[beta] 1.75.0 promotion

compiler/rustc_feature/src/accepted.rs

@@ -65,7 +65,7 @@ declare_features! (
     /// Allows free and inherent `async fn`s, `async` blocks, and `<expr>.await` expressions.
     (accepted, async_await, "1.39.0", Some(50547), None),
     /// Allows async functions to be declared, implemented, and used in traits.
-    (accepted, async_fn_in_trait, "CURRENT_RUSTC_VERSION", Some(91611), None),
+    (accepted, async_fn_in_trait, "1.75.0", Some(91611), None),
     /// Allows all literals in attribute lists and values of key-value pairs.
     (accepted, attr_literals, "1.30.0", Some(34981), None),
     /// Allows overloading augmented assignment operations like `a += b`.
@@ -306,7 +306,7 @@ declare_features! (
     /// Allows `#[repr(transparent)]` attribute on newtype structs.
     (accepted, repr_transparent, "1.28.0", Some(43036), None),
     /// Allows return-position `impl Trait` in traits.
-    (accepted, return_position_impl_trait_in_trait, "CURRENT_RUSTC_VERSION", Some(91611), None),
+    (accepted, return_position_impl_trait_in_trait, "1.75.0", Some(91611), None),
     /// Allows code like `let x: &'static u32 = &42` to work (RFC 1414).
     (accepted, rvalue_static_promotion, "1.21.0", Some(38865), None),
     /// Allows `Self` in type definitions (RFC 2300).

compiler/rustc_feature/src/removed.rs

@@ -153,7 +153,7 @@ declare_features! (
     (removed, panic_implementation, "1.28.0", Some(44489), None,
      Some("subsumed by `#[panic_handler]`")),
     /// Allows using `#![plugin(myplugin)]`.
-    (removed, plugin, "CURRENT_RUSTC_VERSION", Some(29597), None,
+    (removed, plugin, "1.75.0", Some(29597), None,
      Some("plugins are no longer supported")),
     /// Allows using `#[plugin_registrar]` on functions.
     (removed, plugin_registrar, "1.54.0", Some(29597), None,

compiler/rustc_feature/src/unstable.rs

@@ -457,7 +457,7 @@ declare_features! (
     /// Allows using `#[repr(align(...))]` on function items
     (unstable, fn_align, "1.53.0", Some(82232), None),
     /// Allows defining gen blocks and `gen fn`.
-    (unstable, gen_blocks, "CURRENT_RUSTC_VERSION", Some(117078), None),
+    (unstable, gen_blocks, "1.75.0", Some(117078), None),
     /// Infer generic args for both consts and types.
     (unstable, generic_arg_infer, "1.55.0", Some(85077), None),
     /// An extension to the `generic_associated_types` feature, allowing incomplete features.
@@ -527,7 +527,7 @@ declare_features! (
     /// casts in safe Rust to `dyn Trait` for such a `Trait` is also forbidden.
     (unstable, object_safe_for_dispatch, "1.40.0", Some(43561), None),
     /// Allows using enums in offset_of!
-    (unstable, offset_of_enum, "CURRENT_RUSTC_VERSION", Some(106655), None),
+    (unstable, offset_of_enum, "1.75.0", Some(106655), None),
     /// Allows using `#[optimize(X)]`.
     (unstable, optimize_attribute, "1.34.0", Some(54882), None),
     /// Allows exhaustive integer pattern matching on `usize` and `isize`.

library/core/src/char/decode.rs

@@ -106,7 +106,7 @@ impl<I: Iterator<Item = u16>> Iterator for DecodeUtf16<I> {
     }
 }
 
-#[stable(feature = "decode_utf16_fused_iterator", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "decode_utf16_fused_iterator", since = "1.75.0")]
 impl<I: Iterator<Item = u16> + FusedIterator> FusedIterator for DecodeUtf16<I> {}
 
 impl DecodeUtf16Error {

library/core/src/intrinsics.rs

@@ -1072,15 +1072,15 @@ extern "rust-intrinsic" {
     /// zero-initialization: This will statically either panic, or do nothing.
     ///
     /// This intrinsic does not have a stable counterpart.
-    #[rustc_const_stable(feature = "const_assert_type2", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_assert_type2", since = "1.75.0")]
     #[rustc_safe_intrinsic]
     #[rustc_nounwind]
     pub fn assert_zero_valid<T>();
 
     /// A guard for `std::mem::uninitialized`. This will statically either panic, or do nothing.
     ///
     /// This intrinsic does not have a stable counterpart.
-    #[rustc_const_stable(feature = "const_assert_type2", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_assert_type2", since = "1.75.0")]
     #[rustc_safe_intrinsic]
     #[rustc_nounwind]
     pub fn assert_mem_uninitialized_valid<T>();
@@ -2279,7 +2279,7 @@ extern "rust-intrinsic" {
     /// any safety invariants.
     ///
     /// The stabilized version of this intrinsic is [`core::mem::discriminant`].
-    #[rustc_const_stable(feature = "const_discriminant", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_discriminant", since = "1.75.0")]
     #[rustc_safe_intrinsic]
     #[rustc_nounwind]
     pub fn discriminant_value<T>(v: &T) -> <T as DiscriminantKind>::Discriminant;

library/core/src/mem/maybe_uninit.rs

@@ -398,7 +398,7 @@ impl<T> MaybeUninit<T> {
     #[rustc_allow_const_fn_unstable(const_mut_refs)]
     #[rustc_allow_const_fn_unstable(const_ptr_write)]
     #[rustc_allow_const_fn_unstable(const_maybe_uninit_as_mut_ptr)]
-    #[rustc_const_stable(feature = "const_maybe_uninit_zeroed", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_maybe_uninit_zeroed", since = "1.75.0")]
     pub const fn zeroed() -> MaybeUninit<T> {
         let mut u = MaybeUninit::<T>::uninit();
         // SAFETY: `u.as_mut_ptr()` points to allocated memory.
@@ -693,7 +693,7 @@ impl<T> MaybeUninit<T> {
     #[stable(feature = "maybe_uninit_extra", since = "1.60.0")]
     #[rustc_const_stable(
         feature = "const_maybe_uninit_assume_init_read",
-        since = "CURRENT_RUSTC_VERSION"
+        since = "1.75.0"
     )]
     #[inline(always)]
     #[track_caller]

library/core/src/mem/mod.rs

@@ -647,7 +647,7 @@ pub const fn needs_drop<T: ?Sized>() -> bool {
 #[allow(deprecated)]
 #[rustc_diagnostic_item = "mem_zeroed"]
 #[track_caller]
-#[rustc_const_stable(feature = "const_mem_zeroed", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_mem_zeroed", since = "1.75.0")]
 pub const unsafe fn zeroed<T>() -> T {
     // SAFETY: the caller must guarantee that an all-zero value is valid for `T`.
     unsafe {
@@ -1208,7 +1208,7 @@ impl<T> fmt::Debug for Discriminant<T> {
 /// // assert_eq!(0, unsafe { std::mem::transmute::<_, u8>(std::mem::discriminant(&unit_like)) });
 /// ```
 #[stable(feature = "discriminant_value", since = "1.21.0")]
-#[rustc_const_stable(feature = "const_discriminant", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_discriminant", since = "1.75.0")]
 #[cfg_attr(not(test), rustc_diagnostic_item = "mem_discriminant")]
 #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
 pub const fn discriminant<T>(v: &T) -> Discriminant<T> {

library/core/src/net/ip_addr.rs

@@ -425,8 +425,8 @@ impl IpAddr {
     #[inline]
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
-    #[stable(feature = "ip_to_canonical", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "ip_to_canonical", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ip_to_canonical", since = "1.75.0")]
+    #[rustc_const_stable(feature = "ip_to_canonical", since = "1.75.0")]
     pub const fn to_canonical(&self) -> IpAddr {
         match self {
             IpAddr::V4(_) => *self,
@@ -1757,7 +1757,7 @@ impl Ipv6Addr {
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
     #[stable(feature = "ipv6_to_ipv4_mapped", since = "1.63.0")]
-    #[rustc_const_stable(feature = "const_ipv6_to_ipv4_mapped", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_ipv6_to_ipv4_mapped", since = "1.75.0")]
     pub const fn to_ipv4_mapped(&self) -> Option<Ipv4Addr> {
         match self.octets() {
             [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, a, b, c, d] => {
@@ -1825,8 +1825,8 @@ impl Ipv6Addr {
     #[inline]
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
-    #[stable(feature = "ip_to_canonical", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "ip_to_canonical", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ip_to_canonical", since = "1.75.0")]
+    #[rustc_const_stable(feature = "ip_to_canonical", since = "1.75.0")]
     pub const fn to_canonical(&self) -> IpAddr {
         if let Some(mapped) = self.to_ipv4_mapped() {
             return IpAddr::V4(mapped);
@@ -2128,7 +2128,7 @@ impl From<[u16; 8]> for IpAddr {
     }
 }
 
-#[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "ip_bitops", since = "1.75.0")]
 impl Not for Ipv4Addr {
     type Output = Ipv4Addr;
 
@@ -2141,7 +2141,7 @@ impl Not for Ipv4Addr {
     }
 }
 
-#[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "ip_bitops", since = "1.75.0")]
 impl Not for &'_ Ipv4Addr {
     type Output = Ipv4Addr;
 
@@ -2151,7 +2151,7 @@ impl Not for &'_ Ipv4Addr {
     }
 }
 
-#[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "ip_bitops", since = "1.75.0")]
 impl Not for Ipv6Addr {
     type Output = Ipv6Addr;
 
@@ -2164,7 +2164,7 @@ impl Not for Ipv6Addr {
     }
 }
 
-#[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "ip_bitops", since = "1.75.0")]
 impl Not for &'_ Ipv6Addr {
     type Output = Ipv6Addr;
 
@@ -2246,13 +2246,13 @@ macro_rules! bitop_impls {
 }
 
 bitop_impls! {
-    #[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ip_bitops", since = "1.75.0")]
     impl (BitAnd, BitAndAssign) for Ipv4Addr = (bitand, bitand_assign);
-    #[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ip_bitops", since = "1.75.0")]
     impl (BitOr, BitOrAssign) for Ipv4Addr = (bitor, bitor_assign);
 
-    #[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ip_bitops", since = "1.75.0")]
     impl (BitAnd, BitAndAssign) for Ipv6Addr = (bitand, bitand_assign);
-    #[stable(feature = "ip_bitops", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "ip_bitops", since = "1.75.0")]
     impl (BitOr, BitOrAssign) for Ipv6Addr = (bitor, bitor_assign);
 }

library/core/src/option.rs

@@ -765,7 +765,7 @@ impl<T> Option<T> {
     /// ```
     #[inline]
     #[must_use]
-    #[stable(feature = "option_as_slice", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "option_as_slice", since = "1.75.0")]
     pub fn as_slice(&self) -> &[T] {
         // SAFETY: When the `Option` is `Some`, we're using the actual pointer
         // to the payload, with a length of 1, so this is equivalent to
@@ -819,7 +819,7 @@ impl<T> Option<T> {
     /// ```
     #[inline]
     #[must_use]
-    #[stable(feature = "option_as_slice", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "option_as_slice", since = "1.75.0")]
     pub fn as_mut_slice(&mut self) -> &mut [T] {
         // SAFETY: When the `Option` is `Some`, we're using the actual pointer
         // to the payload, with a length of 1, so this is equivalent to

library/core/src/ptr/const_ptr.rs

@@ -480,8 +480,8 @@ impl<T: ?Sized> *const T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_offset(self, count: isize) -> Self {
@@ -561,8 +561,8 @@ impl<T: ?Sized> *const T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     pub const fn wrapping_byte_offset(self, count: isize) -> Self {
         self.cast::<u8>().wrapping_offset(count).with_metadata_of(self)
@@ -728,8 +728,8 @@ impl<T: ?Sized> *const T {
     /// For non-`Sized` pointees this operation considers only the data pointers,
     /// ignoring the metadata.
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_offset_from<U: ?Sized>(self, origin: *const U) -> isize {
@@ -955,8 +955,8 @@ impl<T: ?Sized> *const T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_add(self, count: usize) -> Self {
@@ -1049,8 +1049,8 @@ impl<T: ?Sized> *const T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_sub(self, count: usize) -> Self {
@@ -1130,8 +1130,8 @@ impl<T: ?Sized> *const T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     pub const fn wrapping_byte_add(self, count: usize) -> Self {
         self.cast::<u8>().wrapping_add(count).with_metadata_of(self)
@@ -1209,8 +1209,8 @@ impl<T: ?Sized> *const T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     pub const fn wrapping_byte_sub(self, count: usize) -> Self {
         self.cast::<u8>().wrapping_sub(count).with_metadata_of(self)

library/core/src/ptr/mut_ptr.rs

@@ -495,8 +495,8 @@ impl<T: ?Sized> *mut T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_offset(self, count: isize) -> Self {
@@ -575,8 +575,8 @@ impl<T: ?Sized> *mut T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     pub const fn wrapping_byte_offset(self, count: isize) -> Self {
         self.cast::<u8>().wrapping_offset(count).with_metadata_of(self)
@@ -900,8 +900,8 @@ impl<T: ?Sized> *mut T {
     /// For non-`Sized` pointees this operation considers only the data pointers,
     /// ignoring the metadata.
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_offset_from<U: ?Sized>(self, origin: *const U) -> isize {
@@ -1056,8 +1056,8 @@ impl<T: ?Sized> *mut T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_add(self, count: usize) -> Self {
@@ -1150,8 +1150,8 @@ impl<T: ?Sized> *mut T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn byte_sub(self, count: usize) -> Self {
@@ -1231,8 +1231,8 @@ impl<T: ?Sized> *mut T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     pub const fn wrapping_byte_add(self, count: usize) -> Self {
         self.cast::<u8>().wrapping_add(count).with_metadata_of(self)
@@ -1310,8 +1310,8 @@ impl<T: ?Sized> *mut T {
     /// leaving the metadata untouched.
     #[must_use]
     #[inline(always)]
-    #[stable(feature = "pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_byte_offsets", since = "1.75.0")]
+    #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")]
     #[rustc_allow_const_fn_unstable(set_ptr_value)]
     pub const fn wrapping_byte_sub(self, count: usize) -> Self {
         self.cast::<u8>().wrapping_sub(count).with_metadata_of(self)