diff --git a/src/librustc/hir/lowering.rs b/src/librustc/hir/lowering.rs
index 4023521147e7..74fedd6bfbaf 100644
--- a/src/librustc/hir/lowering.rs
+++ b/src/librustc/hir/lowering.rs
@@ -4107,15 +4107,13 @@ impl<'a> LoweringContext<'a> {
     }
 
     fn maybe_lint_bare_trait(&self, span: Span, id: NodeId, is_global: bool) {
-        if self.sess.features_untracked().dyn_trait {
-            self.sess.buffer_lint_with_diagnostic(
-                builtin::BARE_TRAIT_OBJECT,
-                id,
-                span,
-                "trait objects without an explicit `dyn` are deprecated",
-                builtin::BuiltinLintDiagnostics::BareTraitObject(span, is_global),
-            )
-        }
+        self.sess.buffer_lint_with_diagnostic(
+            builtin::BARE_TRAIT_OBJECT,
+            id,
+            span,
+            "trait objects without an explicit `dyn` are deprecated",
+            builtin::BuiltinLintDiagnostics::BareTraitObject(span, is_global),
+        )
     }
 
     fn wrap_in_try_constructor(
diff --git a/src/librustc_typeck/lib.rs b/src/librustc_typeck/lib.rs
index e852edc6eed0..1e48926f2b3b 100644
--- a/src/librustc_typeck/lib.rs
+++ b/src/librustc_typeck/lib.rs
@@ -84,7 +84,6 @@ This API is completely unstable and subject to change.
 #![feature(slice_patterns)]
 #![feature(slice_sort_by_cached_key)]
 #![feature(never_type)]
-#![feature(underscore_lifetimes)]
 
 #[macro_use] extern crate log;
 #[macro_use] extern crate syntax;