Auto merge of rust-lang#135268 - pietroalbini:pa-bump-stage0, r=Mark-Simulacrum

Master bootstrap update

Part of the release process.

r? `@Mark-Simulacrum`

Author: bors

alloc/src/boxed.rs

@@ -2028,8 +2028,7 @@ impl<Args: Tuple, F: Fn<Args> + ?Sized, A: Allocator> Fn<Args> for Box<F, A> {
     }
 }
 
-#[cfg_attr(bootstrap, unstable(feature = "async_closure", issue = "62290"))]
-#[cfg_attr(not(bootstrap), stable(feature = "async_closure", since = "CURRENT_RUSTC_VERSION"))]
+#[stable(feature = "async_closure", since = "1.85.0")]
 impl<Args: Tuple, F: AsyncFnOnce<Args> + ?Sized, A: Allocator> AsyncFnOnce<Args> for Box<F, A> {
     type Output = F::Output;
     type CallOnceFuture = F::CallOnceFuture;
@@ -2039,8 +2038,7 @@ impl<Args: Tuple, F: AsyncFnOnce<Args> + ?Sized, A: Allocator> AsyncFnOnce<Args>
     }
 }
 
-#[cfg_attr(bootstrap, unstable(feature = "async_closure", issue = "62290"))]
-#[cfg_attr(not(bootstrap), stable(feature = "async_closure", since = "CURRENT_RUSTC_VERSION"))]
+#[stable(feature = "async_closure", since = "1.85.0")]
 impl<Args: Tuple, F: AsyncFnMut<Args> + ?Sized, A: Allocator> AsyncFnMut<Args> for Box<F, A> {
     type CallRefFuture<'a>
         = F::CallRefFuture<'a>
@@ -2052,8 +2050,7 @@ impl<Args: Tuple, F: AsyncFnMut<Args> + ?Sized, A: Allocator> AsyncFnMut<Args> f
     }
 }
 
-#[cfg_attr(bootstrap, unstable(feature = "async_closure", issue = "62290"))]
-#[cfg_attr(not(bootstrap), stable(feature = "async_closure", since = "CURRENT_RUSTC_VERSION"))]
+#[stable(feature = "async_closure", since = "1.85.0")]
 impl<Args: Tuple, F: AsyncFn<Args> + ?Sized, A: Allocator> AsyncFn<Args> for Box<F, A> {
     extern "rust-call" fn async_call(&self, args: Args) -> Self::CallRefFuture<'_> {
         F::async_call(self, args)

alloc/src/lib.rs

@@ -91,7 +91,6 @@
 //
 // Library features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(async_closure))]
 #![cfg_attr(test, feature(str_as_str))]
 #![feature(alloc_layout_extra)]
 #![feature(allocator_api)]

core/src/alloc/layout.rs

@@ -178,7 +178,7 @@ impl Layout {
     /// allocate backing structure for `T` (which could be a trait
     /// or other unsized type like a slice).
     #[stable(feature = "alloc_layout", since = "1.28.0")]
-    #[rustc_const_stable(feature = "const_alloc_layout", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_alloc_layout", since = "1.85.0")]
     #[must_use]
     #[inline]
     pub const fn for_value<T: ?Sized>(t: &T) -> Self {
@@ -252,7 +252,7 @@ impl Layout {
     /// Returns an error if the combination of `self.size()` and the given
     /// `align` violates the conditions listed in [`Layout::from_size_align`].
     #[stable(feature = "alloc_layout_manipulation", since = "1.44.0")]
-    #[rustc_const_stable(feature = "const_alloc_layout", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_alloc_layout", since = "1.85.0")]
     #[inline]
     pub const fn align_to(&self, align: usize) -> Result<Self, LayoutError> {
         if let Some(align) = Alignment::new(align) {
@@ -327,7 +327,7 @@ impl Layout {
     /// This is equivalent to adding the result of `padding_needed_for`
     /// to the layout's current size.
     #[stable(feature = "alloc_layout_manipulation", since = "1.44.0")]
-    #[rustc_const_stable(feature = "const_alloc_layout", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_alloc_layout", since = "1.85.0")]
     #[must_use = "this returns a new `Layout`, \
                   without modifying the original"]
     #[inline]
@@ -426,7 +426,7 @@ impl Layout {
     /// # assert_eq!(repr_c(&[u64, u32, u16, u32]), Ok((s, vec![0, 8, 12, 16])));
     /// ```
     #[stable(feature = "alloc_layout_manipulation", since = "1.44.0")]
-    #[rustc_const_stable(feature = "const_alloc_layout", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_alloc_layout", since = "1.85.0")]
     #[inline]
     pub const fn extend(&self, next: Self) -> Result<(Self, usize), LayoutError> {
         let new_align = Alignment::max(self.align, next.align);
@@ -489,7 +489,7 @@ impl Layout {
     /// On arithmetic overflow or when the total size would exceed
     /// `isize::MAX`, returns `LayoutError`.
     #[stable(feature = "alloc_layout_manipulation", since = "1.44.0")]
-    #[rustc_const_stable(feature = "const_alloc_layout", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_alloc_layout", since = "1.85.0")]
     #[inline]
     pub const fn array<T>(n: usize) -> Result<Self, LayoutError> {
         // Reduce the amount of code we need to monomorphize per `T`.

core/src/arch.rs

@@ -65,7 +65,6 @@ pub macro global_asm("assembly template", $(operands,)* $(options($(option),*))?
 // When stabilizing this, update the comment on `core::intrinsics::breakpoint`.
 #[unstable(feature = "breakpoint", issue = "133724")]
 #[inline(always)]
-#[cfg(not(bootstrap))]
 pub fn breakpoint() {
     core::intrinsics::breakpoint();
 }

core/src/future/async_drop.rs

@@ -133,9 +133,8 @@ pub trait AsyncDrop {
 }
 
 #[lang = "async_destruct"]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 trait AsyncDestruct {
     type AsyncDestructor: Future<Output = ()>;
 }

core/src/hash/mod.rs

@@ -752,11 +752,8 @@ pub struct BuildHasherDefault<H>(marker::PhantomData<fn() -> H>);
 
 impl<H> BuildHasherDefault<H> {
     /// Creates a new BuildHasherDefault for Hasher `H`.
-    #[stable(feature = "build_hasher_default_const_new", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(
-        feature = "build_hasher_default_const_new",
-        since = "CURRENT_RUSTC_VERSION"
-    )]
+    #[stable(feature = "build_hasher_default_const_new", since = "1.85.0")]
+    #[rustc_const_stable(feature = "build_hasher_default_const_new", since = "1.85.0")]
     pub const fn new() -> Self {
         BuildHasherDefault(marker::PhantomData)
     }

core/src/intrinsics/mod.rs

@@ -1382,22 +1382,10 @@ pub unsafe fn prefetch_write_instruction<T>(_data: *const T, _locality: i32) {
 #[rustc_intrinsic]
 #[rustc_intrinsic_must_be_overridden]
 #[rustc_nounwind]
-#[cfg(not(bootstrap))]
 pub fn breakpoint() {
     unreachable!()
 }
 
-/// Executes a breakpoint trap, for inspection by a debugger.
-///
-/// This intrinsic does not have a stable counterpart.
-#[rustc_intrinsic]
-#[rustc_intrinsic_must_be_overridden]
-#[rustc_nounwind]
-#[cfg(bootstrap)]
-pub unsafe fn breakpoint() {
-    unreachable!()
-}
-
 /// Magic intrinsic that derives its meaning from attributes
 /// attached to the function.
 ///
@@ -3323,8 +3311,8 @@ pub const fn mul_with_overflow<T: Copy>(_x: T, _y: T) -> (T, bool) {
 #[unstable(feature = "core_intrinsics", issue = "none")]
 #[rustc_const_unstable(feature = "const_carrying_mul_add", issue = "85532")]
 #[rustc_nounwind]
-#[cfg_attr(not(bootstrap), rustc_intrinsic)]
-#[cfg_attr(not(bootstrap), miri::intrinsic_fallback_is_spec)]
+#[rustc_intrinsic]
+#[miri::intrinsic_fallback_is_spec]
 pub const fn carrying_mul_add<T: ~const fallback::CarryingMulAdd<Unsigned = U>, U>(
     multiplier: T,
     multiplicand: T,
@@ -3969,21 +3957,6 @@ pub const fn is_val_statically_known<T: Copy>(_arg: T) -> bool {
     false
 }
 
-#[rustc_nounwind]
-#[inline]
-#[rustc_intrinsic]
-#[rustc_intrinsic_const_stable_indirect]
-#[rustc_allow_const_fn_unstable(const_swap_nonoverlapping)] // this is anyway not called since CTFE implements the intrinsic
-#[cfg(bootstrap)]
-pub const unsafe fn typed_swap<T>(x: *mut T, y: *mut T) {
-    // SAFETY: The caller provided single non-overlapping items behind
-    // pointers, so swapping them with `count: 1` is fine.
-    unsafe { ptr::swap_nonoverlapping(x, y, 1) };
-}
-
-#[cfg(bootstrap)]
-pub use typed_swap as typed_swap_nonoverlapping;
-
 /// Non-overlapping *typed* swap of a single value.
 ///
 /// The codegen backends will replace this with a better implementation when
@@ -3999,7 +3972,6 @@ pub use typed_swap as typed_swap_nonoverlapping;
 #[rustc_intrinsic]
 #[rustc_intrinsic_const_stable_indirect]
 #[rustc_allow_const_fn_unstable(const_swap_nonoverlapping)] // this is anyway not called since CTFE implements the intrinsic
-#[cfg(not(bootstrap))]
 pub const unsafe fn typed_swap_nonoverlapping<T>(x: *mut T, y: *mut T) {
     // SAFETY: The caller provided single non-overlapping items behind
     // pointers, so swapping them with `count: 1` is fine.

core/src/intrinsics/simd.rs

@@ -623,7 +623,6 @@ extern "rust-intrinsic" {
     /// and others do not.
     ///
     /// `T` must be a vector of floats.
-    #[cfg(not(bootstrap))]
     #[rustc_nounwind]
     pub fn simd_relaxed_fma<T>(x: T, y: T, z: T) -> T;
 

core/src/iter/traits/collect.rs

@@ -472,7 +472,7 @@ macro_rules! spec_tuple_impl {
             #[doc(fake_variadic)]
             #[doc = "This trait is implemented for tuples up to twelve items long. The `impl`s for \
                      1- and 3- through 12-ary tuples were stabilized after 2-tuples, in \
-                     CURRENT_RUSTC_VERSION."]
+                     1.85.0."]
             => ($ty_name, $var_name, $extend_ty_name, $cnt),
         );
     };

core/src/lib.rs

@@ -107,7 +107,6 @@
 //
 // Library features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(do_not_recommend))]
 #![feature(array_ptr_get)]
 #![feature(asm_experimental_arch)]
 #![feature(bigint_helper_methods)]

core/src/marker.rs

@@ -141,9 +141,8 @@ unsafe impl<T: Sync + ?Sized> Send for &T {}
 )]
 #[fundamental] // for Default, for example, which requires that `[T]: !Default` be evaluatable
 #[rustc_specialization_trait]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 #[rustc_coinductive]
 pub trait Sized {
     // Empty.
@@ -183,9 +182,8 @@ pub trait Sized {
 /// [^1]: Formerly known as *object safe*.
 #[unstable(feature = "unsize", issue = "18598")]
 #[lang = "unsize"]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 pub trait Unsize<T: ?Sized> {
     // Empty.
 }
@@ -819,9 +817,8 @@ impl<T: ?Sized> StructuralPartialEq for PhantomData<T> {}
     reason = "this trait is unlikely to ever be stabilized, use `mem::discriminant` instead"
 )]
 #[lang = "discriminant_kind"]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 pub trait DiscriminantKind {
     /// The type of the discriminant, which must satisfy the trait
     /// bounds required by `mem::Discriminant`.
@@ -962,10 +959,9 @@ marker_impls! {
 #[unstable(feature = "const_destruct", issue = "133214")]
 #[lang = "destruct"]
 #[rustc_on_unimplemented(message = "can't drop `{Self}`", append_const_msg)]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
-#[cfg_attr(not(bootstrap), const_trait)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
+#[const_trait]
 pub trait Destruct {}
 
 /// A marker for tuple types.
@@ -975,9 +971,8 @@ pub trait Destruct {}
 #[unstable(feature = "tuple_trait", issue = "none")]
 #[lang = "tuple_trait"]
 #[diagnostic::on_unimplemented(message = "`{Self}` is not a tuple")]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 pub trait Tuple {}
 
 /// A marker for pointer-like types.
@@ -996,10 +991,9 @@ pub trait Tuple {}
     message = "`{Self}` needs to have the same ABI as a pointer",
     label = "`{Self}` needs to be a pointer-like type"
 )]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_do_not_implement_via_object]
 pub trait PointerLike {}
 
-#[cfg(not(bootstrap))]
 marker_impls! {
     #[unstable(feature = "pointer_like_trait", issue = "none")]
     PointerLike for
@@ -1086,9 +1080,8 @@ marker_impls! {
     reason = "internal trait for implementing various traits for all function pointers"
 )]
 #[lang = "fn_ptr_trait"]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 pub trait FnPtr: Copy + Clone {
     /// Returns the address of the function pointer.
     #[lang = "fn_ptr_addr"]
@@ -1099,7 +1092,6 @@ pub trait FnPtr: Copy + Clone {
 #[rustc_builtin_macro(CoercePointee, attributes(pointee))]
 #[allow_internal_unstable(dispatch_from_dyn, coerce_unsized, unsize)]
 #[unstable(feature = "derive_coerce_pointee", issue = "123430")]
-#[cfg(not(bootstrap))]
 pub macro CoercePointee($item:item) {
     /* compiler built-in */
 }

core/src/mem/maybe_uninit.rs

@@ -507,7 +507,7 @@ impl<T> MaybeUninit<T> {
     /// ```
     #[inline(always)]
     #[stable(feature = "maybe_uninit_write", since = "1.55.0")]
-    #[rustc_const_stable(feature = "const_maybe_uninit_write", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_maybe_uninit_write", since = "1.85.0")]
     pub const fn write(&mut self, val: T) -> &mut T {
         *self = MaybeUninit::new(val);
         // SAFETY: We just initialized this value.

core/src/mem/mod.rs

@@ -333,7 +333,7 @@ pub const fn size_of<T>() -> usize {
 #[inline]
 #[must_use]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_size_of_val", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_size_of_val", since = "1.85.0")]
 #[cfg_attr(not(test), rustc_diagnostic_item = "mem_size_of_val")]
 pub const fn size_of_val<T: ?Sized>(val: &T) -> usize {
     // SAFETY: `val` is a reference, so it's a valid raw pointer
@@ -484,7 +484,7 @@ pub const fn align_of<T>() -> usize {
 #[inline]
 #[must_use]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_align_of_val", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_align_of_val", since = "1.85.0")]
 #[allow(deprecated)]
 pub const fn align_of_val<T: ?Sized>(val: &T) -> usize {
     // SAFETY: val is a reference, so it's a valid raw pointer
@@ -725,7 +725,7 @@ pub unsafe fn uninitialized<T>() -> T {
 /// ```
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_swap", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_swap", since = "1.85.0")]
 #[rustc_diagnostic_item = "mem_swap"]
 pub const fn swap<T>(x: &mut T, y: &mut T) {
     // SAFETY: `&mut` guarantees these are typed readable and writable

core/src/mem/transmutability.rs

@@ -84,9 +84,8 @@ use crate::marker::{ConstParamTy_, UnsizedConstParamTy};
 /// `usize` is stable, but not portable.
 #[unstable(feature = "transmutability", issue = "99571")]
 #[lang = "transmute_trait"]
-#[cfg_attr(bootstrap, rustc_deny_explicit_impl(implement_via_object = false))]
-#[cfg_attr(not(bootstrap), rustc_deny_explicit_impl)]
-#[cfg_attr(not(bootstrap), rustc_do_not_implement_via_object)]
+#[rustc_deny_explicit_impl]
+#[rustc_do_not_implement_via_object]
 #[rustc_coinductive]
 pub unsafe trait TransmuteFrom<Src, const ASSUME: Assume = { Assume::NOTHING }>
 where