diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs
index c270b947d4fd..9d696e130fdc 100644
--- a/library/core/src/num/nonzero.rs
+++ b/library/core/src/num/nonzero.rs
@@ -1950,8 +1950,6 @@ pub const fn cast_signed(self) -> NonZero<$Sint> {
         /// # Examples
         ///
         /// ```
-        /// #![feature(uint_bit_width)]
-        ///
         /// # use core::num::NonZero;
         /// #
         /// # fn main() { test().unwrap(); }
@@ -1962,7 +1960,8 @@ pub const fn cast_signed(self) -> NonZero<$Sint> {
         /// # Some(())
         /// # }
         /// ```
-        #[unstable(feature = "uint_bit_width", issue = "142326")]
+        #[stable(feature = "uint_bit_width", since = "CURRENT_RUSTC_VERSION")]
+        #[rustc_const_stable(feature = "uint_bit_width", since = "CURRENT_RUSTC_VERSION")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs
index c35deee920e4..8a0b5a9c77ec 100644
--- a/library/core/src/num/uint_macros.rs
+++ b/library/core/src/num/uint_macros.rs
@@ -232,14 +232,13 @@ pub const fn trailing_ones(self) -> u32 {
         /// # Examples
         ///
         /// ```
-        /// #![feature(uint_bit_width)]
-        ///
         #[doc = concat!("assert_eq!(0_", stringify!($SelfT), ".bit_width(), 0);")]
         #[doc = concat!("assert_eq!(0b111_", stringify!($SelfT), ".bit_width(), 3);")]
         #[doc = concat!("assert_eq!(0b1110_", stringify!($SelfT), ".bit_width(), 4);")]
         #[doc = concat!("assert_eq!(", stringify!($SelfT), "::MAX.bit_width(), ", stringify!($BITS), ");")]
         /// ```
-        #[unstable(feature = "uint_bit_width", issue = "142326")]
+        #[stable(feature = "uint_bit_width", since = "CURRENT_RUSTC_VERSION")]
+        #[rustc_const_stable(feature = "uint_bit_width", since = "CURRENT_RUSTC_VERSION")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs
index 129d2c013cd2..d435e01a98c6 100644
--- a/library/coretests/tests/lib.rs
+++ b/library/coretests/tests/lib.rs
@@ -121,7 +121,6 @@
 #![feature(try_find)]
 #![feature(try_trait_v2)]
 #![feature(type_info)]
-#![feature(uint_bit_width)]
 #![feature(uint_carryless_mul)]
 #![feature(uint_gather_scatter_bits)]
 #![feature(unicode_internals)]