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-rw-r--r--compiler/rustc_const_eval/src/check_consts/ops.rs2
-rw-r--r--compiler/rustc_data_structures/src/lib.rs1
-rw-r--r--compiler/rustc_driver_impl/src/lib.rs17
-rw-r--r--compiler/rustc_error_messages/src/lib.rs1
-rw-r--r--compiler/rustc_feature/src/lib.rs1
-rw-r--r--compiler/rustc_hir_analysis/src/lib.rs1
-rw-r--r--compiler/rustc_interface/src/lib.rs1
-rw-r--r--compiler/rustc_lint_defs/src/builtin.rs10
-rw-r--r--compiler/rustc_session/src/lib.rs1
-rw-r--r--compiler/rustc_trait_selection/src/traits/select/mod.rs6
10 files changed, 15 insertions, 26 deletions
diff --git a/compiler/rustc_const_eval/src/check_consts/ops.rs b/compiler/rustc_const_eval/src/check_consts/ops.rs
index 8406e0f4876..90b622cae65 100644
--- a/compiler/rustc_const_eval/src/check_consts/ops.rs
+++ b/compiler/rustc_const_eval/src/check_consts/ops.rs
@@ -309,7 +309,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> {
         }
 
         if let ConstContext::Static(_) = ccx.const_kind() {
-            err.note("consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell");
+            err.note("consider wrapping this expression in `std::sync::LazyLock::new(|| ...)`");
         }
 
         err
diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs
index 85b5a3cdb7c..9781aae22eb 100644
--- a/compiler/rustc_data_structures/src/lib.rs
+++ b/compiler/rustc_data_structures/src/lib.rs
@@ -24,7 +24,6 @@
 #![feature(extend_one)]
 #![feature(hash_raw_entry)]
 #![feature(hasher_prefixfree_extras)]
-#![feature(lazy_cell)]
 #![feature(lint_reasons)]
 #![feature(macro_metavar_expr)]
 #![feature(map_try_insert)]
diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index 5532eff7be6..2bd58680eef 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -57,7 +57,7 @@ use std::process::{self, Command, Stdio};
 use std::str;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, OnceLock};
-use std::time::{Instant, SystemTime};
+use std::time::{Duration, Instant, SystemTime};
 use time::OffsetDateTime;
 use tracing::trace;
 
@@ -1502,14 +1502,13 @@ pub fn init_logger(early_dcx: &EarlyDiagCtxt, cfg: rustc_log::LoggerConfig) {
 pub fn install_ctrlc_handler() {
     #[cfg(not(target_family = "wasm"))]
     ctrlc::set_handler(move || {
-        // Indicate that we have been signaled to stop. If we were already signaled, exit
-        // immediately. In our interpreter loop we try to consult this value often, but if for
-        // whatever reason we don't get to that check or the cleanup we do upon finding that
-        // this bool has become true takes a long time, the exit here will promptly exit the
-        // process on the second Ctrl-C.
-        if CTRL_C_RECEIVED.swap(true, Ordering::Relaxed) {
-            std::process::exit(1);
-        }
+        // Indicate that we have been signaled to stop, then give the rest of the compiler a bit of
+        // time to check CTRL_C_RECEIVED and run its own shutdown logic, but after a short amount
+        // of time exit the process. This sleep+exit ensures that even if nobody is checking
+        // CTRL_C_RECEIVED, the compiler exits reasonably promptly.
+        CTRL_C_RECEIVED.store(true, Ordering::Relaxed);
+        std::thread::sleep(Duration::from_millis(100));
+        std::process::exit(1);
     })
     .expect("Unable to install ctrlc handler");
 }
diff --git a/compiler/rustc_error_messages/src/lib.rs b/compiler/rustc_error_messages/src/lib.rs
index 2a8f4222064..08388c5a58e 100644
--- a/compiler/rustc_error_messages/src/lib.rs
+++ b/compiler/rustc_error_messages/src/lib.rs
@@ -1,6 +1,5 @@
 #![doc(rust_logo)]
 #![feature(rustdoc_internals)]
-#![feature(lazy_cell)]
 #![feature(rustc_attrs)]
 #![feature(type_alias_impl_trait)]
 #![allow(internal_features)]
diff --git a/compiler/rustc_feature/src/lib.rs b/compiler/rustc_feature/src/lib.rs
index 36ef8fe7816..9cbf836ec76 100644
--- a/compiler/rustc_feature/src/lib.rs
+++ b/compiler/rustc_feature/src/lib.rs
@@ -14,7 +14,6 @@
 #![allow(internal_features)]
 #![feature(rustdoc_internals)]
 #![doc(rust_logo)]
-#![feature(lazy_cell)]
 
 mod accepted;
 mod builtin_attrs;
diff --git a/compiler/rustc_hir_analysis/src/lib.rs b/compiler/rustc_hir_analysis/src/lib.rs
index d1e50e13894..8fe81851f93 100644
--- a/compiler/rustc_hir_analysis/src/lib.rs
+++ b/compiler/rustc_hir_analysis/src/lib.rs
@@ -68,7 +68,6 @@ This API is completely unstable and subject to change.
 #![feature(iter_intersperse)]
 #![feature(let_chains)]
 #![feature(never_type)]
-#![feature(lazy_cell)]
 #![feature(slice_partition_dedup)]
 #![feature(try_blocks)]
 
diff --git a/compiler/rustc_interface/src/lib.rs b/compiler/rustc_interface/src/lib.rs
index c1d460ddd08..8b1d9b706ca 100644
--- a/compiler/rustc_interface/src/lib.rs
+++ b/compiler/rustc_interface/src/lib.rs
@@ -1,5 +1,4 @@
 #![feature(decl_macro)]
-#![feature(lazy_cell)]
 #![feature(let_chains)]
 #![feature(thread_spawn_unchecked)]
 #![feature(try_blocks)]
diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs
index 617fe99ef6a..747b7292a19 100644
--- a/compiler/rustc_lint_defs/src/builtin.rs
+++ b/compiler/rustc_lint_defs/src/builtin.rs
@@ -1316,10 +1316,8 @@ declare_lint! {
     /// * If you are trying to perform a one-time initialization of a global:
     ///     * If the value can be computed at compile-time, consider using
     ///       const-compatible values (see [Constant Evaluation]).
-    ///     * For more complex single-initialization cases, consider using a
-    ///       third-party crate, such as [`lazy_static`] or [`once_cell`].
-    ///     * If you are using the [nightly channel], consider the new
-    ///       [`lazy`] module in the standard library.
+    ///     * For more complex single-initialization cases, consider using
+    ///       [`std::sync::LazyLock`].
     /// * If you truly need a mutable global, consider using a [`static`],
     ///   which has a variety of options:
     ///   * Simple data types can be directly defined and mutated with an
@@ -1334,9 +1332,7 @@ declare_lint! {
     /// [Constant Evaluation]: https://doc.rust-lang.org/reference/const_eval.html
     /// [`static`]: https://doc.rust-lang.org/reference/items/static-items.html
     /// [mutable `static`]: https://doc.rust-lang.org/reference/items/static-items.html#mutable-statics
-    /// [`lazy`]: https://doc.rust-lang.org/nightly/std/lazy/index.html
-    /// [`lazy_static`]: https://crates.io/crates/lazy_static
-    /// [`once_cell`]: https://crates.io/crates/once_cell
+    /// [`std::sync::LazyLock`]: https://doc.rust-lang.org/stable/std/sync/struct.LazyLock.html
     /// [`atomic`]: https://doc.rust-lang.org/std/sync/atomic/index.html
     /// [`Mutex`]: https://doc.rust-lang.org/std/sync/struct.Mutex.html
     pub CONST_ITEM_MUTATION,
diff --git a/compiler/rustc_session/src/lib.rs b/compiler/rustc_session/src/lib.rs
index ce866906e1e..cb02fbdfee9 100644
--- a/compiler/rustc_session/src/lib.rs
+++ b/compiler/rustc_session/src/lib.rs
@@ -1,5 +1,4 @@
 #![feature(let_chains)]
-#![feature(lazy_cell)]
 #![feature(option_get_or_insert_default)]
 #![feature(rustc_attrs)]
 #![feature(map_many_mut)]
diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs
index 4a94643d908..696b1c15115 100644
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -2539,7 +2539,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
         let InferOk { obligations, .. } = self
             .infcx
             .at(&cause, obligation.param_env)
-            .eq(DefineOpaqueTypes::No, placeholder_obligation_trait_ref, impl_trait_ref)
+            .eq(DefineOpaqueTypes::Yes, placeholder_obligation_trait_ref, impl_trait_ref)
             .map_err(|e| {
                 debug!("match_impl: failed eq_trait_refs due to `{}`", e.to_string(self.tcx()))
             })?;
@@ -2594,7 +2594,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                         self.infcx
                             .at(&obligation.cause, obligation.param_env)
                             .eq(
-                                DefineOpaqueTypes::No,
+                                DefineOpaqueTypes::Yes,
                                 upcast_principal.map_bound(|trait_ref| {
                                     ty::ExistentialTraitRef::erase_self_ty(tcx, trait_ref)
                                 }),
@@ -2631,7 +2631,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                     nested.extend(
                         self.infcx
                             .at(&obligation.cause, obligation.param_env)
-                            .eq(DefineOpaqueTypes::No, source_projection, target_projection)
+                            .eq(DefineOpaqueTypes::Yes, source_projection, target_projection)
                             .map_err(|_| SelectionError::Unimplemented)?
                             .into_obligations(),
                     );
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2025-10-27 02:39:29 +0000