Rollup of 5 pull requests

compiler/rustc_driver_impl/src/lib.rs

@@ -64,6 +64,7 @@ use rustc_session::lint::{Lint, LintId};
 use rustc_session::output::{CRATE_TYPES, collect_crate_types, invalid_output_for_target};
 use rustc_session::{EarlyDiagCtxt, Session, config, filesearch};
 use rustc_span::FileName;
+use rustc_span::def_id::LOCAL_CRATE;
 use rustc_target::json::ToJson;
 use rustc_target::spec::{Target, TargetTuple};
 use time::OffsetDateTime;
@@ -392,14 +393,10 @@ pub fn run_compiler(at_args: &[String], callbacks: &mut (dyn Callbacks + Send))
 }
 
 fn dump_feature_usage_metrics(tcxt: TyCtxt<'_>, metrics_dir: &Path) {
-    let output_filenames = tcxt.output_filenames(());
-    let mut metrics_file_name = std::ffi::OsString::from("unstable_feature_usage_metrics-");
-    let mut metrics_path = output_filenames.with_directory_and_extension(metrics_dir, "json");
-    let metrics_file_stem =
-        metrics_path.file_name().expect("there should be a valid default output filename");
-    metrics_file_name.push(metrics_file_stem);
-    metrics_path.pop();
-    metrics_path.push(metrics_file_name);
+    let hash = tcxt.crate_hash(LOCAL_CRATE);
+    let crate_name = tcxt.crate_name(LOCAL_CRATE);
+    let metrics_file_name = format!("unstable_feature_usage_metrics-{crate_name}-{hash}.json");
+    let metrics_path = metrics_dir.join(metrics_file_name);
     if let Err(error) = tcxt.features().dump_feature_usage_metrics(metrics_path) {
         // FIXME(yaahc): once metrics can be enabled by default we will want "failure to emit
         // default metrics" to only produce a warning when metrics are enabled by default and emit

compiler/rustc_middle/src/ty/context.rs

@@ -1804,10 +1804,15 @@ impl<'tcx> TyCtxt<'tcx> {
         // - needs_metadata: for putting into crate metadata.
         // - instrument_coverage: for putting into coverage data (see
         //   `hash_mir_source`).
+        // - metrics_dir: metrics use the strict version hash in the filenames
+        //   for dumped metrics files to prevent overwriting distinct metrics
+        //   for similar source builds (may change in the future, this is part
+        //   of the proof of concept impl for the metrics initiative project goal)
         cfg!(debug_assertions)
             || self.sess.opts.incremental.is_some()
             || self.needs_metadata()
             || self.sess.instrument_coverage()
+            || self.sess.opts.unstable_opts.metrics_dir.is_some()
     }
 
     #[inline]

library/alloctests/tests/lib.rs

@@ -63,6 +63,7 @@ mod fmt;
 mod heap;
 mod linked_list;
 mod misc_tests;
+mod num;
 mod rc;
 mod slice;
 mod sort;

library/alloctests/tests/num.rs

@@ -0,0 +1,69 @@
+use std::fmt::{Debug, Display};
+use std::str::FromStr;
+
+fn assert_nb<Int: ToString + FromStr + Debug + Display + Eq>(value: Int) {
+    let s = value.to_string();
+    let s2 = format!("s: {}.", value);
+
+    assert_eq!(format!("s: {s}."), s2);
+    let Ok(ret) = Int::from_str(&s) else {
+        panic!("failed to convert into to string");
+    };
+    assert_eq!(ret, value);
+}
+
+macro_rules! uint_to_s {
+    ($($fn_name:ident, $int:ident,)+) => {
+        $(
+            #[test]
+            fn $fn_name() {
+                assert_nb::<$int>($int::MIN);
+                assert_nb::<$int>($int::MAX);
+                assert_nb::<$int>(1);
+                assert_nb::<$int>($int::MIN / 2);
+                assert_nb::<$int>($int::MAX / 2);
+            }
+        )+
+    }
+}
+macro_rules! int_to_s {
+    ($($fn_name:ident, $int:ident,)+) => {
+        $(
+            #[test]
+            fn $fn_name() {
+                assert_nb::<$int>($int::MIN);
+                assert_nb::<$int>($int::MAX);
+                assert_nb::<$int>(1);
+                assert_nb::<$int>(0);
+                assert_nb::<$int>(-1);
+                assert_nb::<$int>($int::MIN / 2);
+                assert_nb::<$int>($int::MAX / 2);
+            }
+        )+
+    }
+}
+
+int_to_s!(
+    test_i8_to_string,
+    i8,
+    test_i16_to_string,
+    i16,
+    test_i32_to_string,
+    i32,
+    test_i64_to_string,
+    i64,
+    test_i128_to_string,
+    i128,
+);
+uint_to_s!(
+    test_u8_to_string,
+    u8,
+    test_u16_to_string,
+    u16,
+    test_u32_to_string,
+    u32,
+    test_u64_to_string,
+    u64,
+    test_u128_to_string,
+    u128,
+);

src/doc/rustc/src/platform-support/TEMPLATE.md

@@ -6,7 +6,8 @@ One-sentence description of the target (e.g. CPU, OS)
 
 ## Target maintainers
 
-- Some Person, https://github.com/...
+[@Ghost](https://github.com/Ghost)
+[@octocat](https://github.com/octocat)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/aarch64-nintendo-switch-freestanding.md

@@ -4,10 +4,10 @@
 
 Nintendo Switch with pure-Rust toolchain.
 
-## Designated Developers
+## Target Maintainers
 
-* [@leo60228](https://github.com/leo60228)
-* [@jam1garner](https://github.com/jam1garner)
+[@leo60228](https://github.com/leo60228)
+[@jam1garner](https://github.com/jam1garner)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/aarch64-unknown-teeos.md

@@ -20,8 +20,8 @@ TEEOS is open source in progress. [MORE about](https://gitee.com/opentrustee-gro
 
 ## Target maintainers
 
-- Petrochenkov Vadim
-- Sword-Destiny
+[@petrochenkov](https://github.com/petrochenkov)
+[@Sword-Destiny](https://github.com/Sword-Destiny)
 
 ## Setup
 We use OpenHarmony SDK for TEEOS.

src/doc/rustc/src/platform-support/aix.md

@@ -6,8 +6,8 @@ Rust for AIX operating system, currently only 64-bit PowerPC is supported.
 
 ## Target maintainers
 
-- David Tenty `[email protected]`, https://github.com/daltenty
-- Chris Cambly, `[email protected]`, https://github.com/gilamn5tr
+[@daltenty](https://github.com/daltenty)
+[@gilamn5tr](https://github.com/gilamn5tr)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/amdgcn-amd-amdhsa.md

@@ -6,7 +6,7 @@ AMD GPU target for compute/HSA (Heterogeneous System Architecture).
 
 ## Target maintainers
 
-- [@Flakebi](https://github.com/Flakebi)
+[@Flakebi](https://github.com/Flakebi)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/android.md

@@ -8,9 +8,9 @@
 
 ## Target maintainers
 
-- Chris Wailes ([@chriswailes](https://github.com/chriswailes))
-- Matthew Maurer ([@maurer](https://github.com/maurer))
-- Martin Geisler ([@mgeisler](https://github.com/mgeisler))
+[@chriswailes](https://github.com/chriswailes)
+[@maurer](https://github.com/maurer)
+[@mgeisler](https://github.com/mgeisler)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/apple-darwin.md

@@ -9,8 +9,8 @@ Apple macOS targets.
 
 ## Target maintainers
 
-- [@thomcc](https://github.com/thomcc)
-- [@madsmtm](https://github.com/madsmtm)
+[@thomcc](https://github.com/thomcc)
+[@madsmtm](https://github.com/madsmtm)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/apple-ios-macabi.md

@@ -9,9 +9,9 @@ Apple Mac Catalyst targets.
 
 ## Target maintainers
 
-- [@badboy](https://github.com/badboy)
-- [@BlackHoleFox](https://github.com/BlackHoleFox)
-- [@madsmtm](https://github.com/madsmtm)
+[@badboy](https://github.com/badboy)
+[@BlackHoleFox](https://github.com/BlackHoleFox)
+[@madsmtm](https://github.com/madsmtm)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/apple-ios.md

@@ -15,9 +15,9 @@ Apple iOS / iPadOS targets.
 
 ## Target maintainers
 
-- [@badboy](https://github.com/badboy)
-- [@deg4uss3r](https://github.com/deg4uss3r)
-- [@madsmtm](https://github.com/madsmtm)
+[@badboy](https://github.com/badboy)
+[@deg4uss3r](https://github.com/deg4uss3r)
+[@madsmtm](https://github.com/madsmtm)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/apple-tvos.md

@@ -10,8 +10,8 @@ Apple tvOS targets.
 
 ## Target maintainers
 
-- [@thomcc](https://github.com/thomcc)
-- [@madsmtm](https://github.com/madsmtm)
+[@thomcc](https://github.com/thomcc)
+[@madsmtm](https://github.com/madsmtm)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/apple-visionos.md

@@ -9,8 +9,8 @@ Apple visionOS / xrOS targets.
 
 ## Target maintainers
 
-- [@agg23](https://github.com/agg23)
-- [@madsmtm](https://github.com/madsmtm)
+[@agg23](https://github.com/agg23)
+[@madsmtm](https://github.com/madsmtm)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/apple-watchos.md

@@ -12,10 +12,10 @@ Apple watchOS targets.
 
 ## Target maintainers
 
-- [@deg4uss3r](https://github.com/deg4uss3r)
-- [@vladimir-ea](https://github.com/vladimir-ea)
-- [@leohowell](https://github.com/leohowell)
-- [@madsmtm](https://github.com/madsmtm)
+[@deg4uss3r](https://github.com/deg4uss3r)
+[@vladimir-ea](https://github.com/vladimir-ea)
+[@leohowell](https://github.com/leohowell)
+[@madsmtm](https://github.com/madsmtm)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/arm64e-apple-darwin.md

@@ -6,7 +6,7 @@ ARM64e macOS (11.0+, Big Sur+)
 
 ## Target maintainers
 
-- Artyom Tetyukhin ([@arttet](https://github.com/arttet))
+[@arttet](https://github.com/arttet)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/arm64e-apple-ios.md

@@ -6,7 +6,7 @@ ARM64e iOS (14.0+)
 
 ## Target maintainers
 
-- Artyom Tetyukhin ([@arttet](https://github.com/arttet))
+[@arttet](https://github.com/arttet)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/arm64e-apple-tvos.md

@@ -6,7 +6,7 @@ ARM64e tvOS (10.0+)
 
 ## Target maintainers
 
-- Artyom Tetyukhin ([@arttet](https://github.com/arttet))
+[@arttet](https://github.com/arttet)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/arm64ec-pc-windows-msvc.md

@@ -7,7 +7,7 @@ applications on AArch64 Windows 11. See <https://learn.microsoft.com/en-us/windo
 
 ## Target maintainers
 
-- [@dpaoliello](https://github.com/dpaoliello)
+[@dpaoliello](https://github.com/dpaoliello)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/armeb-unknown-linux-gnueabi.md

@@ -10,7 +10,8 @@ BE8 architecture retains the same little-endian ordered code-stream used by conv
 BE8 architecture is the default big-endian architecture for Arm since [Armv6](https://developer.arm.com/documentation/101754/0616/armlink-Reference/armlink-Command-line-Options/--be8?lang=en). It's predecessor, used for Armv4 and Armv5 devices was [BE32](https://developer.arm.com/documentation/dui0474/j/linker-command-line-options/--be32). On Armv6 architecture, endianness can be configured via [system registers](https://developer.arm.com/documentation/ddi0290/g/unaligned-and-mixed-endian-data-access-support/mixed-endian-access-support/interaction-between-the-bus-protocol-and-the-core-endianness). However, BE32 was withdrawn for [Armv7](https://developer.arm.com/documentation/ddi0406/cb/Appendixes/Deprecated-and-Obsolete-Features/Obsolete-features/Support-for-BE-32-endianness-model) onwards.
 
 ## Target Maintainers
-* [@WorksButNotTested](https://github.com/WorksButNotTested)
+
+[@WorksButNotTested](https://github.com/WorksButNotTested)
 
 ## Requirements
 The target is cross-compiled. This target supports `std` in the normal way (indeed only nominal changes are required from the standard Arm configuration).

src/doc/rustc/src/platform-support/armv4t-none-eabi.md

@@ -11,8 +11,8 @@ overall performance.
 
 ## Target Maintainers
 
-* [@Lokathor](https://github.com/lokathor)
-* [@corwinkuiper](https://github.com/corwinkuiper)
+[@Lokathor](https://github.com/lokathor)
+[@corwinkuiper](https://github.com/corwinkuiper)
 
 ## Testing
 

src/doc/rustc/src/platform-support/armv5te-none-eabi.md

@@ -13,7 +13,7 @@ See [`arm-none-eabi`](arm-none-eabi.md) for information applicable to all
 
 ## Target Maintainers
 
-* [@QuinnPainter](https://github.com/QuinnPainter)
+[@QuinnPainter](https://github.com/QuinnPainter)
 
 ## Testing
 

src/doc/rustc/src/platform-support/armv6k-nintendo-3ds.md

@@ -13,9 +13,9 @@ from nor used with any official Nintendo SDK.
 This target is maintained by members of the [@rust3ds](https://github.com/rust3ds)
 organization:
 
-- [@Meziu](https://github.com/Meziu)
-- [@AzureMarker](https://github.com/AzureMarker)
-- [@ian-h-chamberlain](https://github.com/ian-h-chamberlain)
+[@Meziu](https://github.com/Meziu)
+[@AzureMarker](https://github.com/AzureMarker)
+[@ian-h-chamberlain](https://github.com/ian-h-chamberlain)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/armv7-rtems-eabihf.md

@@ -6,7 +6,7 @@ ARM targets for the [RTEMS realtime operating system](https://www.rtems.org)  us
 
 ## Target maintainers
 
-- [@thesummer](https://github.com/thesummer)
+[@thesummer](https://github.com/thesummer)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/armv7-sony-vita-newlibeabihf.md

@@ -9,9 +9,9 @@ from nor used with any official Sony SDK.
 
 ## Target maintainers
 
-* [@nikarh](https://github.com/nikarh)
-* [@pheki](https://github.com/pheki)
-* [@ZetaNumbers](https://github.com/ZetaNumbers)
+[@nikarh](https://github.com/nikarh)
+[@pheki](https://github.com/pheki)
+[@zetanumbers](https://github.com/zetanumbers)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabi.md

@@ -6,7 +6,7 @@ This target supports Armv7-A softfloat CPUs and uses the uclibc-ng standard libr
 
 ## Target maintainers
 
-* [@lancethepants](https://github.com/lancethepants)
+[@lancethepants](https://github.com/lancethepants)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/armv7-unknown-linux-uclibceabihf.md

@@ -4,9 +4,9 @@
 
 This tier supports the Armv7-A processor running a Linux kernel and uClibc-ng standard library.  It provides full support for rust and the rust standard library.
 
-## Designated Developers
+## Target Maintainers
 
-* [@skrap](https://github.com/skrap)
+[@skrap](https://github.com/skrap)
 
 ## Requirements
 

src/doc/rustc/src/platform-support/armv7r-none-eabi.md

@@ -16,7 +16,7 @@ See [`arm-none-eabi`](arm-none-eabi.md) for information applicable to all
 
 ## Target maintainers
 
-- [Chris Copeland](https://github.com/chrisnc), `[email protected]`
+[@chrisnc](https://github.com/chrisnc)
 
 ## Requirements