Auto merge of #112066 - Mark-Simulacrum:beta-next, r=Mark-Simulacrum

[beta] 1.71.0 branch

* Swap out CURRENT_RUSTC_VERSION markers
* Bump CI channel
* Backport #112026

r? `@Mark-Simulacrum`

Author: bors

compiler/rustc_feature/src/accepted.rs

@@ -131,7 +131,7 @@ declare_features! (
     /// Allows `crate` in paths.
     (accepted, crate_in_paths, "1.30.0", Some(45477), None),
     /// Allows using `#[debugger_visualizer]` attribute.
-    (accepted, debugger_visualizer, "CURRENT_RUSTC_VERSION", Some(95939), None),
+    (accepted, debugger_visualizer, "1.71.0", Some(95939), None),
     /// Allows rustc to inject a default alloc_error_handler
     (accepted, default_alloc_error_handler, "1.68.0", Some(66741), None),
     /// Allows using assigning a default type to type parameters in algebraic data type definitions.
@@ -281,7 +281,7 @@ declare_features! (
     /// Allows use of the postfix `?` operator in expressions.
     (accepted, question_mark, "1.13.0", Some(31436), None),
     /// Allows the use of raw-dylibs (RFC 2627).
-    (accepted, raw_dylib, "CURRENT_RUSTC_VERSION", Some(58713), None),
+    (accepted, raw_dylib, "1.71.0", Some(58713), None),
     /// Allows keywords to be escaped for use as identifiers.
     (accepted, raw_identifiers, "1.30.0", Some(48589), None),
     /// Allows relaxing the coherence rules such that

compiler/rustc_feature/src/active.rs

@@ -165,7 +165,7 @@ declare_features! (
     /// Allows the `multiple_supertrait_upcastable` lint.
     (active, multiple_supertrait_upcastable, "1.69.0", None, None),
     /// Allow negative trait bounds. This is an internal-only feature for testing the trait solver!
-    (incomplete, negative_bounds, "CURRENT_RUSTC_VERSION", None, None),
+    (incomplete, negative_bounds, "1.71.0", None, None),
     /// Allows using `#[omit_gdb_pretty_printer_section]`.
     (active, omit_gdb_pretty_printer_section, "1.5.0", None, None),
     /// Allows using `#[prelude_import]` on glob `use` items.
@@ -314,15 +314,15 @@ declare_features! (
     /// Allows async functions to be declared, implemented, and used in traits.
     (active, async_fn_in_trait, "1.66.0", Some(91611), None),
     /// Allows builtin # foo() syntax
-    (active, builtin_syntax, "CURRENT_RUSTC_VERSION", Some(110680), None),
+    (active, builtin_syntax, "1.71.0", Some(110680), None),
     /// Allows `c"foo"` literals.
-    (active, c_str_literals, "CURRENT_RUSTC_VERSION", Some(105723), None),
+    (active, c_str_literals, "1.71.0", Some(105723), None),
     /// Treat `extern "C"` function as nounwind.
     (active, c_unwind, "1.52.0", Some(74990), None),
     /// Allows using C-variadics.
     (active, c_variadic, "1.34.0", Some(44930), None),
     /// Allows the use of `#[cfg(overflow_checks)` to check if integer overflow behaviour.
-    (active, cfg_overflow_checks, "CURRENT_RUSTC_VERSION", Some(111466), None),
+    (active, cfg_overflow_checks, "1.71.0", Some(111466), None),
     /// Allows the use of `#[cfg(sanitize = "option")]`; set when -Zsanitizer is used.
     (active, cfg_sanitize, "1.41.0", Some(39699), None),
     /// Allows `cfg(target_abi = "...")`.
@@ -338,7 +338,7 @@ declare_features! (
     /// Allow conditional compilation depending on rust version
     (active, cfg_version, "1.45.0", Some(64796), None),
     /// Allows to use the `#[cfi_encoding = ""]` attribute.
-    (active, cfi_encoding, "CURRENT_RUSTC_VERSION", Some(89653), None),
+    (active, cfi_encoding, "1.71.0", Some(89653), None),
     /// Allows `for<...>` on closures and generators.
     (active, closure_lifetime_binder, "1.64.0", Some(97362), None),
     /// Allows `#[track_caller]` on closures and generators.

compiler/rustc_mir_transform/src/check_alignment.rs

@@ -75,6 +75,14 @@ struct PointerFinder<'tcx, 'a> {
 }
 
 impl<'tcx, 'a> Visitor<'tcx> for PointerFinder<'tcx, 'a> {
+    fn visit_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location) {
+        if let Rvalue::AddressOf(..) = rvalue {
+            // Ignore dereferences inside of an AddressOf
+            return;
+        }
+        self.super_rvalue(rvalue, location);
+    }
+
     fn visit_place(&mut self, place: &Place<'tcx>, context: PlaceContext, _location: Location) {
         if let PlaceContext::NonUse(_) = context {
             return;

library/alloc/src/string.rs

@@ -2624,7 +2624,7 @@ impl ToString for String {
 }
 
 #[cfg(not(no_global_oom_handling))]
-#[stable(feature = "fmt_arguments_to_string_specialization", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "fmt_arguments_to_string_specialization", since = "1.71.0")]
 impl ToString for fmt::Arguments<'_> {
     #[inline]
     fn to_string(&self) -> String {

library/core/src/ffi/c_str.rs

@@ -531,8 +531,8 @@ impl CStr {
     /// # }
     /// ```
     #[inline]
-    #[stable(feature = "cstr_is_empty", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "cstr_is_empty", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "cstr_is_empty", since = "1.71.0")]
+    #[rustc_const_stable(feature = "cstr_is_empty", since = "1.71.0")]
     pub const fn is_empty(&self) -> bool {
         // SAFETY: We know there is at least one byte; for empty strings it
         // is the NUL terminator.

library/core/src/hash/mod.rs

@@ -695,7 +695,7 @@ pub trait BuildHasher {
     ///     bh.hash_one(&OrderAmbivalentPair(2, 10))
     /// );
     /// ```
-    #[stable(feature = "build_hasher_simple_hash_one", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "build_hasher_simple_hash_one", since = "1.71.0")]
     fn hash_one<T: Hash>(&self, x: T) -> u64
     where
         Self: Sized,

library/core/src/intrinsics.rs

@@ -2260,7 +2260,7 @@ extern "rust-intrinsic" {
     /// This intrinsic can *only* be called where the pointer is a local without
     /// projections (`read_via_copy(ptr)`, not `read_via_copy(*ptr)`) so that it
     /// trivially obeys runtime-MIR rules about derefs in operands.
-    #[rustc_const_stable(feature = "const_ptr_read", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")]
     #[rustc_nounwind]
     pub fn read_via_copy<T>(ptr: *const T) -> T;
 

library/core/src/num/nonzero.rs

@@ -769,8 +769,8 @@ macro_rules! nonzero_signed_operations {
                 /// ```
                 #[must_use]
                 #[inline]
-                #[stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
-                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
+                #[stable(feature = "nonzero_negation_ops", since = "1.71.0")]
+                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "1.71.0")]
                 pub const fn is_positive(self) -> bool {
                     self.get().is_positive()
                 }
@@ -794,8 +794,8 @@ macro_rules! nonzero_signed_operations {
                 /// ```
                 #[must_use]
                 #[inline]
-                #[stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
-                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
+                #[stable(feature = "nonzero_negation_ops", since = "1.71.0")]
+                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "1.71.0")]
                 pub const fn is_negative(self) -> bool {
                     self.get().is_negative()
                 }
@@ -819,8 +819,8 @@ macro_rules! nonzero_signed_operations {
                 /// # }
                 /// ```
                 #[inline]
-                #[stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
-                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
+                #[stable(feature = "nonzero_negation_ops", since = "1.71.0")]
+                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "1.71.0")]
                 pub const fn checked_neg(self) -> Option<$Ty> {
                     if let Some(result) = self.get().checked_neg() {
                         // SAFETY: negation of nonzero cannot yield zero values.
@@ -851,8 +851,8 @@ macro_rules! nonzero_signed_operations {
                 /// # }
                 /// ```
                 #[inline]
-                #[stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
-                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
+                #[stable(feature = "nonzero_negation_ops", since = "1.71.0")]
+                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "1.71.0")]
                 pub const fn overflowing_neg(self) -> ($Ty, bool) {
                     let (result, overflow) = self.get().overflowing_neg();
                     // SAFETY: negation of nonzero cannot yield zero values.
@@ -884,8 +884,8 @@ macro_rules! nonzero_signed_operations {
                 /// # }
                 /// ```
                 #[inline]
-                #[stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
-                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
+                #[stable(feature = "nonzero_negation_ops", since = "1.71.0")]
+                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "1.71.0")]
                 pub const fn saturating_neg(self) -> $Ty {
                     if let Some(result) = self.checked_neg() {
                         return result;
@@ -916,16 +916,16 @@ macro_rules! nonzero_signed_operations {
                 /// # }
                 /// ```
                 #[inline]
-                #[stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
-                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "CURRENT_RUSTC_VERSION")]
+                #[stable(feature = "nonzero_negation_ops", since = "1.71.0")]
+                #[rustc_const_stable(feature = "nonzero_negation_ops", since = "1.71.0")]
                 pub const fn wrapping_neg(self) -> $Ty {
                     let result = self.get().wrapping_neg();
                     // SAFETY: negation of nonzero cannot yield zero values.
                     unsafe { $Ty::new_unchecked(result) }
                 }
             }
 
-            #[stable(feature = "signed_nonzero_neg", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "signed_nonzero_neg", since = "1.71.0")]
             impl Neg for $Ty {
                 type Output = $Ty;
 
@@ -937,7 +937,7 @@ macro_rules! nonzero_signed_operations {
             }
 
             forward_ref_unop! { impl Neg, neg for $Ty,
-                #[stable(feature = "signed_nonzero_neg", since = "CURRENT_RUSTC_VERSION")] }
+                #[stable(feature = "signed_nonzero_neg", since = "1.71.0")] }
         )+
     }
 }

library/core/src/ptr/const_ptr.rs

@@ -1195,7 +1195,7 @@ impl<T: ?Sized> *const T {
     ///
     /// [`ptr::read`]: crate::ptr::read()
     #[stable(feature = "pointer_methods", since = "1.26.0")]
-    #[rustc_const_stable(feature = "const_ptr_read", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")]
     #[inline]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn read(self) -> T
@@ -1236,7 +1236,7 @@ impl<T: ?Sized> *const T {
     ///
     /// [`ptr::read_unaligned`]: crate::ptr::read_unaligned()
     #[stable(feature = "pointer_methods", since = "1.26.0")]
-    #[rustc_const_stable(feature = "const_ptr_read", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")]
     #[inline]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub const unsafe fn read_unaligned(self) -> T

library/core/src/ptr/mod.rs

@@ -1139,7 +1139,7 @@ pub const unsafe fn replace<T>(dst: *mut T, mut src: T) -> T {
 /// [valid]: self#safety
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_ptr_read", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")]
 #[rustc_allow_const_fn_unstable(const_mut_refs, const_maybe_uninit_as_mut_ptr)]
 #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
 pub const unsafe fn read<T>(src: *const T) -> T {
@@ -1256,7 +1256,7 @@ pub const unsafe fn read<T>(src: *const T) -> T {
 /// ```
 #[inline]
 #[stable(feature = "ptr_unaligned", since = "1.17.0")]
-#[rustc_const_stable(feature = "const_ptr_read", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")]
 #[rustc_allow_const_fn_unstable(const_mut_refs, const_maybe_uninit_as_mut_ptr)]
 #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
 pub const unsafe fn read_unaligned<T>(src: *const T) -> T {