Auto merge of #146636 - Mark-Simulacrum:bootstrap-bump, r=jieyouxu

Bump bootstrap compiler to 1.91 beta

https://forge.rust-lang.org/release/process.html#default-branch-bootstrap-update-tuesday

Author: bors

compiler/rustc_const_eval/src/lib.rs

@@ -1,7 +1,6 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
-#![cfg_attr(bootstrap, feature(strict_overflow_ops))]
 #![doc(rust_logo)]
 #![feature(array_try_map)]
 #![feature(assert_matches)]

compiler/rustc_feature/src/accepted.rs

@@ -205,7 +205,7 @@ declare_features! (
     (accepted, extended_key_value_attributes, "1.54.0", Some(78835)),
     /// Allows using `aapcs`, `efiapi`, `sysv64` and `win64` as calling conventions
     /// for functions with varargs.
-    (accepted, extended_varargs_abi_support, "CURRENT_RUSTC_VERSION", Some(100189)),
+    (accepted, extended_varargs_abi_support, "1.91.0", Some(100189)),
     /// Allows resolving absolute paths as paths from other crates.
     (accepted, extern_absolute_paths, "1.30.0", Some(44660)),
     /// Allows `extern crate foo as bar;`. This puts `bar` into extern prelude.
@@ -400,7 +400,7 @@ declare_features! (
     /// Allows use of `&foo[a..b]` as a slicing syntax.
     (accepted, slicing_syntax, "1.0.0", None),
     /// Allows use of `sse4a` target feature.
-    (accepted, sse4a_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
+    (accepted, sse4a_target_feature, "1.91.0", Some(44839)),
     /// Allows elision of `'static` lifetimes in `static`s and `const`s.
     (accepted, static_in_const, "1.17.0", Some(35897)),
     /// Allows the definition recursive static items.
@@ -414,7 +414,7 @@ declare_features! (
     /// Allows the use of `#[target_feature]` on safe functions.
     (accepted, target_feature_11, "1.86.0", Some(69098)),
     /// Allows use of `tbm` target feature.
-    (accepted, tbm_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
+    (accepted, tbm_target_feature, "1.91.0", Some(44839)),
     /// Allows `fn main()` with return types which implements `Termination` (RFC 1937).
     (accepted, termination_trait, "1.26.0", Some(43301)),
     /// Allows `#[test]` functions where the return type implements `Termination` (RFC 1937).

compiler/rustc_feature/src/removed.rs

@@ -192,7 +192,7 @@ declare_features! (
     (removed, no_debug, "1.43.0", Some(29721), Some("removed due to lack of demand"), 69667),
     // Allows the use of `no_sanitize` attribute.
     /// The feature was renamed to `sanitize` and the attribute to `#[sanitize(xyz = "on|off")]`
-    (removed, no_sanitize, "CURRENT_RUSTC_VERSION", Some(39699), Some(r#"renamed to sanitize(xyz = "on|off")"#), 142681),
+    (removed, no_sanitize, "1.91.0", Some(39699), Some(r#"renamed to sanitize(xyz = "on|off")"#), 142681),
     /// Note: this feature was previously recorded in a separate
     /// `STABLE_REMOVED` list because it, uniquely, was once stable but was
     /// then removed. But there was no utility storing it separately, so now
@@ -203,7 +203,7 @@ declare_features! (
     (removed, object_safe_for_dispatch, "1.83.0", Some(43561),
      Some("renamed to `dyn_compatible_for_dispatch`"), 131511),
     /// Allows using `#[omit_gdb_pretty_printer_section]`.
-    (removed, omit_gdb_pretty_printer_section, "CURRENT_RUSTC_VERSION", None, None, 144738),
+    (removed, omit_gdb_pretty_printer_section, "1.91.0", None, None, 144738),
     /// Allows using `#[on_unimplemented(..)]` on traits.
     /// (Moved to `rustc_attrs`.)
     (removed, on_unimplemented, "1.40.0", None, None, 65794),

compiler/rustc_feature/src/unstable.rs

@@ -327,7 +327,7 @@ declare_features! (
     (unstable, m68k_target_feature, "1.85.0", Some(134328)),
     (unstable, mips_target_feature, "1.27.0", Some(44839)),
     (unstable, movrs_target_feature, "1.88.0", Some(137976)),
-    (unstable, nvptx_target_feature, "CURRENT_RUSTC_VERSION", Some(44839)),
+    (unstable, nvptx_target_feature, "1.91.0", Some(44839)),
     (unstable, powerpc_target_feature, "1.27.0", Some(44839)),
     (unstable, prfchw_target_feature, "1.78.0", Some(44839)),
     (unstable, riscv_target_feature, "1.45.0", Some(44839)),
@@ -471,7 +471,7 @@ declare_features! (
     /// Allows deref patterns.
     (incomplete, deref_patterns, "1.79.0", Some(87121)),
     /// Allows deriving the From trait on single-field structs.
-    (unstable, derive_from, "CURRENT_RUSTC_VERSION", Some(144889)),
+    (unstable, derive_from, "1.91.0", Some(144889)),
     /// Tells rustdoc to automatically generate `#[doc(cfg(...))]`.
     (unstable, doc_auto_cfg, "1.58.0", Some(43781)),
     /// Allows `#[doc(cfg(...))]`.
@@ -481,7 +481,7 @@ declare_features! (
     /// Allows `#[doc(masked)]`.
     (unstable, doc_masked, "1.21.0", Some(44027)),
     /// Allows features to allow target_feature to better interact with traits.
-    (incomplete, effective_target_features, "CURRENT_RUSTC_VERSION", Some(143352)),
+    (incomplete, effective_target_features, "1.91.0", Some(143352)),
     /// Allows the .use postfix syntax `x.use` and use closures `use |x| { ... }`
     (incomplete, ergonomic_clones, "1.87.0", Some(132290)),
     /// Allows exhaustive pattern matching on types that contain uninhabited types.
@@ -554,9 +554,9 @@ declare_features! (
     /// Allows fused `loop`/`match` for direct intraprocedural jumps.
     (incomplete, loop_match, "1.90.0", Some(132306)),
     /// Allow `macro_rules!` attribute rules
-    (unstable, macro_attr, "CURRENT_RUSTC_VERSION", Some(83527)),
+    (unstable, macro_attr, "1.91.0", Some(83527)),
     /// Allow `macro_rules!` derive rules
-    (unstable, macro_derive, "CURRENT_RUSTC_VERSION", Some(143549)),
+    (unstable, macro_derive, "1.91.0", Some(143549)),
     /// 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.
@@ -613,7 +613,7 @@ declare_features! (
     (unstable, proc_macro_hygiene, "1.30.0", Some(54727)),
     /// Allows the use of raw-dylibs on ELF platforms
     (incomplete, raw_dylib_elf, "1.87.0", Some(135694)),
-    (unstable, reborrow, "CURRENT_RUSTC_VERSION", Some(145612)),
+    (unstable, reborrow, "1.91.0", Some(145612)),
     /// 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
@@ -627,13 +627,13 @@ declare_features! (
     /// Allows `extern "rust-cold"`.
     (unstable, rust_cold_cc, "1.63.0", Some(97544)),
     /// Allows the use of the `sanitize` attribute.
-    (unstable, sanitize, "CURRENT_RUSTC_VERSION", Some(39699)),
+    (unstable, sanitize, "1.91.0", Some(39699)),
     /// Allows the use of SIMD types in functions declared in `extern` blocks.
     (unstable, simd_ffi, "1.0.0", Some(27731)),
     /// Allows specialization of implementations (RFC 1210).
     (incomplete, specialization, "1.7.0", Some(31844)),
     /// Allows using `#[rustc_align_static(...)]` on static items.
-    (unstable, static_align, "CURRENT_RUSTC_VERSION", Some(146177)),
+    (unstable, static_align, "1.91.0", Some(146177)),
     /// Allows attributes on expressions and non-item statements.
     (unstable, stmt_expr_attributes, "1.6.0", Some(15701)),
     /// Allows lints part of the strict provenance effort.
@@ -645,7 +645,7 @@ declare_features! (
     /// Allows subtrait items to shadow supertrait items.
     (unstable, supertrait_item_shadowing, "1.86.0", Some(89151)),
     /// Allows the use of target_feature when a function is marked inline(always).
-    (unstable, target_feature_inline_always, "CURRENT_RUSTC_VERSION", Some(145574)),
+    (unstable, target_feature_inline_always, "1.91.0", Some(145574)),
     /// Allows using `#[thread_local]` on `static` items.
     (unstable, thread_local, "1.0.0", Some(29594)),
     /// Allows defining `trait X = A + B;` alias items.

compiler/rustc_index/src/idx.rs

@@ -130,12 +130,6 @@ impl<I: Idx, T> IntoSliceIdx<I, [T]> for core::range::RangeFrom<I> {
 impl<I: Idx, T> IntoSliceIdx<I, [T]> for core::range::RangeInclusive<I> {
     type Output = core::range::RangeInclusive<usize>;
     #[inline]
-    #[cfg(bootstrap)]
-    fn into_slice_idx(self) -> Self::Output {
-        core::range::RangeInclusive { start: self.start.index(), end: self.end.index() }
-    }
-    #[inline]
-    #[cfg(not(bootstrap))]
     fn into_slice_idx(self) -> Self::Output {
         core::range::RangeInclusive { start: self.start.index(), last: self.last.index() }
     }

compiler/rustc_lint_defs/src/builtin.rs

@@ -2309,10 +2309,10 @@ declare_lint! {
     /// ### Example
     ///
     /// ```rust
-    /// #![cfg_attr(not(bootstrap), feature(sanitize))]
+    /// #![feature(sanitize)]
     ///
     /// #[inline(always)]
-    /// #[cfg_attr(not(bootstrap), sanitize(address = "off"))]
+    /// #[sanitize(address = "off")]
     /// fn x() {}
     ///
     /// fn main() {
@@ -4837,16 +4837,13 @@ declare_lint! {
     ///
     /// ### Example
     ///
-    #[cfg_attr(not(bootstrap), doc = "```rust,compile_fail")]
-    #[cfg_attr(bootstrap, doc = "```rust")]
+    /// ```rust,compile_fail
     /// #![doc = in_root!()]
     ///
     /// macro_rules! in_root { () => { "" } }
     ///
     /// fn main() {}
-    #[cfg_attr(not(bootstrap), doc = "```")]
-    #[cfg_attr(bootstrap, doc = "```")]
-    // ^ Needed to avoid tidy warning about odd number of backticks
+    /// ```
     ///
     /// {{produces}}
     ///

compiler/rustc_middle/src/lib.rs

@@ -29,7 +29,6 @@
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::direct_use_of_rustc_type_ir)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(bootstrap, feature(round_char_boundary))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(allocator_api)]

compiler/rustc_span/src/lib.rs

@@ -17,7 +17,6 @@
 
 // tidy-alphabetical-start
 #![allow(internal_features)]
-#![cfg_attr(bootstrap, feature(round_char_boundary))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(array_windows)]

library/alloc/src/boxed.rs

@@ -1706,7 +1706,7 @@ impl Default for Box<str> {
 }
 
 #[cfg(not(no_global_oom_handling))]
-#[stable(feature = "pin_default_impls", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "pin_default_impls", since = "1.91.0")]
 impl<T> Default for Pin<Box<T>>
 where
     T: ?Sized,

library/alloc/src/collections/btree/map.rs

@@ -1456,7 +1456,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
     /// assert_eq!(low.keys().copied().collect::<Vec<_>>(), [0, 1, 2, 3]);
     /// assert_eq!(high.keys().copied().collect::<Vec<_>>(), [4, 5, 6, 7]);
     /// ```
-    #[stable(feature = "btree_extract_if", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "btree_extract_if", since = "1.91.0")]
     pub fn extract_if<F, R>(&mut self, range: R, pred: F) -> ExtractIf<'_, K, V, R, F, A>
     where
         K: Ord,
@@ -1943,7 +1943,7 @@ impl<K, V> Default for Values<'_, K, V> {
 }
 
 /// An iterator produced by calling `extract_if` on BTreeMap.
-#[stable(feature = "btree_extract_if", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "btree_extract_if", since = "1.91.0")]
 #[must_use = "iterators are lazy and do nothing unless consumed"]
 pub struct ExtractIf<
     'a,
@@ -1976,7 +1976,7 @@ pub(super) struct ExtractIfInner<'a, K, V, R> {
     range: R,
 }
 
-#[stable(feature = "btree_extract_if", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "btree_extract_if", since = "1.91.0")]
 impl<K, V, R, F, A> fmt::Debug for ExtractIf<'_, K, V, R, F, A>
 where
     K: fmt::Debug,
@@ -1988,7 +1988,7 @@ where
     }
 }
 
-#[stable(feature = "btree_extract_if", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "btree_extract_if", since = "1.91.0")]
 impl<K, V, R, F, A: Allocator + Clone> Iterator for ExtractIf<'_, K, V, R, F, A>
 where
     K: PartialOrd,
@@ -2062,7 +2062,7 @@ impl<'a, K, V, R> ExtractIfInner<'a, K, V, R> {
     }
 }
 
-#[stable(feature = "btree_extract_if", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "btree_extract_if", since = "1.91.0")]
 impl<K, V, R, F> FusedIterator for ExtractIf<'_, K, V, R, F>
 where
     K: PartialOrd,