diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs
index fdf7a8102a028..1807bd3654fcc 100644
--- a/compiler/rustc_hir/src/hir.rs
+++ b/compiler/rustc_hir/src/hir.rs
@@ -522,7 +522,7 @@ pub struct GenericParam<'hir> {
     pub kind: GenericParamKind<'hir>,
 }
 
-impl GenericParam<'hir> {
+impl<'hir> GenericParam<'hir> {
     pub fn bounds_span_for_suggestions(&self) -> Option<Span> {
         self.bounds
             .iter()
@@ -557,7 +557,7 @@ pub struct Generics<'hir> {
     pub span: Span,
 }
 
-impl Generics<'hir> {
+impl<'hir> Generics<'hir> {
     pub const fn empty() -> Generics<'hir> {
         Generics {
             params: &[],
@@ -622,7 +622,7 @@ pub enum WherePredicate<'hir> {
     EqPredicate(WhereEqPredicate<'hir>),
 }
 
-impl WherePredicate<'_> {
+impl<'hir> WherePredicate<'hir> {
     pub fn span(&self) -> Span {
         match self {
             WherePredicate::BoundPredicate(p) => p.span,
@@ -644,7 +644,7 @@ pub struct WhereBoundPredicate<'hir> {
     pub bounds: GenericBounds<'hir>,
 }
 
-impl WhereBoundPredicate<'hir> {
+impl<'hir> WhereBoundPredicate<'hir> {
     /// Returns `true` if `param_def_id` matches the `bounded_ty` of this predicate.
     pub fn is_param_bound(&self, param_def_id: DefId) -> bool {
         let path = match self.bounded_ty.kind {
@@ -1236,7 +1236,7 @@ pub struct Body<'hir> {
     pub generator_kind: Option<GeneratorKind>,
 }
 
-impl Body<'hir> {
+impl<'hir> Body<'hir> {
     pub fn id(&self) -> BodyId {
         BodyId { hir_id: self.value.hir_id }
     }
@@ -2623,7 +2623,7 @@ pub enum VariantData<'hir> {
     Unit(HirId),
 }
 
-impl VariantData<'hir> {
+impl<'hir> VariantData<'hir> {
     /// Return the fields of this variant.
     pub fn fields(&self) -> &'hir [FieldDef<'hir>] {
         match *self {
diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs
index 21f89104c4b58..a2f1db3579a8e 100644
--- a/compiler/rustc_hir/src/intravisit.rs
+++ b/compiler/rustc_hir/src/intravisit.rs
@@ -139,7 +139,7 @@ pub trait Map<'hir> {
 }
 
 // Used when no map is actually available, forcing manual implementation of nested visitors.
-impl Map<'hir> for ! {
+impl<'hir> Map<'hir> for ! {
     fn find(&self, _: HirId) -> Option<Node<'hir>> {
         unreachable!()
     }
diff --git a/compiler/rustc_hir/src/lib.rs b/compiler/rustc_hir/src/lib.rs
index 93224d388c00f..1df9b5f9c78a9 100644
--- a/compiler/rustc_hir/src/lib.rs
+++ b/compiler/rustc_hir/src/lib.rs
@@ -4,7 +4,6 @@
 
 #![feature(const_btree_new)]
 #![feature(crate_visibility_modifier)]
-#![feature(in_band_lifetimes)]
 #![feature(once_cell)]
 #![feature(min_specialization)]
 #![feature(never_type)]
diff --git a/compiler/rustc_hir/src/stable_hash_impls.rs b/compiler/rustc_hir/src/stable_hash_impls.rs
index 6e7b765a0c441..c8d729a999e83 100644
--- a/compiler/rustc_hir/src/stable_hash_impls.rs
+++ b/compiler/rustc_hir/src/stable_hash_impls.rs
@@ -211,7 +211,7 @@ impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for Item<'_> {
     }
 }
 
-impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for OwnerNodes<'tcx> {
+impl<'tcx, HirCtx: crate::HashStableContext> HashStable<HirCtx> for OwnerNodes<'tcx> {
     fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
         // We ignore the `nodes` and `bodies` fields since these refer to information included in
         // `hash` which is hashed in the collector and used for the crate hash.
@@ -221,7 +221,7 @@ impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for OwnerNodes<'tcx> {
     }
 }
 
-impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for AttributeMap<'tcx> {
+impl<'tcx, HirCtx: crate::HashStableContext> HashStable<HirCtx> for AttributeMap<'tcx> {
     fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
         // We ignore the `map` since it refers to information included in `hash` which is hashed in
         // the collector and used for the crate hash.