diff --git a/library/stdarch/crates/core_arch/src/lib.rs b/library/stdarch/crates/core_arch/src/lib.rs
index e3af125a68d7..3d7593252470 100644
--- a/library/stdarch/crates/core_arch/src/lib.rs
+++ b/library/stdarch/crates/core_arch/src/lib.rs
@@ -2,13 +2,11 @@
 #![allow(improper_ctypes_definitions)]
 #![allow(dead_code)]
 #![allow(unused_features)]
-#![allow(incomplete_features)]
 #![feature(
     asm,
     const_fn,
     const_fn_union,
     const_fn_transmute,
-    const_generics,
     custom_inner_attributes,
     link_llvm_intrinsics,
     platform_intrinsics,