom::Trait(pred, _)) = obligation.predicate.kind() {
-                    if pred.def_id() == sized_trait {
-                        return None;
-                    }
-                    Some(pred)
-                } else {
-                    None
+                match obligation.predicate.kind().no_bound_vars() {
+                    Some(ty::PredicateKind::Trait(pred, _)) if pred.def_id() != sized_trait => Some(pred),
+                    _ => None,
                 }
             })
             .collect::<Vec<_>>();
diff --git a/clippy_lints/src/no_effect.rs b/clippy_lints/src/no_effect.rs
index b1b5b3439a0..69302d695ce 100644
--- a/clippy_lints/src/no_effect.rs
+++ b/clippy_lints/src/no_effect.rs
@@ -1,4 +1,4 @@
-use crate::utils::{has_drop, qpath_res, snippet_opt, span_lint, span_lint_and_sugg};
+use crate::utils::{has_drop, snippet_opt, span_lint, span_lint_and_sugg};
 use rustc_errors::Applicability;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{BinOpKind, BlockCheckMode, Expr, ExprKind, Stmt, StmtKind, UnsafeSource};
@@ -67,7 +67,7 @@ fn has_no_effect(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
         },
         ExprKind::Call(ref callee, ref args) => {
             if let ExprKind::Path(ref qpath) = callee.kind {
-                let res = qpath_res(cx, qpath, callee.hir_id);
+                let res = cx.qpath_res(qpath, callee.hir_id);
                 match res {
                     Res::Def(DefKind::Struct | DefKind::Variant | DefKind::Ctor(..), ..) => {
                         !has_drop(cx, cx.typeck_results().expr_ty(expr))
@@ -146,7 +146,7 @@ fn reduce_expression<'a>(cx: &LateContext<'_>, expr: &'a Expr<'a>) -> Option<Vec
         },
         ExprKind::Call(ref callee, ref args) => {
             if let ExprKind::Path(ref qpath) = callee.kind {
-                let res = qpath_res(cx, qpath, callee.hir_id);
+                let res = cx.qpath_res(qpath, callee.hir_id);
                 match res {
                     Res::Def(DefKind::Struct | DefKind::Variant | DefKind::Ctor(..), ..)
                         if !has_drop(cx, cx.typeck_results().expr_ty(expr)) =>
diff --git a/clippy_lints/src/non_copy_const.rs b/clippy_lints/src/non_copy_const.rs
index 3a9aa6ced03..f57d7536317 100644
--- a/clippy_lints/src/non_copy_const.rs
+++ b/clippy_lints/src/non_copy_const.rs
@@ -18,7 +18,7 @@ use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::{InnerSpan, Span, DUMMY_SP};
 use rustc_typeck::hir_ty_to_ty;
 
-use crate::utils::{in_constant, qpath_res, span_lint_and_then};
+use crate::utils::{in_constant, span_lint_and_then};
 use if_chain::if_chain;
 
 // FIXME: this is a correctness problem but there's no suitable
@@ -339,7 +339,7 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst {
             }
 
             // Make sure it is a const item.
-            let item_def_id = match qpath_res(cx, qpath, expr.hir_id) {
+            let item_def_id = match cx.qpath_res(qpath, expr.hir_id) {
                 Res::Def(DefKind::Const | DefKind::AssocConst, did) => did,
                 _ => return,
             };
diff --git a/clippy_lints/src/shadow.rs b/clippy_lints/src/shadow.rs
index 24da056770c..d5b1767e945 100644
--- a/clippy_lints/src/shadow.rs
+++ b/clippy_lints/src/shadow.rs
@@ -325,7 +325,7 @@ fn check_expr<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>, bindings: &mut
         | ExprKind::Field(ref e, _)
         | ExprKind::AddrOf(_, _, ref e)
         | ExprKind::Box(ref e) => check_expr(cx, e, bindings),
-        ExprKind::Block(ref block, _) | ExprKind::Loop(ref block, _, _) => check_block(cx, block, bindings),
+        ExprKind::Block(ref block, _) | ExprKind::Loop(ref block, ..) => check_block(cx, block, bindings),
         // ExprKind::Call
         // ExprKind::MethodCall
         ExprKind::Array(v) | ExprKind::Tup(v) => {
diff --git a/clippy_lints/src/to_string_in_display.rs b/clippy_lints/src/to_string_in_display.rs
index c53727ba160..fa508df865e 100644
--- a/clippy_lints/src/to_string_in_display.rs
+++ b/clippy_lints/src/to_string_in_display.rs
@@ -1,4 +1,4 @@
-use crate::utils::{match_def_path, match_trait_method, paths, qpath_res, span_lint};
+use crate::utils::{match_def_path, match_trait_method, paths, span_lint};
 use if_chain::if_chain;
 use rustc_hir::def::Res;
 use rustc_hir::{Expr, ExprKind, HirId, Impl, ImplItem, ImplItemKind, Item, ItemKind};
@@ -94,7 +94,7 @@ impl LateLintPass<'_> for ToStringInDisplay {
             if match_trait_method(cx, expr, &paths::TO_STRING);
             if self.in_display_impl;
             if let ExprKind::Path(ref qpath) = args[0].kind;
-            if let Res::Local(hir_id) = qpath_res(cx, qpath, args[0].hir_id);
+            if let Res::Local(hir_id) = cx.qpath_res(qpath, args[0].hir_id);
             if let Some(self_hir_id) = self.self_hir_id;
             if hir_id == self_hir_id;
             then {
diff --git a/clippy_lints/src/transmute.rs b/clippy_lints/src/transmute.rs
index b0909f73177..d977cea4da5 100644
--- a/clippy_lints/src/transmute.rs
+++ b/clippy_lints/src/transmute.rs
@@ -443,7 +443,7 @@ impl<'tcx> LateLintPass<'tcx> for Transmute {
                             );
                         },
                     ),
-                    (ty::Int(ast::IntTy::I32) | ty::Uint(ast::UintTy::U32), &ty::Char) => {
+                    (ty::Int(ty::IntTy::I32) | ty::Uint(ty::UintTy::U32), &ty::Char) => {
                         span_lint_and_then(
                             cx,
                             TRANSMUTE_INT_TO_CHAR,
@@ -468,7 +468,7 @@ impl<'tcx> LateLintPass<'tcx> for Transmute {
                     (ty::Ref(_, ty_from, from_mutbl), ty::Ref(_, ty_to, to_mutbl)) => {
                         if_chain! {
                             if let (&ty::Slice(slice_ty), &ty::Str) = (&ty_from.kind(), &ty_to.kind());
-                            if let ty::Uint(ast::UintTy::U8) = slice_ty.kind();
+                            if let ty::Uint(ty::UintTy::U8) = slice_ty.kind();
                             if from_mutbl == to_mutbl;
                             then {
                                 let postfix = if *from_mutbl == Mutability::Mut {
@@ -536,7 +536,7 @@ impl<'tcx> LateLintPass<'tcx> for Transmute {
                             }
                         },
                     ),
-                    (ty::Int(ast::IntTy::I8) | ty::Uint(ast::UintTy::U8), ty::Bool) => {
+                    (ty::Int(ty::IntTy::I8) | ty::Uint(ty::UintTy::U8), ty::Bool) => {
                         span_lint_and_then(
                             cx,
                             TRANSMUTE_INT_TO_BOOL,
diff --git a/clippy_lints/src/types.rs b/clippy_lints/src/types.rs
index 3b5a83d2a0b..1b0f1e309aa 100644
--- a/clippy_lints/src/types.rs
+++ b/clippy_lints/src/types.rs
@@ -5,7 +5,7 @@ use std::cmp::Ordering;
 use std::collections::BTreeMap;
 
 use if_chain::if_chain;
-use rustc_ast::{FloatTy, IntTy, LitFloatType, LitIntType, LitKind, UintTy};
+use rustc_ast::{LitFloatType, LitIntType, LitKind};
 use rustc_errors::{Applicability, DiagnosticBuilder};
 use rustc_hir as hir;
 use rustc_hir::intravisit::{walk_body, walk_expr, walk_ty, FnKind, NestedVisitorMap, Visitor};
@@ -18,7 +18,7 @@ use rustc_lint::{LateContext, LateLintPass, LintContext};
 use rustc_middle::hir::map::Map;
 use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty::TypeFoldable;
-use rustc_middle::ty::{self, InferTy, Ty, TyCtxt, TyS, TypeAndMut, TypeckResults};
+use rustc_middle::ty::{self, FloatTy, InferTy, IntTy, Ty, TyCtxt, TyS, TypeAndMut, TypeckResults, UintTy};
 use rustc_semver::RustcVersion;
 use rustc_session::{declare_lint_pass, declare_tool_lint, impl_lint_pass};
 use rustc_span::hygiene::{ExpnKind, MacroKind};
@@ -34,7 +34,7 @@ use crate::utils::sugg::Sugg;
 use crate::utils::{
     clip, comparisons, differing_macro_contexts, higher, in_constant, indent_of, int_bits, is_hir_ty_cfg_dependant,
     is_type_diagnostic_item, last_path_segment, match_def_path, match_path, meets_msrv, method_chain_args,
-    multispan_sugg, numeric_literal::NumericLiteral, qpath_res, reindent_multiline, sext, snippet, snippet_opt,
+    multispan_sugg, numeric_literal::NumericLiteral, reindent_multiline, sext, snippet, snippet_opt,
     snippet_with_applicability, snippet_with_macro_callsite, span_lint, span_lint_and_help, span_lint_and_sugg,
     span_lint_and_then, unsext,
 };
@@ -298,7 +298,7 @@ fn match_type_parameter(cx: &LateContext<'_>, qpath: &QPath<'_>, path: &[&str])
             _ => None,
         });
         if let TyKind::Path(ref qpath) = ty.kind;
-        if let Some(did) = qpath_res(cx, qpath, ty.hir_id).opt_def_id();
+        if let Some(did) = cx.qpath_res(qpath, ty.hir_id).opt_def_id();
         if match_def_path(cx, did, path);
         then {
             return Some(ty.span);
@@ -365,7 +365,7 @@ impl Types {
         match hir_ty.kind {
             TyKind::Path(ref qpath) if !is_local => {
                 let hir_id = hir_ty.hir_id;
-                let res = qpath_res(cx, qpath, hir_id);
+                let res = cx.qpath_res(qpath, hir_id);
                 if let Some(def_id) = res.opt_def_id() {
                     if Some(def_id) == cx.tcx.lang_items().owned_box() {
                         if let Some(span) = match_borrows_parameter(cx, qpath) {
@@ -535,7 +535,7 @@ impl Types {
                             });
                             // ty is now _ at this point
                             if let TyKind::Path(ref ty_qpath) = ty.kind;
-                            let res = qpath_res(cx, ty_qpath, ty.hir_id);
+                            let res = cx.qpath_res(ty_qpath, ty.hir_id);
                             if let Some(def_id) = res.opt_def_id();
                             if Some(def_id) == cx.tcx.lang_items().owned_box();
                             // At this point, we know ty is Box<T>, now get T
@@ -652,7 +652,7 @@ impl Types {
         match mut_ty.ty.kind {
             TyKind::Path(ref qpath) => {
                 let hir_id = mut_ty.ty.hir_id;
-                let def = qpath_res(cx, qpath, hir_id);
+                let def = cx.qpath_res(qpath, hir_id);
                 if_chain! {
                     if let Some(def_id) = def.opt_def_id();
                     if Some(def_id) == cx.tcx.lang_items().owned_box();
@@ -739,7 +739,7 @@ fn is_any_trait(t: &hir::Ty<'_>) -> bool {
 
 fn get_bounds_if_impl_trait<'tcx>(cx: &LateContext<'tcx>, qpath: &QPath<'_>, id: HirId) -> Option<GenericBounds<'tcx>> {
     if_chain! {
-        if let Some(did) = qpath_res(cx, qpath, id).opt_def_id();
+        if let Some(did) = cx.qpath_res(qpath, id).opt_def_id();
         if let Some(Node::GenericParam(generic_param)) = cx.tcx.hir().get_if_local(did);
         if let GenericParamKind::Type { synthetic, .. } = generic_param.kind;
         if synthetic == Some(SyntheticTyParamKind::ImplTrait);
diff --git a/clippy_lints/src/unit_return_expecting_ord.rs b/clippy_lints/src/unit_return_expecting_ord.rs
index 2501635e7ef..c6ae8b9b598 100644
--- a/clippy_lints/src/unit_return_expecting_ord.rs
+++ b/clippy_lints/src/unit_return_expecting_ord.rs
@@ -4,7 +4,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::{Expr, ExprKind, StmtKind};
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty;
-use rustc_middle::ty::{GenericPredicates, PredicateAtom, ProjectionPredicate, TraitPredicate};
+use rustc_middle::ty::{GenericPredicates, PredicateKind, ProjectionPredicate, TraitPredicate};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::{BytePos, Span};
 
@@ -42,7 +42,7 @@ fn get_trait_predicates_for_trait_id<'tcx>(
     let mut preds = Vec::new();
     for (pred, _) in generics.predicates {
         if_chain! {
-            if let PredicateAtom::Trait(poly_trait_pred, _) = pred.skip_binders();
+            if let PredicateKind::Trait(poly_trait_pred, _) = pred.kind().skip_binder();
             let trait_pred = cx.tcx.erase_late_bound_regions(ty::Binder::bind(poly_trait_pred));
             if let Some(trait_def_id) = trait_id;
             if trait_def_id == trait_pred.trait_ref.def_id;
@@ -60,7 +60,7 @@ fn get_projection_pred<'tcx>(
     pred: TraitPredicate<'tcx>,
 ) -> Option<ProjectionPredicate<'tcx>> {
     generics.predicates.iter().find_map(|(proj_pred, _)| {
-        if let ty::PredicateAtom::Projection(proj_pred) = proj_pred.skip_binders() {
+        if let ty::PredicateKind::Projection(proj_pred) = proj_pred.kind().skip_binder() {
             let projection_pred = cx.tcx.erase_late_bound_regions(ty::Binder::bind(proj_pred));
             if projection_pred.projection_ty.substs == pred.trait_ref.substs {
                 return Some(projection_pred);
diff --git a/clippy_lints/src/utils/author.rs b/clippy_lints/src/utils/author.rs
index 43afa65de3e..ca60d335262 100644
--- a/clippy_lints/src/utils/author.rs
+++ b/clippy_lints/src/utils/author.rs
@@ -317,7 +317,7 @@ impl<'tcx> Visitor<'tcx> for PrintVisitor {
                 self.current = cast_pat;
                 self.visit_expr(expr);
             },
-            ExprKind::Loop(ref body, _, desugaring) => {
+            ExprKind::Loop(ref body, _, desugaring, _) => {
                 let body_pat = self.next("body");
                 let des = loop_desugaring_name(desugaring);
                 let label_pat = self.next("label");
diff --git a/clippy_lints/src/utils/higher.rs b/clippy_lints/src/utils/higher.rs
index bb71d95a7e2..340d340d6d3 100644
--- a/clippy_lints/src/utils/higher.rs
+++ b/clippy_lints/src/utils/higher.rs
@@ -142,7 +142,7 @@ pub fn for_loop<'tcx>(
         if let hir::ExprKind::Match(ref iterexpr, ref arms, hir::MatchSource::ForLoopDesugar) = expr.kind;
         if let hir::ExprKind::Call(_, ref iterargs) = iterexpr.kind;
         if iterargs.len() == 1 && arms.len() == 1 && arms[0].guard.is_none();
-        if let hir::ExprKind::Loop(ref block, _, _) = arms[0].body.kind;
+        if let hir::ExprKind::Loop(ref block, ..) = arms[0].body.kind;
         if block.expr.is_none();
         if let [ _, _, ref let_stmt, ref body ] = *block.stmts;
         if let hir::StmtKind::Local(ref local) = let_stmt.kind;
@@ -158,7 +158,7 @@ pub fn for_loop<'tcx>(
 /// `while cond { body }` becomes `(cond, body)`.
 pub fn while_loop<'tcx>(expr: &'tcx hir::Expr<'tcx>) -> Option<(&'tcx hir::Expr<'tcx>, &'tcx hir::Expr<'tcx>)> {
     if_chain! {
-        if let hir::ExprKind::Loop(hir::Block { expr: Some(expr), .. }, _, hir::LoopSource::While) = &expr.kind;
+        if let hir::ExprKind::Loop(hir::Block { expr: Some(expr), .. }, _, hir::LoopSource::While, _) = &expr.kind;
         if let hir::ExprKind::Match(cond, arms, hir::MatchSource::WhileDesugar) = &expr.kind;
         if let hir::ExprKind::DropTemps(cond) = &cond.kind;
         if let [hir::Arm { body, .. }, ..] = &arms[..];
diff --git a/clippy_lints/src/utils/hir_utils.rs b/clippy_lints/src/utils/hir_utils.rs
index 1c7398f17f2..c5870dc5124 100644
--- a/clippy_lints/src/utils/hir_utils.rs
+++ b/clippy_lints/src/utils/hir_utils.rs
@@ -132,7 +132,7 @@ impl<'a, 'tcx> SpanlessEq<'a, 'tcx> {
                 self.eq_expr(lc, rc) && self.eq_expr(&**lt, &**rt) && both(le, re, |l, r| self.eq_expr(l, r))
             },
             (&ExprKind::Lit(ref l), &ExprKind::Lit(ref r)) => l.node == r.node,
-            (&ExprKind::Loop(ref lb, ref ll, ref lls), &ExprKind::Loop(ref rb, ref rl, ref rls)) => {
+            (&ExprKind::Loop(ref lb, ref ll, ref lls, _), &ExprKind::Loop(ref rb, ref rl, ref rls, _)) => {
                 lls == rls && self.eq_block(lb, rb) && both(ll, rl, |l, r| l.ident.name == r.ident.name)
             },
             (&ExprKind::Match(ref le, ref la, ref ls), &ExprKind::Match(ref re, ref ra, ref rs)) => {
@@ -570,7 +570,7 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
             ExprKind::Lit(ref l) => {
                 l.node.hash(&mut self.s);
             },
-            ExprKind::Loop(ref b, ref i, _) => {
+            ExprKind::Loop(ref b, ref i, ..) => {
                 self.hash_block(b);
                 if let Some(i) = *i {
                     self.hash_name(i.ident.name);
diff --git a/clippy_lints/src/utils/internal_lints.rs b/clippy_lints/src/utils/internal_lints.rs
index 7aa17520ba7..822863ca3e2 100644
--- a/clippy_lints/src/utils/internal_lints.rs
+++ b/clippy_lints/src/utils/internal_lints.rs
@@ -1,7 +1,7 @@
 use crate::consts::{constant_simple, Constant};
 use crate::utils::{
-    is_expn_of, match_def_path, match_qpath, match_type, method_calls, path_to_res, paths, qpath_res, run_lints,
-    snippet, span_lint, span_lint_and_help, span_lint_and_sugg, SpanlessEq,
+    is_expn_of, match_def_path, match_qpath, match_type, method_calls, path_to_res, paths, run_lints, snippet,
+    span_lint, span_lint_and_help, span_lint_and_sugg, SpanlessEq,
 };
 use if_chain::if_chain;
 use rustc_ast::ast::{Crate as AstCrate, ItemKind, LitKind, NodeId};
@@ -787,7 +787,7 @@ fn path_to_matched_type(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> Option<Ve
 
     match &expr.kind {
         ExprKind::AddrOf(.., expr) => return path_to_matched_type(cx, expr),
-        ExprKind::Path(qpath) => match qpath_res(cx, qpath, expr.hir_id) {
+        ExprKind::Path(qpath) => match cx.qpath_res(qpath, expr.hir_id) {
             Res::Local(hir_id) => {
                 let parent_id = cx.tcx.hir().get_parent_node(hir_id);
                 if let Some(Node::Local(local)) = cx.tcx.hir().find(parent_id) {
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index 991fae6b1aa..d0db3a67533 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -34,7 +34,6 @@ use std::hash::BuildHasherDefault;
 
 use if_chain::if_chain;
 use rustc_ast::ast::{self, Attribute, LitKind};
-use rustc_attr as attr;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_errors::Applicability;
 use rustc_hir as hir;
@@ -348,19 +347,6 @@ pub fn path_to_res(cx: &LateContext<'_>, path: &[&str]) -> Option<Res> {
     Some(last.res)
 }
 
-pub fn qpath_res(cx: &LateContext<'_>, qpath: &hir::QPath<'_>, id: hir::HirId) -> Res {
-    match qpath {
-        hir::QPath::Resolved(_, path) => path.res,
-        hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => {
-            if cx.tcx.has_typeck_results(id.owner.to_def_id()) {
-                cx.tcx.typeck(id.owner).qpath_res(qpath, id)
-            } else {
-                Res::Err
-            }
-        },
-    }
-}
-
 /// Convenience function to get the `DefId` of a trait by path.
 /// It could be a trait or trait alias.
 pub fn get_trait_def_id(cx: &LateContext<'_>, path: &[&str]) -> Option<DefId> {
@@ -1201,27 +1187,27 @@ pub fn get_arg_name(pat: &Pat<'_>) -> Option<Symbol> {
     }
 }
 
-pub fn int_bits(tcx: TyCtxt<'_>, ity: ast::IntTy) -> u64 {
-    Integer::from_attr(&tcx, attr::IntType::SignedInt(ity)).size().bits()
+pub fn int_bits(tcx: TyCtxt<'_>, ity: ty::IntTy) -> u64 {
+    Integer::from_int_ty(&tcx, ity).size().bits()
 }
 
 #[allow(clippy::cast_possible_wrap)]
 /// Turn a constant int byte representation into an i128
-pub fn sext(tcx: TyCtxt<'_>, u: u128, ity: ast::IntTy) -> i128 {
+pub fn sext(tcx: TyCtxt<'_>, u: u128, ity: ty::IntTy) -> i128 {
     let amt = 128 - int_bits(tcx, ity);
     ((u as i128) << amt) >> amt
 }
 
 #[allow(clippy::cast_sign_loss)]
 /// clip unused bytes
-pub fn unsext(tcx: TyCtxt<'_>, u: i128, ity: ast::IntTy) -> u128 {
+pub fn unsext(tcx: TyCtxt<'_>, u: i128, ity: ty::IntTy) -> u128 {
     let amt = 128 - int_bits(tcx, ity);
     ((u as u128) << amt) >> amt
 }
 
 /// clip unused bytes
-pub fn clip(tcx: TyCtxt<'_>, u: u128, ity: ast::UintTy) -> u128 {
-    let bits = Integer::from_attr(&tcx, attr::IntType::UnsignedInt(ity)).size().bits();
+pub fn clip(tcx: TyCtxt<'_>, u: u128, ity: ty::UintTy) -> u128 {
+    let bits = Integer::from_uint_ty(&tcx, ity).size().bits();
     let amt = 128 - bits;
     (u << amt) >> amt
 }
@@ -1448,7 +1434,7 @@ pub fn is_must_use_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
         ty::Tuple(ref substs) => substs.types().any(|ty| is_must_use_ty(cx, ty)),
         ty::Opaque(ref def_id, _) => {
             for (predicate, _) in cx.tcx.explicit_item_bounds(*def_id) {
-                if let ty::PredicateAtom::Trait(trait_predicate, _) = predicate.skip_binders() {
+                if let ty::PredicateKind::Trait(trait_predicate, _) = predicate.kind().skip_binder() {
                     if must_use_attr(&cx.tcx.get_attrs(trait_predicate.trait_ref.def_id)).is_some() {
                         return true;
                     }
diff --git a/clippy_lints/src/utils/paths.rs b/clippy_lints/src/utils/paths.rs
index c0b203b5388..432cc5b59f6 100644
--- a/clippy_lints/src/utils/paths.rs
+++ b/clippy_lints/src/utils/paths.rs
@@ -48,7 +48,6 @@ pub const FN_MUT: [&str; 3] = ["core", "ops", "FnMut"];
 pub const FN_ONCE: [&str; 3] = ["core", "ops", "FnOnce"];
 pub const FROM_FROM: [&str; 4] = ["core", "convert", "From", "from"];
 pub const FROM_ITERATOR: [&str; 5] = ["core", "iter", "traits", "collect", "FromIterator"];
-pub const FROM_TRAIT: [&str; 3] = ["core", "convert", "From"];
 pub const FUTURE_FROM_GENERATOR: [&str; 3] = ["core", "future", "from_generator"];
 pub const HASH: [&str; 3] = ["core", "hash", "Hash"];
 pub const HASHMAP: [&str; 5] = ["std", "collections", "hash", "map", "HashMap"];
diff --git a/clippy_lints/src/utils/qualify_min_const_fn.rs b/clippy_lints/src/utils/qualify_min_const_fn.rs
index 7cb7d0a26b6..a482017afeb 100644
--- a/clippy_lints/src/utils/qualify_min_const_fn.rs
+++ b/clippy_lints/src/utils/qualify_min_const_fn.rs
@@ -19,18 +19,18 @@ pub fn is_min_const_fn(tcx: TyCtxt<'tcx>, body: &'a Body<'tcx>) -> McfResult {
     loop {
         let predicates = tcx.predicates_of(current);
         for (predicate, _) in predicates.predicates {
-            match predicate.skip_binders() {
-                ty::PredicateAtom::RegionOutlives(_)
-                | ty::PredicateAtom::TypeOutlives(_)
-                | ty::PredicateAtom::WellFormed(_)
-                | ty::PredicateAtom::Projection(_)
-                | ty::PredicateAtom::ConstEvaluatable(..)
-                | ty::PredicateAtom::ConstEquate(..)
-                | ty::PredicateAtom::TypeWellFormedFromEnv(..) => continue,
-                ty::PredicateAtom::ObjectSafe(_) => panic!("object safe predicate on function: {:#?}", predicate),
-                ty::PredicateAtom::ClosureKind(..) => panic!("closure kind predicate on function: {:#?}", predicate),
-                ty::PredicateAtom::Subtype(_) => panic!("subtype predicate on function: {:#?}", predicate),
-                ty::PredicateAtom::Trait(pred, _) => {
+            match predicate.kind().skip_binder() {
+                ty::PredicateKind::RegionOutlives(_)
+                | ty::PredicateKind::TypeOutlives(_)
+                | ty::PredicateKind::WellFormed(_)
+                | ty::PredicateKind::Projection(_)
+                | ty::PredicateKind::ConstEvaluatable(..)
+                | ty::PredicateKind::ConstEquate(..)
+                | ty::PredicateKind::TypeWellFormedFromEnv(..) => continue,
+                ty::PredicateKind::ObjectSafe(_) => panic!("object safe predicate on function: {:#?}", predicate),
+                ty::PredicateKind::ClosureKind(..) => panic!("closure kind predicate on function: {:#?}", predicate),
+                ty::PredicateKind::Subtype(_) => panic!("subtype predicate on function: {:#?}", predicate),
+                ty::PredicateKind::Trait(pred, _) => {
                     if Some(pred.def_id()) == tcx.lang_items().sized_trait() {
                         continue;
                     }
diff --git a/rust-toolchain b/rust-toolchain
index 72935072f8c..f55d55d7065 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2021-01-15"
+channel = "nightly-2021-01-30"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src", "rustfmt"]
diff --git a/tests/ui/deprecated.rs b/tests/ui/deprecated.rs
index e1ee8dbca2c..fc444c0bea7 100644
--- a/tests/ui/deprecated.rs
+++ b/tests/ui/deprecated.rs
@@ -9,5 +9,7 @@
 #[warn(clippy::drop_bounds)]
 #[warn(clippy::temporary_cstring_as_ptr)]
 #[warn(clippy::panic_params)]
+#[warn(clippy::unknown_clippy_lints)]
+#[warn(clippy::find_map)]
 
 fn main() {}
diff --git a/tests/ui/deprecated.stderr b/tests/ui/deprecated.stderr
index edbb891afe0..64efcd18f88 100644
--- a/tests/ui/deprecated.stderr
+++ b/tests/ui/deprecated.stderr
@@ -1,4 +1,4 @@
-error: lint `clippy::unstable_as_slice` has been removed: ``Vec::as_slice` has been stabilized in 1.7`
+error: lint `clippy::unstable_as_slice` has been removed: `Vec::as_slice` has been stabilized in 1.7
   --> $DIR/deprecated.rs:1:8
    |
 LL | #[warn(clippy::unstable_as_slice)]
@@ -6,71 +6,83 @@ LL | #[warn(clippy::unstable_as_slice)]
    |
    = note: `-D renamed-and-removed-lints` implied by `-D warnings`
 
-error: lint `clippy::unstable_as_mut_slice` has been removed: ``Vec::as_mut_slice` has been stabilized in 1.7`
+error: lint `clippy::unstable_as_mut_slice` has been removed: `Vec::as_mut_slice` has been stabilized in 1.7
   --> $DIR/deprecated.rs:2:8
    |
 LL | #[warn(clippy::unstable_as_mut_slice)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::misaligned_transmute` has been removed: `this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr`
+error: lint `clippy::misaligned_transmute` has been removed: this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr
   --> $DIR/deprecated.rs:3:8
    |
 LL | #[warn(clippy::misaligned_transmute)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::unused_collect` has been removed: ``collect` has been marked as #[must_use] in rustc and that covers all cases of this lint`
+error: lint `clippy::unused_collect` has been removed: `collect` has been marked as #[must_use] in rustc and that covers all cases of this lint
   --> $DIR/deprecated.rs:4:8
    |
 LL | #[warn(clippy::unused_collect)]
    |        ^^^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::invalid_ref` has been removed: `superseded by rustc lint `invalid_value``
+error: lint `clippy::invalid_ref` has been removed: superseded by rustc lint `invalid_value`
   --> $DIR/deprecated.rs:5:8
    |
 LL | #[warn(clippy::invalid_ref)]
    |        ^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::into_iter_on_array` has been removed: `this lint has been uplifted to rustc and is now called `array_into_iter``
+error: lint `clippy::into_iter_on_array` has been removed: this lint has been uplifted to rustc and is now called `array_into_iter`
   --> $DIR/deprecated.rs:6:8
    |
 LL | #[warn(clippy::into_iter_on_array)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::unused_label` has been removed: `this lint has been uplifted to rustc and is now called `unused_labels``
+error: lint `clippy::unused_label` has been removed: this lint has been uplifted to rustc and is now called `unused_labels`
   --> $DIR/deprecated.rs:7:8
    |
 LL | #[warn(clippy::unused_label)]
    |        ^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::regex_macro` has been removed: `the regex! macro has been removed from the regex crate in 2018`
+error: lint `clippy::regex_macro` has been removed: the regex! macro has been removed from the regex crate in 2018
   --> $DIR/deprecated.rs:8:8
    |
 LL | #[warn(clippy::regex_macro)]
    |        ^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::drop_bounds` has been removed: `this lint has been uplifted to rustc and is now called `drop_bounds``
+error: lint `clippy::drop_bounds` has been removed: this lint has been uplifted to rustc and is now called `drop_bounds`
   --> $DIR/deprecated.rs:9:8
    |
 LL | #[warn(clippy::drop_bounds)]
    |        ^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::temporary_cstring_as_ptr` has been removed: `this lint has been uplifted to rustc and is now called `temporary_cstring_as_ptr``
+error: lint `clippy::temporary_cstring_as_ptr` has been removed: this lint has been uplifted to rustc and is now called `temporary_cstring_as_ptr`
   --> $DIR/deprecated.rs:10:8
    |
 LL | #[warn(clippy::temporary_cstring_as_ptr)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::panic_params` has been removed: `this lint has been uplifted to rustc and is now called `panic_fmt``
+error: lint `clippy::panic_params` has been removed: this lint has been uplifted to rustc and is now called `panic_fmt`
   --> $DIR/deprecated.rs:11:8
    |
 LL | #[warn(clippy::panic_params)]
    |        ^^^^^^^^^^^^^^^^^^^^
 
-error: lint `clippy::unstable_as_slice` has been removed: ``Vec::as_slice` has been stabilized in 1.7`
+error: lint `clippy::unknown_clippy_lints` has been removed: this lint has been integrated into the `unknown_lints` rustc lint
+  --> $DIR/deprecated.rs:12:8
+   |
+LL | #[warn(clippy::unknown_clippy_lints)]
+   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: lint `clippy::find_map` has been removed: this lint has been replaced by `manual_find_map`, a more specific lint
+  --> $DIR/deprecated.rs:13:8
+   |
+LL | #[warn(clippy::find_map)]
+   |        ^^^^^^^^^^^^^^^^
+
+error: lint `clippy::unstable_as_slice` has been removed: `Vec::as_slice` has been stabilized in 1.7
   --> $DIR/deprecated.rs:1:8
    |
 LL | #[warn(clippy::unstable_as_slice)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: aborting due to 12 previous errors
+error: aborting due to 14 previous errors
 
diff --git a/tests/ui/deprecated_old.stderr b/tests/ui/deprecated_old.stderr
index 2fe1facf0c7..b8550078c46 100644
--- a/tests/ui/deprecated_old.stderr
+++ b/tests/ui/deprecated_old.stderr
@@ -1,4 +1,4 @@
-error: lint `unstable_as_slice` has been removed: ``Vec::as_slice` has been stabilized in 1.7`
+error: lint `unstable_as_slice` has been removed: `Vec::as_slice` has been stabilized in 1.7
   --> $DIR/deprecated_old.rs:1:8
    |
 LL | #[warn(unstable_as_slice)]
@@ -6,19 +6,19 @@ LL | #[warn(unstable_as_slice)]
    |
    = note: `-D renamed-and-removed-lints` implied by `-D warnings`
 
-error: lint `unstable_as_mut_slice` has been removed: ``Vec::as_mut_slice` has been stabilized in 1.7`
+error: lint `unstable_as_mut_slice` has been removed: `Vec::as_mut_slice` has been stabilized in 1.7
   --> $DIR/deprecated_old.rs:2:8
    |
 LL | #[warn(unstable_as_mut_slice)]
    |        ^^^^^^^^^^^^^^^^^^^^^
 
-error: lint `misaligned_transmute` has been removed: `this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr`
+error: lint `misaligned_transmute` has been removed: this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr
   --> $DIR/deprecated_old.rs:3:8
    |
 LL | #[warn(misaligned_transmute)]
    |        ^^^^^^^^^^^^^^^^^^^^
 
-error: lint `unstable_as_slice` has been removed: ``Vec::as_slice` has been stabilized in 1.7`
+error: lint `unstable_as_slice` has been removed: `Vec::as_slice` has been stabilized in 1.7
   --> $DIR/deprecated_old.rs:1:8
    |
 LL | #[warn(unstable_as_slice)]
diff --git a/tests/ui/unknown_clippy_lints.stderr b/tests/ui/unknown_clippy_lints.stderr
index 1b859043bb5..94a667e5898 100644
--- a/tests/ui/unknown_clippy_lints.stderr
+++ b/tests/ui/unknown_clippy_lints.stderr
@@ -1,52 +1,58 @@
-error: unknown clippy lint: clippy::if_not_els
+error: unknown lint: `clippy::All`
+  --> $DIR/unknown_clippy_lints.rs:5:10
+   |
+LL | #![allow(clippy::All)]
+   |          ^^^^^^^^^^^ help: did you mean: `clippy::all`
+   |
+   = note: `-D unknown-lints` implied by `-D warnings`
+
+error: unknown lint: `clippy::CMP_NAN`
+  --> $DIR/unknown_clippy_lints.rs:6:9
+   |
+LL | #![warn(clippy::CMP_NAN)]
+   |         ^^^^^^^^^^^^^^^ help: did you mean: `clippy::cmp_nan`
+
+error: unknown lint: `clippy::if_not_els`
   --> $DIR/unknown_clippy_lints.rs:9:8
    |
 LL | #[warn(clippy::if_not_els)]
    |        ^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::if_not_else`
-   |
-   = note: `-D clippy::unknown-clippy-lints` implied by `-D warnings`
 
-error: unknown clippy lint: clippy::UNNecsaRy_cAst
+error: unknown lint: `clippy::UNNecsaRy_cAst`
   --> $DIR/unknown_clippy_lints.rs:10:8
    |
 LL | #[warn(clippy::UNNecsaRy_cAst)]
    |        ^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::unnecessary_cast`
 
-error: unknown clippy lint: clippy::useles_transute
+error: unknown lint: `clippy::useles_transute`
   --> $DIR/unknown_clippy_lints.rs:11:8
    |
 LL | #[warn(clippy::useles_transute)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::useless_transmute`
 
-error: unknown clippy lint: clippy::dead_cod
+error: unknown lint: `clippy::dead_cod`
   --> $DIR/unknown_clippy_lints.rs:13:8
    |
 LL | #[warn(clippy::dead_cod)]
    |        ^^^^^^^^^^^^^^^^ help: did you mean: `clippy::drop_copy`
 
-error: unknown clippy lint: clippy::unused_colle
+error: unknown lint: `clippy::unused_colle`
   --> $DIR/unknown_clippy_lints.rs:15:8
    |
 LL | #[warn(clippy::unused_colle)]
    |        ^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::unused_self`
 
-error: unknown clippy lint: clippy::const_static_lifetim
+error: unknown lint: `clippy::const_static_lifetim`
   --> $DIR/unknown_clippy_lints.rs:17:8
    |
 LL | #[warn(clippy::const_static_lifetim)]
    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: did you mean: `clippy::redundant_static_lifetimes`
 
-error: unknown clippy lint: clippy::All
+error: unknown lint: `clippy::All`
   --> $DIR/unknown_clippy_lints.rs:5:10
    |
 LL | #![allow(clippy::All)]
-   |          ^^^^^^^^^^^ help: lowercase the lint name: `clippy::all`
-
-error: unknown clippy lint: clippy::CMP_NAN
-  --> $DIR/unknown_clippy_lints.rs:6:9
-   |
-LL | #![warn(clippy::CMP_NAN)]
-   |         ^^^^^^^^^^^^^^^ help: lowercase the lint name: `clippy::cmp_nan`
+   |          ^^^^^^^^^^^ help: did you mean: `clippy::all`
 
-error: aborting due to 8 previous errors
+error: aborting due to 9 previous errors