Auto merge of #128031 - Mark-Simulacrum:beta-next, r=Mark-Simulacrum

[beta] promote master

https://forge.rust-lang.org/release/process.html#beta-to-stable

r? `@Mark-Simulacrum`

17 files changed, 39 insertions, 33 deletions

diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs
index e671c768239..f86a65698aa 100644
--- a/compiler/rustc_feature/src/accepted.rs
+++ b/compiler/rustc_feature/src/accepted.rs
@@ -85,7 +85,7 @@ declare_features! (
     /// Allows `c"foo"` literals.
     (accepted, c_str_literals, "1.77.0", Some(105723)),
     /// Allows `extern "C-unwind" fn` to enable unwinding across ABI boundaries and treat `extern "C" fn` as nounwind.
-    (accepted, c_unwind, "CURRENT_RUSTC_VERSION", Some(74990)),
+    (accepted, c_unwind, "1.81.0", Some(74990)),
     /// Allows `#[cfg_attr(predicate, multiple, attributes, here)]`.
     (accepted, cfg_attr_multi, "1.33.0", Some(54881)),
     /// Allows the use of `#[cfg(doctest)]`, set when rustdoc is collecting doctests.
@@ -237,7 +237,7 @@ declare_features! (
     /// Allows `let...else` statements.
     (accepted, let_else, "1.65.0", Some(87335)),
     /// Allows using `reason` in lint attributes and the `#[expect(lint)]` lint check.
-    (accepted, lint_reasons, "CURRENT_RUSTC_VERSION", Some(54503)),
+    (accepted, lint_reasons, "1.81.0", Some(54503)),
     /// Allows `break {expr}` with a value inside `loop`s.
     (accepted, loop_break_value, "1.19.0", Some(37339)),
     /// Allows use of `?` as the Kleene "at most one" operator in macros.
diff --git a/compiler/rustc_feature/src/removed.rs b/compiler/rustc_feature/src/removed.rs
index 80a108d2fc8..67f250a0614 100644
--- a/compiler/rustc_feature/src/removed.rs
+++ b/compiler/rustc_feature/src/removed.rs
@@ -222,7 +222,7 @@ declare_features! (
     (removed, unwind_attributes, "1.56.0", Some(58760), Some("use the C-unwind ABI instead")),
     (removed, visible_private_types, "1.0.0", None, None),
     /// Allows `extern "wasm" fn`
-    (removed, wasm_abi, "CURRENT_RUSTC_VERSION", Some(83788),
+    (removed, wasm_abi, "1.81.0", Some(83788),
      Some("non-standard wasm ABI is no longer supported")),
     // !!!!    !!!!    !!!!    !!!!   !!!!    !!!!    !!!!    !!!!    !!!!    !!!!    !!!!
     // Features are listed in alphabetical order. Tidy will fail if you don't keep it this way.
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index 1db3774222a..43373cd88ac 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -515,7 +515,7 @@ declare_features! (
     /// Give access to additional metadata about declarative macro meta-variables.
     (unstable, macro_metavar_expr, "1.61.0", Some(83527)),
     /// Provides a way to concatenate identifiers using metavariable expressions.
-    (unstable, macro_metavar_expr_concat, "CURRENT_RUSTC_VERSION", Some(124225)),
+    (unstable, macro_metavar_expr_concat, "1.81.0", Some(124225)),
     /// Allows `#[marker]` on certain traits allowing overlapping implementations.
     (unstable, marker_trait_attr, "1.30.0", Some(29864)),
     /// Allows exhaustive pattern matching on types that contain uninhabited types in cases that are
@@ -560,11 +560,11 @@ declare_features! (
     /// Allows using multiple nested field accesses in offset_of!
     (unstable, offset_of_nested, "1.77.0", Some(120140)),
     /// Allows using fields with slice type in offset_of!
-    (unstable, offset_of_slice, "CURRENT_RUSTC_VERSION", Some(126151)),
+    (unstable, offset_of_slice, "1.81.0", Some(126151)),
     /// Allows using `#[optimize(X)]`.
     (unstable, optimize_attribute, "1.34.0", Some(54882)),
     /// Allows specifying nop padding on functions for dynamic patching.
-    (unstable, patchable_function_entry, "CURRENT_RUSTC_VERSION", Some(123115)),
+    (unstable, patchable_function_entry, "1.81.0", Some(123115)),
     /// Allows postfix match `expr.match { ... }`
     (unstable, postfix_match, "1.79.0", Some(121618)),
     /// Allows `use<'a, 'b, A, B>` in `impl Trait + use<...>` for precise capture of generic args.
@@ -576,7 +576,7 @@ declare_features! (
     /// Makes `&` and `&mut` patterns eat only one layer of references in Rust 2024.
     (incomplete, ref_pat_eat_one_layer_2024, "1.79.0", Some(123076)),
     /// Makes `&` and `&mut` patterns eat only one layer of references in Rust 2024—structural variant
-    (incomplete, ref_pat_eat_one_layer_2024_structural, "CURRENT_RUSTC_VERSION", Some(123076)),
+    (incomplete, ref_pat_eat_one_layer_2024_structural, "1.81.0", Some(123076)),
     /// Allows using the `#[register_tool]` attribute.
     (unstable, register_tool, "1.41.0", Some(66079)),
     /// Allows the `#[repr(i128)]` attribute for enums.
@@ -639,9 +639,9 @@ declare_features! (
     /// Allows using the `#[used(linker)]` (or `#[used(compiler)]`) attribute.
     (unstable, used_with_arg, "1.60.0", Some(93798)),
     /// Allows use of x86 `AMX` target-feature attributes and intrinsics
-    (unstable, x86_amx_intrinsics, "CURRENT_RUSTC_VERSION", Some(126622)),
+    (unstable, x86_amx_intrinsics, "1.81.0", Some(126622)),
     /// Allows use of the `xop` target-feature
-    (unstable, xop_target_feature, "CURRENT_RUSTC_VERSION", Some(127208)),
+    (unstable, xop_target_feature, "1.81.0", Some(127208)),
     /// Allows `do yeet` expressions
     (unstable, yeet_expr, "1.62.0", Some(96373)),
     // !!!!    !!!!    !!!!    !!!!   !!!!    !!!!    !!!!    !!!!    !!!!    !!!!    !!!!
diff --git a/library/core/src/char/methods.rs b/library/core/src/char/methods.rs
index 4186565c131..6b415406838 100644
--- a/library/core/src/char/methods.rs
+++ b/library/core/src/char/methods.rs
@@ -225,7 +225,7 @@ impl char {
     #[stable(feature = "assoc_char_funcs", since = "1.52.0")]
     #[rustc_const_stable(
         feature = "const_char_from_u32_unchecked",
-        since = "CURRENT_RUSTC_VERSION"
+        since = "1.81.0"
     )]
     #[must_use]
     #[inline]
diff --git a/library/core/src/char/mod.rs b/library/core/src/char/mod.rs
index 3c641a2e01c..895b5f523e7 100644
--- a/library/core/src/char/mod.rs
+++ b/library/core/src/char/mod.rs
@@ -121,7 +121,7 @@ pub const fn from_u32(i: u32) -> Option<char> {
 /// Converts a `u32` to a `char`, ignoring validity. Use [`char::from_u32_unchecked`].
 /// instead.
 #[stable(feature = "char_from_unchecked", since = "1.5.0")]
-#[rustc_const_stable(feature = "const_char_from_u32_unchecked", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_char_from_u32_unchecked", since = "1.81.0")]
 #[must_use]
 #[inline]
 pub const unsafe fn from_u32_unchecked(i: u32) -> char {
diff --git a/library/core/src/error.rs b/library/core/src/error.rs
index ca8983d4cbc..9dc29a6e646 100644
--- a/library/core/src/error.rs
+++ b/library/core/src/error.rs
@@ -1,5 +1,5 @@
 #![doc = include_str!("error.md")]
-#![stable(feature = "error_in_core", since = "CURRENT_RUSTC_VERSION")]
+#![stable(feature = "error_in_core", since = "1.81.0")]
 
 #[cfg(test)]
 mod tests;
diff --git a/library/core/src/ffi/c_str.rs b/library/core/src/ffi/c_str.rs
index 563f0a324e3..523e9e2ce70 100644
--- a/library/core/src/ffi/c_str.rs
+++ b/library/core/src/ffi/c_str.rs
@@ -278,7 +278,7 @@ impl CStr {
     #[inline] // inline is necessary for codegen to see strlen.
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_cstr_from_ptr", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_cstr_from_ptr", since = "1.81.0")]
     pub const unsafe fn from_ptr<'a>(ptr: *const c_char) -> &'a CStr {
         // SAFETY: The caller has provided a pointer that points to a valid C
         // string with a NUL terminator less than `isize::MAX` from `ptr`.
@@ -540,7 +540,7 @@ impl CStr {
     #[must_use]
     #[doc(alias("len", "strlen"))]
     #[stable(feature = "cstr_count_bytes", since = "1.79.0")]
-    #[rustc_const_stable(feature = "const_cstr_from_ptr", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_cstr_from_ptr", since = "1.81.0")]
     pub const fn count_bytes(&self) -> usize {
         self.inner.len() - 1
     }
@@ -741,7 +741,7 @@ impl AsRef<CStr> for CStr {
 /// located within `isize::MAX` from `ptr`.
 #[inline]
 #[unstable(feature = "cstr_internals", issue = "none")]
-#[rustc_const_stable(feature = "const_cstr_from_ptr", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_cstr_from_ptr", since = "1.81.0")]
 #[rustc_allow_const_fn_unstable(const_eval_select)]
 const unsafe fn strlen(ptr: *const c_char) -> usize {
     const fn strlen_ct(s: *const c_char) -> usize {
diff --git a/library/core/src/hint.rs b/library/core/src/hint.rs
index b3e36e6fbc4..a4289065226 100644
--- a/library/core/src/hint.rs
+++ b/library/core/src/hint.rs
@@ -195,8 +195,8 @@ pub const unsafe fn unreachable_unchecked() -> ! {
 #[track_caller]
 #[inline(always)]
 #[doc(alias = "assume")]
-#[stable(feature = "hint_assert_unchecked", since = "CURRENT_RUSTC_VERSION")]
-#[rustc_const_stable(feature = "hint_assert_unchecked", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "hint_assert_unchecked", since = "1.81.0")]
+#[rustc_const_stable(feature = "hint_assert_unchecked", since = "1.81.0")]
 pub const unsafe fn assert_unchecked(cond: bool) {
     // SAFETY: The caller promised `cond` is true.
     unsafe {
diff --git a/library/core/src/panic.rs b/library/core/src/panic.rs
index 37c338dd9b7..45c2d9c66b9 100644
--- a/library/core/src/panic.rs
+++ b/library/core/src/panic.rs
@@ -12,7 +12,7 @@ use crate::any::Any;
 pub use self::location::Location;
 #[stable(feature = "panic_hooks", since = "1.10.0")]
 pub use self::panic_info::PanicInfo;
-#[stable(feature = "panic_info_message", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "panic_info_message", since = "1.81.0")]
 pub use self::panic_info::PanicMessage;
 #[stable(feature = "catch_unwind", since = "1.9.0")]
 pub use self::unwind_safe::{AssertUnwindSafe, RefUnwindSafe, UnwindSafe};
diff --git a/library/core/src/panic/panic_info.rs b/library/core/src/panic/panic_info.rs
index 6bbb9c30171..00e874e6922 100644
--- a/library/core/src/panic/panic_info.rs
+++ b/library/core/src/panic/panic_info.rs
@@ -24,7 +24,7 @@ pub struct PanicInfo<'a> {
 /// that were given to the `panic!()` macro.
 ///
 /// See [`PanicInfo::message`].
-#[stable(feature = "panic_info_message", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "panic_info_message", since = "1.81.0")]
 pub struct PanicMessage<'a> {
     message: fmt::Arguments<'a>,
 }
@@ -57,7 +57,7 @@ impl<'a> PanicInfo<'a> {
     /// }
     /// ```
     #[must_use]
-    #[stable(feature = "panic_info_message", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "panic_info_message", since = "1.81.0")]
     pub fn message(&self) -> PanicMessage<'_> {
         PanicMessage { message: self.message }
     }
@@ -164,7 +164,7 @@ impl<'a> PanicMessage<'a> {
     /// For most cases with placeholders, this function will return `None`.
     ///
     /// See [`fmt::Arguments::as_str`] for details.
-    #[stable(feature = "panic_info_message", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "panic_info_message", since = "1.81.0")]
     #[rustc_const_unstable(feature = "const_arguments_as_str", issue = "103900")]
     #[must_use]
     #[inline]
@@ -173,7 +173,7 @@ impl<'a> PanicMessage<'a> {
     }
 }
 
-#[stable(feature = "panic_info_message", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "panic_info_message", since = "1.81.0")]
 impl Display for PanicMessage<'_> {
     #[inline]
     fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -181,7 +181,7 @@ impl Display for PanicMessage<'_> {
     }
 }
 
-#[stable(feature = "panic_info_message", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "panic_info_message", since = "1.81.0")]
 impl fmt::Debug for PanicMessage<'_> {
     #[inline]
     fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
diff --git a/library/core/src/sync/atomic.rs b/library/core/src/sync/atomic.rs
index efc07f38f68..37050a74c67 100644
--- a/library/core/src/sync/atomic.rs
+++ b/library/core/src/sync/atomic.rs
@@ -1080,7 +1080,7 @@ impl AtomicBool {
     /// assert_eq!(foo.load(Ordering::SeqCst), true);
     /// ```
     #[inline]
-    #[stable(feature = "atomic_bool_fetch_not", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "atomic_bool_fetch_not", since = "1.81.0")]
     #[cfg(target_has_atomic = "8")]
     #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces
     pub fn fetch_not(&self, order: Ordering) -> bool {
diff --git a/library/core/src/time.rs b/library/core/src/time.rs
index d66f558078e..33d27b219f3 100644
--- a/library/core/src/time.rs
+++ b/library/core/src/time.rs
@@ -625,8 +625,8 @@ impl Duration {
     /// assert_eq!(Duration::new(100, 0).abs_diff(Duration::new(80, 0)), Duration::new(20, 0));
     /// assert_eq!(Duration::new(100, 400_000_000).abs_diff(Duration::new(110, 0)), Duration::new(9, 600_000_000));
     /// ```
-    #[stable(feature = "duration_abs_diff", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "duration_abs_diff", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "duration_abs_diff", since = "1.81.0")]
+    #[rustc_const_stable(feature = "duration_abs_diff", since = "1.81.0")]
     #[rustc_allow_const_fn_unstable(const_option)]
     #[must_use = "this returns the result of the operation, \
                   without modifying the original"]
diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs
index 6413b3515ec..0a64a36e326 100644
--- a/library/std/src/fs.rs
+++ b/library/std/src/fs.rs
@@ -2749,7 +2749,7 @@ impl AsInnerMut<fs_imp::DirBuilder> for DirBuilder {
 /// ```
 ///
 /// [`Path::exists`]: crate::path::Path::exists
-#[stable(feature = "fs_try_exists", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "fs_try_exists", since = "1.81.0")]
 #[inline]
 pub fn exists<P: AsRef<Path>>(path: P) -> io::Result<bool> {
     fs_imp::exists(path.as_ref())
diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs
index 1345a30361e..8c4f7e690d1 100644
--- a/library/std/src/io/mod.rs
+++ b/library/std/src/io/mod.rs
@@ -1266,7 +1266,7 @@ impl<'a> IoSliceMut<'a> {
     /// buf.advance(3);
     /// assert_eq!(buf.deref(), [1; 5].as_ref());
     /// ```
-    #[stable(feature = "io_slice_advance", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "io_slice_advance", since = "1.81.0")]
     #[inline]
     pub fn advance(&mut self, n: usize) {
         self.0.advance(n)
@@ -1305,7 +1305,7 @@ impl<'a> IoSliceMut<'a> {
     /// assert_eq!(bufs[0].deref(), [2; 14].as_ref());
     /// assert_eq!(bufs[1].deref(), [3; 8].as_ref());
     /// ```
-    #[stable(feature = "io_slice_advance", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "io_slice_advance", since = "1.81.0")]
     #[inline]
     pub fn advance_slices(bufs: &mut &mut [IoSliceMut<'a>], n: usize) {
         // Number of buffers to remove.
@@ -1406,7 +1406,7 @@ impl<'a> IoSlice<'a> {
     /// buf.advance(3);
     /// assert_eq!(buf.deref(), [1; 5].as_ref());
     /// ```
-    #[stable(feature = "io_slice_advance", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "io_slice_advance", since = "1.81.0")]
     #[inline]
     pub fn advance(&mut self, n: usize) {
         self.0.advance(n)
@@ -1444,7 +1444,7 @@ impl<'a> IoSlice<'a> {
     /// IoSlice::advance_slices(&mut bufs, 10);
     /// assert_eq!(bufs[0].deref(), [2; 14].as_ref());
     /// assert_eq!(bufs[1].deref(), [3; 8].as_ref());
-    #[stable(feature = "io_slice_advance", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "io_slice_advance", since = "1.81.0")]
     #[inline]
     pub fn advance_slices(bufs: &mut &mut [IoSlice<'a>], n: usize) {
         // Number of buffers to remove.
diff --git a/library/std/src/panic.rs b/library/std/src/panic.rs
index c5d1a893ee8..e024ac2816a 100644
--- a/library/std/src/panic.rs
+++ b/library/std/src/panic.rs
@@ -39,7 +39,7 @@ pub type PanicInfo<'a> = PanicHookInfo<'a>;
 /// ```
 ///
 /// [`set_hook`]: ../../std/panic/fn.set_hook.html
-#[stable(feature = "panic_hook_info", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "panic_hook_info", since = "1.81.0")]
 #[derive(Debug)]
 pub struct PanicHookInfo<'a> {
     payload: &'a (dyn Any + Send),
diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs
index d2910f8edc6..a8555b2c367 100644
--- a/src/bootstrap/src/lib.rs
+++ b/src/bootstrap/src/lib.rs
@@ -1511,6 +1511,12 @@ Executed at: {executed_at}"#,
     }
 
     fn beta_prerelease_version(&self) -> u32 {
+        if self.config.dry_run() {
+            // Dry run doesn't actually execute a git command, which will panic when trying to parse
+            // the outputs.
+            return 0;
+        }
+
         fn extract_beta_rev_from_file<P: AsRef<Path>>(version_file: P) -> Option<String> {
             let version = fs::read_to_string(version_file).ok()?;
 
diff --git a/src/ci/channel b/src/ci/channel
index bf867e0ae5b..65b2df87f7d 100644
--- a/src/ci/channel
+++ b/src/ci/channel
@@ -1 +1 @@
-nightly
+beta