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-rw-r--r--library/std/src/lib.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index bea8eda2619..606d75668c4 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -306,10 +306,12 @@
 #![feature(negative_impls)]
 #![feature(never_type)]
 #![feature(no_sanitize)]
+#![feature(optimize_attribute)]
 #![feature(prelude_import)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
 #![feature(staged_api)]
+#![feature(stmt_expr_attributes)]
 #![feature(thread_local)]
 #![feature(try_blocks)]
 #![feature(type_alias_impl_trait)]