Auto merge of #3306 - rust-lang:rustup-2024-02-19, r=RalfJung

Automatic Rustup

Author: bors

Cargo.lock

@@ -931,43 +931,19 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.14.4"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b750cb3417fd1b327431a470f388520309479ab0bf5e323505daf0290cd3850"
+checksum = "c376d08ea6aa96aafe61237c7200d1241cb177b7d3a542d791f2d118e9cbb955"
 dependencies = [
- "darling_core 0.14.4",
- "darling_macro 0.14.4",
-]
-
-[[package]]
-name = "darling"
-version = "0.20.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc5d6b04b3fd0ba9926f945895de7d806260a2d7431ba82e7edaecb043c4c6b8"
-dependencies = [
- "darling_core 0.20.5",
- "darling_macro 0.20.5",
+ "darling_core",
+ "darling_macro",
 ]
 
 [[package]]
 name = "darling_core"
-version = "0.14.4"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "109c1ca6e6b7f82cc233a97004ea8ed7ca123a9af07a8230878fcfda9b158bf0"
-dependencies = [
- "fnv",
- "ident_case",
- "proc-macro2",
- "quote",
- "strsim 0.10.0",
- "syn 1.0.109",
-]
-
-[[package]]
-name = "darling_core"
-version = "0.20.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04e48a959bcd5c761246f5d090ebc2fbf7b9cd527a492b07a67510c108f1e7e3"
+checksum = "33043dcd19068b8192064c704b3f83eb464f91f1ff527b44a4e2b08d9cdb8855"
 dependencies = [
  "fnv",
  "ident_case",
@@ -979,22 +955,11 @@ dependencies = [
 
 [[package]]
 name = "darling_macro"
-version = "0.14.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4aab4dbc9f7611d8b55048a3a16d2d010c2c8334e46304b40ac1cc14bf3b48e"
-dependencies = [
- "darling_core 0.14.4",
- "quote",
- "syn 1.0.109",
-]
-
-[[package]]
-name = "darling_macro"
-version = "0.20.5"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d1545d67a2149e1d93b7e5c7752dce5a7426eb5d1357ddcfd89336b94444f77"
+checksum = "c5a91391accf613803c2a9bf9abccdbaa07c54b4244a5b64883f9c3c137c86be"
 dependencies = [
- "darling_core 0.20.5",
+ "darling_core",
  "quote",
  "syn 2.0.48",
 ]
@@ -1036,33 +1001,33 @@ dependencies = [
 
 [[package]]
 name = "derive_builder"
-version = "0.12.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d67778784b508018359cbc8696edb3db78160bab2c2a28ba7f56ef6932997f8"
+checksum = "0350b5cb0331628a5916d6c5c0b72e97393b8b6b03b47a9284f4e7f5a405ffd7"
 dependencies = [
  "derive_builder_macro",
 ]
 
 [[package]]
 name = "derive_builder_core"
-version = "0.12.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c11bdc11a0c47bc7d37d582b5285da6849c96681023680b906673c5707af7b0f"
+checksum = "d48cda787f839151732d396ac69e3473923d54312c070ee21e9effcaa8ca0b1d"
 dependencies = [
- "darling 0.14.4",
+ "darling",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.48",
 ]
 
 [[package]]
 name = "derive_builder_macro"
-version = "0.12.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebcda35c7a396850a55ffeac740804b40ffec779b98fffbb1738f4033f0ee79e"
+checksum = "206868b8242f27cecce124c19fd88157fbd0dd334df2587f36417bafbc85097b"
 dependencies = [
  "derive_builder_core",
- "syn 1.0.109",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -1084,7 +1049,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4e8ef033054e131169b8f0f9a7af8f5533a9436fadf3c500ed547f730f07090d"
 dependencies = [
- "darling 0.20.5",
+ "darling",
  "proc-macro2",
  "quote",
  "syn 2.0.48",
@@ -6206,11 +6171,12 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "windows"
-version = "0.48.0"
+version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
+checksum = "e48a53791691ab099e5e2ad123536d0fff50652600abaf43bbf952894110d0be"
 dependencies = [
- "windows-targets 0.48.5",
+ "windows-core",
+ "windows-targets 0.52.0",
 ]
 
 [[package]]

compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs

@@ -112,8 +112,8 @@ fn start<T: Termination + 'static>(
 
 static mut NUM: u8 = 6 * 7;
 
-// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
-#[allow(static_mut_ref)]
+// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_refs` lint
+#[allow(static_mut_refs)]
 static NUM_REF: &'static u8 = unsafe { &NUM };
 
 unsafe fn zeroed<T>() -> T {

compiler/rustc_codegen_gcc/example/mini_core_hello_world.rs

@@ -99,8 +99,8 @@ fn start<T: Termination + 'static>(
 
 static mut NUM: u8 = 6 * 7;
 
-// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_ref` lint
-#[allow(static_mut_ref)]
+// FIXME: Use `SyncUnsafeCell` instead of allowing `static_mut_refs` lint
+#[allow(static_mut_refs)]
 static NUM_REF: &'static u8 = unsafe { &NUM };
 
 macro_rules! assert {

compiler/rustc_codegen_ssa/Cargo.toml

@@ -51,5 +51,5 @@ default-features = false
 features = ["read_core", "elf", "macho", "pe", "xcoff", "unaligned", "archive", "write"]
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = ["Win32_Globalization"]

compiler/rustc_codegen_ssa/src/errors.rs

@@ -362,8 +362,11 @@ impl<G: EmissionGuarantee> IntoDiagnostic<'_, G> for LinkingFailed<'_> {
         // which by now we have no way to translate.
         if contains_undefined_ref {
             diag.note(fluent::codegen_ssa_extern_funcs_not_found)
-                .note(fluent::codegen_ssa_specify_libraries_to_link)
-                .note(fluent::codegen_ssa_use_cargo_directive);
+                .note(fluent::codegen_ssa_specify_libraries_to_link);
+
+            if rustc_session::utils::was_invoked_from_cargo() {
+                diag.note(fluent::codegen_ssa_use_cargo_directive);
+            }
         }
         diag
     }

compiler/rustc_data_structures/Cargo.toml

@@ -33,7 +33,7 @@ tracing = "0.1"
 version = "0.12"
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_Storage_FileSystem",

compiler/rustc_data_structures/src/flock/windows.rs

@@ -69,7 +69,6 @@ impl Lock {
                 &mut overlapped,
             )
         }
-        .ok()
         .map_err(|e| {
             let err = io::Error::from_raw_os_error(e.code().0);
             debug!("failed acquiring file lock: {}", err);

compiler/rustc_data_structures/src/owned_slice.rs

@@ -4,7 +4,7 @@ use crate::sync::Lrc;
 // Use our fake Send/Sync traits when on not parallel compiler,
 // so that `OwnedSlice` only implements/requires Send/Sync
 // for parallel compiler builds.
-use crate::sync::{Send, Sync};
+use crate::sync;
 
 /// An owned slice.
 ///
@@ -33,7 +33,7 @@ pub struct OwnedSlice {
     //       \/
     //      ⊂(´･◡･⊂ )∘˚˳° (I am the phantom remnant of #97770)
     #[expect(dead_code)]
-    owner: Lrc<dyn Send + Sync>,
+    owner: Lrc<dyn sync::Send + sync::Sync>,
 }
 
 /// Makes an [`OwnedSlice`] out of an `owner` and a `slicer` function.
@@ -60,7 +60,7 @@ pub struct OwnedSlice {
 /// ```
 pub fn slice_owned<O, F>(owner: O, slicer: F) -> OwnedSlice
 where
-    O: Send + Sync + 'static,
+    O: sync::Send + sync::Sync + 'static,
     F: FnOnce(&O) -> &[u8],
 {
     try_slice_owned(owner, |x| Ok::<_, !>(slicer(x))).into_ok()
@@ -71,7 +71,7 @@ where
 /// See [`slice_owned`] for the infallible version.
 pub fn try_slice_owned<O, F, E>(owner: O, slicer: F) -> Result<OwnedSlice, E>
 where
-    O: Send + Sync + 'static,
+    O: sync::Send + sync::Sync + 'static,
     F: FnOnce(&O) -> Result<&[u8], E>,
 {
     // We wrap the owner of the bytes in, so it doesn't move.
@@ -139,11 +139,11 @@ impl Borrow<[u8]> for OwnedSlice {
 
 // Safety: `OwnedSlice` is conceptually `(&'self.1 [u8], Arc<dyn Send + Sync>)`, which is `Send`
 #[cfg(parallel_compiler)]
-unsafe impl Send for OwnedSlice {}
+unsafe impl sync::Send for OwnedSlice {}
 
 // Safety: `OwnedSlice` is conceptually `(&'self.1 [u8], Arc<dyn Send + Sync>)`, which is `Sync`
 #[cfg(parallel_compiler)]
-unsafe impl Sync for OwnedSlice {}
+unsafe impl sync::Sync for OwnedSlice {}
 
 #[cfg(test)]
 mod tests;

compiler/rustc_data_structures/src/profiling.rs

@@ -866,16 +866,14 @@ cfg_match! {
             use std::mem;
 
             use windows::{
-                // FIXME: change back to K32GetProcessMemoryInfo when windows crate
-                // updated to 0.49.0+ to drop dependency on psapi.dll
-                Win32::System::ProcessStatus::{GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS},
+                Win32::System::ProcessStatus::{K32GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS},
                 Win32::System::Threading::GetCurrentProcess,
             };
 
             let mut pmc = PROCESS_MEMORY_COUNTERS::default();
             let pmc_size = mem::size_of_val(&pmc);
             unsafe {
-                GetProcessMemoryInfo(
+                K32GetProcessMemoryInfo(
                     GetCurrentProcess(),
                     &mut pmc,
                     pmc_size as u32,

compiler/rustc_driver_impl/Cargo.toml

@@ -60,7 +60,7 @@ libc = "0.2"
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_System_Diagnostics_Debug",
 ]

compiler/rustc_error_codes/src/error_codes/E0796.md

@@ -1,22 +1,26 @@
-Reference of mutable static.
+You have created a reference to a mutable static.
 
 Erroneous code example:
 
 ```compile_fail,edition2024,E0796
 static mut X: i32 = 23;
-static mut Y: i32 = 24;
 
-unsafe {
-  let y = &X;
-  let ref x = X;
-  let (x, y) = (&X, &Y);
-  foo(&X);
+fn work() {
+  let _val = unsafe { X };
 }
 
-fn foo<'a>(_x: &'a i32) {}
+let x_ref = unsafe { &mut X };
+work();
+// The next line has Undefined Behavior!
+// `x_ref` is a mutable reference and allows no aliases,
+// but `work` has been reading the reference between
+// the moment `x_ref` was created and when it was used.
+// This violates the uniqueness of `x_ref`.
+*x_ref = 42;
 ```
 
-Mutable statics can be written to by multiple threads: aliasing violations or
-data races will cause undefined behavior.
+A reference to a mutable static has lifetime `'static`. This is very dangerous
+as it is easy to accidentally overlap the lifetime of that reference with
+other, conflicting accesses to the same static.
 
-Reference of mutable static is a hard error from 2024 edition.
+References to mutable statics are a hard error in the 2024 edition.

compiler/rustc_errors/Cargo.toml

@@ -30,7 +30,7 @@ unicode-width = "0.1.4"
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_Security",

compiler/rustc_errors/src/lock.rs

@@ -27,7 +27,8 @@ pub fn acquire_global_lock(name: &str) -> Box<dyn Any> {
     impl Drop for Handle {
         fn drop(&mut self) {
             unsafe {
-                CloseHandle(self.0);
+                // FIXME can panic here
+                CloseHandle(self.0).unwrap();
             }
         }
     }
@@ -37,7 +38,8 @@ pub fn acquire_global_lock(name: &str) -> Box<dyn Any> {
     impl Drop for Guard {
         fn drop(&mut self) {
             unsafe {
-                ReleaseMutex((self.0).0);
+                // FIXME can panic here
+                ReleaseMutex((self.0).0).unwrap();
             }
         }
     }

compiler/rustc_expand/messages.ftl

@@ -61,6 +61,11 @@ expand_invalid_cfg_multiple_predicates = multiple `cfg` predicates are specified
 expand_invalid_cfg_no_parens = `cfg` is not followed by parentheses
 expand_invalid_cfg_no_predicate = `cfg` predicate is not specified
 expand_invalid_cfg_predicate_literal = `cfg` predicate key cannot be a literal
+
+expand_invalid_fragment_specifier =
+    invalid fragment specifier `{$fragment}`
+    .help = {$help}
+
 expand_macro_body_stability =
     macros cannot have body stability attributes
     .label = invalid body stability attribute

compiler/rustc_expand/src/errors.rs

@@ -408,3 +408,13 @@ pub struct DuplicateMatcherBinding {
     #[label(expand_label2)]
     pub prev: Span,
 }
+
+#[derive(Diagnostic)]
+#[diag(expand_invalid_fragment_specifier)]
+#[help]
+pub struct InvalidFragmentSpecifier {
+    #[primary_span]
+    pub span: Span,
+    pub fragment: Ident,
+    pub help: String,
+}

compiler/rustc_expand/src/lib.rs

@@ -6,6 +6,7 @@
 #![feature(if_let_guard)]
 #![feature(let_chains)]
 #![feature(macro_metavar_expr)]
+#![feature(map_try_insert)]
 #![feature(proc_macro_diagnostic)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_span)]