Auto merge of rust-lang#128331 - tgross35:bump-stage0-test1, r=<try>

[experiment] stage0 bump

Try reverting https://github.com/rust-lang/rust/pull/125473/files on top of the stage0 bump to hopefully fix the error in rust-lang#128083.

See https://rust-lang.zulipchat.com/#narrow/stream/241545-t-release/topic/1.2E81.20stage0.20bump.

Author: bors

compiler/rustc_builtin_macros/src/lib.rs

@@ -5,7 +5,6 @@
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
 #![allow(rustc::untranslatable_diagnostic)]
-#![cfg_attr(bootstrap, feature(lint_reasons))]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![doc(rust_logo)]
 #![feature(assert_matches)]

compiler/rustc_const_eval/src/check_consts/check.rs

@@ -634,10 +634,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
         trace!(
             "visit_projection_elem: place_ref={:?} elem={:?} \
             context={:?} location={:?}",
-            place_ref,
-            elem,
-            context,
-            location,
+            place_ref, elem, context, location,
         );
 
         self.super_projection_elem(place_ref, elem, context, location);

compiler/rustc_const_eval/src/interpret/operator.rs

@@ -329,11 +329,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
     ) -> InterpResult<'tcx, ImmTy<'tcx, M::Provenance>> {
         trace!(
             "Running binary op {:?}: {:?} ({}), {:?} ({})",
-            bin_op,
-            *left,
-            left.layout.ty,
-            *right,
-            right.layout.ty
+            bin_op, *left, left.layout.ty, *right, right.layout.ty
         );
 
         match left.layout.ty.kind() {

compiler/rustc_const_eval/src/interpret/terminator.rs

@@ -431,8 +431,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
         } else {
             trace!(
                 "check_argument_compat: incompatible ABIs:\ncaller: {:?}\ncallee: {:?}",
-                caller_abi,
-                callee_abi
+                caller_abi, callee_abi
             );
             return Ok(false);
         }

compiler/rustc_data_structures/src/lib.rs

@@ -10,7 +10,6 @@
 #![allow(internal_features)]
 #![allow(rustc::default_hash_types)]
 #![allow(rustc::potential_query_instability)]
-#![cfg_attr(bootstrap, feature(lint_reasons))]
 #![cfg_attr(not(parallel_compiler), feature(cell_leak))]
 #![deny(unsafe_op_in_unsafe_fn)]
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]

compiler/rustc_feature/src/accepted.rs

@@ -86,7 +86,7 @@ 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.
@@ -238,7 +238,7 @@ 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.

compiler/rustc_feature/src/removed.rs

@@ -223,7 +223,7 @@ 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.

compiler/rustc_feature/src/unstable.rs

@@ -518,7 +518,7 @@ 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
@@ -563,11 +563,11 @@ 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.
@@ -579,7 +579,7 @@ 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.
@@ -645,9 +645,9 @@ 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)),
     // !!!!    !!!!    !!!!    !!!!   !!!!    !!!!    !!!!    !!!!    !!!!    !!!!    !!!!

compiler/rustc_lint_defs/src/builtin.rs

@@ -617,8 +617,6 @@ declare_lint! {
     /// ### Example
     ///
     /// ```rust
-    /// #![cfg_attr(bootstrap, feature(lint_reasons))]
-    ///
     /// #[expect(unused_variables)]
     /// let x = 10;
     /// println!("{}", x);

compiler/rustc_parse/src/errors.rs

@@ -555,12 +555,7 @@ pub(crate) enum MissingInInForLoopSub {
         code = "in"
     )]
     InNotOf(#[primary_span] Span),
-    #[suggestion(
-        parse_add_in,
-        style = "verbose",
-        applicability = "maybe-incorrect",
-        code = " in "
-    )]
+    #[suggestion(parse_add_in, style = "verbose", applicability = "maybe-incorrect", code = " in ")]
     AddIn(#[primary_span] Span),
 }