4 files changed, 4 insertions, 4 deletions
diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs
index 0a413d68020..cd291058977 100644
--- a/compiler/rustc_mir_transform/src/coroutine.rs
+++ b/compiler/rustc_mir_transform/src/coroutine.rs
@@ -1497,7 +1497,7 @@ fn check_field_tys_sized<'tcx>(
 ) {
     // No need to check if unsized_locals/unsized_fn_params is disabled,
     // since we will error during typeck.
-    if !tcx.features().unsized_locals && !tcx.features().unsized_fn_params {
+    if !tcx.features().unsized_locals() && !tcx.features().unsized_fn_params() {
         return;
     }
 
diff --git a/compiler/rustc_mir_transform/src/coverage/mappings.rs b/compiler/rustc_mir_transform/src/coverage/mappings.rs
index bc86ae22a0d..2db7c6cf1d6 100644
--- a/compiler/rustc_mir_transform/src/coverage/mappings.rs
+++ b/compiler/rustc_mir_transform/src/coverage/mappings.rs
@@ -363,7 +363,7 @@ fn calc_test_vectors_index(conditions: &mut Vec<MCDCBranch>) -> usize {
             let ConditionInfo { condition_id, true_next_id, false_next_id } = branch.condition_info;
             [true_next_id, false_next_id]
                 .into_iter()
-                .filter_map(std::convert::identity)
+                .flatten()
                 .for_each(|next_id| indegree_stats[next_id] += 1);
             (condition_id, branch)
         })
diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs
index da7d20cf19a..085c738f1f9 100644
--- a/compiler/rustc_mir_transform/src/coverage/spans.rs
+++ b/compiler/rustc_mir_transform/src/coverage/spans.rs
@@ -87,7 +87,7 @@ fn remove_unwanted_expansion_spans(covspans: &mut Vec<SpanFromMir>) {
     covspans.retain(|covspan| {
         match covspan.expn_kind {
             // Retain only the first await-related or macro-expanded covspan with this span.
-            Some(ExpnKind::Desugaring(kind)) if kind == DesugaringKind::Await => {
+            Some(ExpnKind::Desugaring(DesugaringKind::Await)) => {
                 deduplicated_spans.insert(covspan.span)
             }
             Some(ExpnKind::Macro(MacroKind::Bang, _)) => deduplicated_spans.insert(covspan.span),
diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs
index daf868559bc..79c62372df0 100644
--- a/compiler/rustc_mir_transform/src/gvn.rs
+++ b/compiler/rustc_mir_transform/src/gvn.rs
@@ -288,7 +288,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> {
             values: FxIndexSet::with_capacity_and_hasher(num_values, Default::default()),
             evaluated: IndexVec::with_capacity(num_values),
             next_opaque: Some(1),
-            feature_unsized_locals: tcx.features().unsized_locals,
+            feature_unsized_locals: tcx.features().unsized_locals(),
             ssa,
             dominators,
             reused_locals: BitSet::new_empty(local_decls.len()),