diff --git a/clippy_lints/src/consts.rs b/clippy_lints/src/consts.rs
index 0000d39263e..062c9bd2d9e 100644
--- a/clippy_lints/src/consts.rs
+++ b/clippy_lints/src/consts.rs
@@ -155,7 +155,7 @@ pub fn lit_to_constant(lit: &LitKind, ty: Option<Ty<'_>>) -> Constant {
     match *lit {
         LitKind::Str(ref is, _) => Constant::Str(is.to_string()),
         LitKind::Byte(b) => Constant::Int(u128::from(b)),
-        LitKind::ByteStr(ref s) => Constant::Binary(Lrc::from(s.as_slice())),
+        LitKind::ByteStr(ref s) => Constant::Binary(Lrc::clone(s)),
         LitKind::Char(c) => Constant::Char(c),
         LitKind::Int(n, _) => Constant::Int(n),
         LitKind::Float(ref is, LitFloatType::Suffixed(fty)) => match fty {
diff --git a/clippy_lints/src/future_not_send.rs b/clippy_lints/src/future_not_send.rs
index 2ab257ca88e..71a30d1c33d 100644
--- a/clippy_lints/src/future_not_send.rs
+++ b/clippy_lints/src/future_not_send.rs
@@ -3,6 +3,7 @@ use rustc_hir::intravisit::FnKind;
 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_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::{sym, Span};
@@ -62,9 +63,10 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend {
         }
         let ret_ty = utils::return_ty(cx, hir_id);
         if let Opaque(id, subst) = *ret_ty.kind() {
-            let preds = cx.tcx.predicates_of(id).instantiate(cx.tcx, subst);
+            let preds = cx.tcx.explicit_item_bounds(id);
             let mut is_future = false;
-            for p in preds.predicates {
+            for &(p, _span) in preds {
+                let p = p.subst(cx.tcx, subst);
                 if let Some(trait_ref) = p.to_opt_poly_trait_ref() {
                     if Some(trait_ref.def_id()) == cx.tcx.lang_items().future_trait() {
                         is_future = true;
diff --git a/clippy_lints/src/methods/mod.rs b/clippy_lints/src/methods/mod.rs
index dadd0f8ebb7..ec70b2f1e20 100644
--- a/clippy_lints/src/methods/mod.rs
+++ b/clippy_lints/src/methods/mod.rs
@@ -1667,7 +1667,7 @@ impl<'tcx> LateLintPass<'tcx> for Methods {
             // if return type is impl trait, check the associated types
             if let ty::Opaque(def_id, _) = *ret_ty.kind() {
                 // one of the associated types must be Self
-                for &(predicate, _span) in cx.tcx.predicates_of(def_id).predicates {
+                for &(predicate, _span) in cx.tcx.explicit_item_bounds(def_id) {
                     if let ty::PredicateAtom::Projection(projection_predicate) = predicate.skip_binders() {
                         // walk the associated type and check for Self
                         if contains_ty(projection_predicate.ty, self_ty) {
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index dfe2aadffc0..790ac4f7dd8 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -1276,7 +1276,7 @@ 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.predicates_of(*def_id).predicates {
+            for (predicate, _) in cx.tcx.explicit_item_bounds(*def_id) {
                 if let ty::PredicateAtom::Trait(trait_predicate, _) = predicate.skip_binders() {
                     if must_use_attr(&cx.tcx.get_attrs(trait_predicate.trait_ref.def_id)).is_some() {
                         return true;
diff --git a/tests/ui/attrs.rs b/tests/ui/attrs.rs
index 908d063729f..32685038067 100644
--- a/tests/ui/attrs.rs
+++ b/tests/ui/attrs.rs
@@ -3,7 +3,6 @@
 // Test that the whole restriction group is not enabled
 #![warn(clippy::restriction)]
 #![deny(clippy::restriction)]
-#![forbid(clippy::restriction)]
 #![allow(clippy::missing_docs_in_private_items, clippy::panic, clippy::unreachable)]
 
 #[inline(always)]
diff --git a/tests/ui/attrs.stderr b/tests/ui/attrs.stderr
index ef4b89eaa6d..4324984dd60 100644
--- a/tests/ui/attrs.stderr
+++ b/tests/ui/attrs.stderr
@@ -1,5 +1,5 @@
 error: you have declared `#[inline(always)]` on `test_attr_lint`. This is usually a bad idea
-  --> $DIR/attrs.rs:9:1
+  --> $DIR/attrs.rs:8:1
    |
 LL | #[inline(always)]
    | ^^^^^^^^^^^^^^^^^
@@ -7,7 +7,7 @@ LL | #[inline(always)]
    = note: `-D clippy::inline-always` implied by `-D warnings`
 
 error: the since field must contain a semver-compliant version
-  --> $DIR/attrs.rs:29:14
+  --> $DIR/attrs.rs:28:14
    |
 LL | #[deprecated(since = "forever")]
    |              ^^^^^^^^^^^^^^^^^
@@ -15,7 +15,7 @@ LL | #[deprecated(since = "forever")]
    = note: `-D clippy::deprecated-semver` implied by `-D warnings`
 
 error: the since field must contain a semver-compliant version
-  --> $DIR/attrs.rs:32:14
+  --> $DIR/attrs.rs:31:14
    |
 LL | #[deprecated(since = "1")]
    |              ^^^^^^^^^^^
@@ -37,13 +37,5 @@ LL | #![deny(clippy::restriction)]
    |
    = help: try enabling only the lints you really need
 
-error: restriction lints are not meant to be all enabled
-  --> $DIR/attrs.rs:6:11
-   |
-LL | #![forbid(clippy::restriction)]
-   |           ^^^^^^^^^^^^^^^^^^^
-   |
-   = help: try enabling only the lints you really need
-
-error: aborting due to 6 previous errors
+error: aborting due to 5 previous errors