[meta-lts-mixins,kirkstone/rust] rust: Upgrade 1.90.0 -> 1.91.1

From: Tobias Burghart <tobias.burghart@rohde-schwarz.com>

https://blog.rust-lang.org/2025/11/10/Rust-1.91.1/

Test results summary:

    rust v1.91.1
    +-----------+--------+---------+
    | Machine   | Passed | Ignored |
    +-----------+--------+---------+
    | arm-32    | 29,968 |  1,510  |
    | arm-64    | 30,071 |  1,447  |
    | x86-32    | 29,985 |  1,489  |
    | x86-64    | 30,229 |  1,247  |
    | riscv-64  | 30,045 |  1,472  |
    +-----------+--------+---------+

    Test results difference (1.91.1 - 1.90):
    +-----------+--------+---------+
    | Machine   | Passed | Ignored |
    +-----------+--------+---------+
    | arm-32    |  +451  |   -19   |
    | arm-64    |  +463  |   -24   |
    | x86-32    |  +477  |   -18   |
    | x86-64    |  +326  |   -28   |
    | riscv-64  |  +461  |   -22   |
    +-----------+--------+---------+

Signed-off-by: Tobias Burghart <tobias.burghart@rohde-schwarz.com>
---
 classes/rust-target-config.bbclass            |  2 +-
 conf/layer.conf                               |  2 +-
 lib/oeqa/selftest/cases/rust_mixin.py         |  2 +-
 .../rust/{cargo_1.90.0.bb => cargo_1.91.1.bb} |  0
 ...-gcs-instead-of-gcs-target-attribute.patch | 66 ----------------
 ...teps-tool.rs-switch-off-lto-for-rust.patch | 20 ++---
 .../rust/files/rust-oe-selftest.patch         | 59 +++++---------
 ...ibstd-rs_1.90.0.bb => libstd-rs_1.91.1.bb} |  0
 ....90.0.bb => rust-cross-canadian_1.91.1.bb} |  0
 ...ust-llvm_1.90.0.bb => rust-llvm_1.91.1.bb} |  0
 recipes-devtools/rust/rust-snapshot.inc       | 78 +++++++++----------
 recipes-devtools/rust/rust-source.inc         |  3 +-
 .../rust/{rust_1.90.0.bb => rust_1.91.1.bb}   |  4 +-
 13 files changed, 74 insertions(+), 162 deletions(-)
 rename recipes-devtools/rust/{cargo_1.90.0.bb => cargo_1.91.1.bb} (100%)
 delete mode 100644 recipes-devtools/rust/files/0001-libunwind-Use-gcs-instead-of-gcs-target-attribute.patch
 rename recipes-devtools/rust/{libstd-rs_1.90.0.bb => libstd-rs_1.91.1.bb} (100%)
 rename recipes-devtools/rust/{rust-cross-canadian_1.90.0.bb => rust-cross-canadian_1.91.1.bb} (100%)
 rename recipes-devtools/rust/{rust-llvm_1.90.0.bb => rust-llvm_1.91.1.bb} (100%)
 rename recipes-devtools/rust/{rust_1.90.0.bb => rust_1.91.1.bb} (99%)

On Wed, 21 Jan 2026, tobias.burghart.oss@rohde-schwarz.com wrote:

> From: Tobias Burghart <tobias.burghart@rohde-schwarz.com>
>
> https://blog.rust-lang.org/2025/11/10/Rust-1.91.1/
>
> Test results summary:
>
>     rust v1.91.1
>     +-----------+--------+---------+
>     | Machine   | Passed | Ignored |
>     +-----------+--------+---------+
>     | arm-32    | 29,968 |  1,510  |
>     | arm-64    | 30,071 |  1,447  |
>     | x86-32    | 29,985 |  1,489  |
>     | x86-64    | 30,229 |  1,247  |
>     | riscv-64  | 30,045 |  1,472  |
>     +-----------+--------+---------+
>
>     Test results difference (1.91.1 - 1.90):
>     +-----------+--------+---------+
>     | Machine   | Passed | Ignored |
>     +-----------+--------+---------+
>     | arm-32    |  +451  |   -19   |
>     | arm-64    |  +463  |   -24   |
>     | x86-32    |  +477  |   -18   |
>     | x86-64    |  +326  |   -28   |
>     | riscv-64  |  +461  |   -22   |
>     +-----------+--------+---------+
>
> Signed-off-by: Tobias Burghart <tobias.burghart@rohde-schwarz.com>

Thanks for these, but my plan is to catch up to master (1.92.0) with my
backporting process in the next few days.  I had hoped to do it last
week, but got delayed by some meta-security updating.

Scott

> ---
>  classes/rust-target-config.bbclass            |  2 +-
>  conf/layer.conf                               |  2 +-
>  lib/oeqa/selftest/cases/rust_mixin.py         |  2 +-
>  .../rust/{cargo_1.90.0.bb => cargo_1.91.1.bb} |  0
>  ...-gcs-instead-of-gcs-target-attribute.patch | 66 ----------------
>  ...teps-tool.rs-switch-off-lto-for-rust.patch | 20 ++---
>  .../rust/files/rust-oe-selftest.patch         | 59 +++++---------
>  ...ibstd-rs_1.90.0.bb => libstd-rs_1.91.1.bb} |  0
>  ....90.0.bb => rust-cross-canadian_1.91.1.bb} |  0
>  ...ust-llvm_1.90.0.bb => rust-llvm_1.91.1.bb} |  0
>  recipes-devtools/rust/rust-snapshot.inc       | 78 +++++++++----------
>  recipes-devtools/rust/rust-source.inc         |  3 +-
>  .../rust/{rust_1.90.0.bb => rust_1.91.1.bb}   |  4 +-
>  13 files changed, 74 insertions(+), 162 deletions(-)
>  rename recipes-devtools/rust/{cargo_1.90.0.bb => cargo_1.91.1.bb} (100%)
>  delete mode 100644 recipes-devtools/rust/files/0001-libunwind-Use-gcs-instead-of-gcs-target-attribute.patch
>  rename recipes-devtools/rust/{libstd-rs_1.90.0.bb => libstd-rs_1.91.1.bb} (100%)
>  rename recipes-devtools/rust/{rust-cross-canadian_1.90.0.bb => rust-cross-canadian_1.91.1.bb} (100%)
>  rename recipes-devtools/rust/{rust-llvm_1.90.0.bb => rust-llvm_1.91.1.bb} (100%)
>  rename recipes-devtools/rust/{rust_1.90.0.bb => rust_1.91.1.bb} (99%)
>
> diff --git a/classes/rust-target-config.bbclass b/classes/rust-target-config.bbclass
> index b351638..0c6fc95 100644
> --- a/classes/rust-target-config.bbclass
> +++ b/classes/rust-target-config.bbclass
> @@ -368,7 +368,7 @@ def rust_gen_target(d, thing, wd, arch):
>      if tspec['data-layout'] is None:
>          bb.fatal("No rust target defined for %s" % arch_abi)
>      tspec['max-atomic-width'] = int(d.getVarFlag('MAX_ATOMIC_WIDTH', arch_abi))
> -    tspec['target-pointer-width'] = d.getVarFlag('TARGET_POINTER_WIDTH', arch_abi)
> +    tspec['target-pointer-width'] = int(d.getVarFlag('TARGET_POINTER_WIDTH', arch_abi))
>      tspec['target-c-int-width'] = int(d.getVarFlag('TARGET_C_INT_WIDTH', arch_abi))
>      tspec['target-endian'] = d.getVarFlag('TARGET_ENDIAN', arch_abi)
>      tspec['arch'] = arch_to_rust_target_arch(rust_arch)
> diff --git a/conf/layer.conf b/conf/layer.conf
> index 287f795..489273f 100644
> --- a/conf/layer.conf
> +++ b/conf/layer.conf
> @@ -15,7 +15,7 @@ LAYERDEPENDS_lts-rust-mixin = "core"
>
>  LICENSE_PATH += "${LAYERDIR}/files/common-licenses"
>
> -RUSTVERSION ?= "1.90.0%"
> +RUSTVERSION ?= "1.91.1%"
>
>  # This is not ideal, but it seems better to mask out the older oe-core
>  # recipes completely since they will not work with this layer on top,
> diff --git a/lib/oeqa/selftest/cases/rust_mixin.py b/lib/oeqa/selftest/cases/rust_mixin.py
> index b7213f9..f6ffcf4 100644
> --- a/lib/oeqa/selftest/cases/rust_mixin.py
> +++ b/lib/oeqa/selftest/cases/rust_mixin.py
> @@ -107,7 +107,7 @@ class RustSelfTestSystemEmulated(OESelftestTestCase, OEPTestResultTestCase):
>              # Copy remote-test-server to image through scp
>              host_sys = get_bb_var("RUST_BUILD_SYS", "rust")
>              ssh = SSHControl(ip=qemu.ip, logfile=qemu.sshlog, user="root")
> -            ssh.copy_to(builddir + "/build/" + host_sys + "/stage1-tools-bin/remote-test-server","~/")
> +            ssh.copy_to(builddir + "/build/" + host_sys + "/stage2-tools-bin/remote-test-server","~/")
>              # Execute remote-test-server on image through background ssh
>              command = '~/remote-test-server --bind 0.0.0.0:12345 -v'
>              sshrun=subprocess.Popen(("ssh", '-o',  'UserKnownHostsFile=/dev/null', '-o',  'StrictHostKeyChecking=no', '-f', "root@%s" % qemu.ip, command), shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
> diff --git a/recipes-devtools/rust/cargo_1.90.0.bb b/recipes-devtools/rust/cargo_1.91.1.bb
> similarity index 100%
> rename from recipes-devtools/rust/cargo_1.90.0.bb
> rename to recipes-devtools/rust/cargo_1.91.1.bb
> diff --git a/recipes-devtools/rust/files/0001-libunwind-Use-gcs-instead-of-gcs-target-attribute.patch b/recipes-devtools/rust/files/0001-libunwind-Use-gcs-instead-of-gcs-target-attribute.patch
> deleted file mode 100644
> index a704671..0000000
> --- a/recipes-devtools/rust/files/0001-libunwind-Use-gcs-instead-of-gcs-target-attribute.patch
> +++ /dev/null
> @@ -1,66 +0,0 @@
> -From e4f4094de8ddcbe6d5ff1cdf782d2b89e0563903 Mon Sep 17 00:00:00 2001
> -From: Khem Raj <raj.khem@gmail.com>
> -Date: Wed, 30 Apr 2025 19:51:19 -0700
> -Subject: [PATCH] libunwind: Use +gcs instead of gcs target attribute
> -
> -__attribute__((target("gcs"))) does not work with gcc
> -
> -GCC-15 has added gcs intrinsics [1] but the syntax for enabling it is
> -slightly different. This syntax works with clang too.
> -
> -With gcc15 compiler libunwind's check for this macros is succeeding and it
> -ends up enabling 'gcs' by using function attribute, this works with clang
> -but not with gcc but '+gcs' works with both
> -
> -We can see this in rust compiler bootstrap for aarch64/musl when system
> -uses gcc15, it ends up with these errors
> -
> -Building libunwind.a for aarch64-poky-linux-musl
> -cargo:warning=/mnt/b/yoe/master/sources/poky/build/tmp/work/cortexa57-poky-linux-musl/rust/1.85.1/rustc-1.85.1-src/src/llvm-project/libunwind/src/UnwindLevel1.c:191:1: error: arch extension 'gcs' should be prefixed by '+'
> -cargo:warning=  191 | unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) {
> -cargo:warning=      | ^~~~~~~~~~~~~
> -cargo:warning=/mnt/b/yoe/master/sources/poky/build/tmp/work/cortexa57-poky-linux-musl/rust/1.85.1/rustc-1.85.1-src/src/llvm-project/libunwind/src/UnwindLevel1.c:337:22: error: arch extension 'gcs' should be prefixed by '+'
> -cargo:warning=  337 |                      _Unwind_Stop_Fn stop, void *stop_parameter) {
> -cargo:warning=      |                      ^~~~~~~~~~~~~~~
> -
> -[1] https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5a6af707f0af
> -
> -Upstream-Status: Submitted [https://github.com/llvm/llvm-project/pull/138077]
> -
> -Signed-off-by: Khem Raj <raj.khem@gmail.com>
> ----
> - src/llvm-project/libunwind/src/UnwindLevel1.c | 4 ++--
> - 1 file changed, 2 insertions(+), 2 deletions(-)
> -
> ---- a/src/llvm-project/libunwind/src/UnwindLevel1.c
> -+++ b/src/llvm-project/libunwind/src/UnwindLevel1.c
> -@@ -185,7 +185,7 @@ extern int __unw_step_stage2(unw_cursor_
> -
> - #if defined(_LIBUNWIND_USE_GCS)
> - // Enable the GCS target feature to permit gcspop instructions to be used.
> --__attribute__((target("gcs")))
> -+__attribute__((target("+gcs")))
> - #endif
> - static _Unwind_Reason_Code
> - unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) {
> -@@ -329,7 +329,7 @@ unwind_phase2(unw_context_t *uc, unw_cur
> -
> - #if defined(_LIBUNWIND_USE_GCS)
> - // Enable the GCS target feature to permit gcspop instructions to be used.
> --__attribute__((target("gcs")))
> -+__attribute__((target("+gcs")))
> - #endif
> - static _Unwind_Reason_Code
> - unwind_phase2_forced(unw_context_t *uc, unw_cursor_t *cursor,
> ---- a/src/llvm-project/libunwind/src/cet_unwind.h
> -+++ b/src/llvm-project/libunwind/src/cet_unwind.h
> -@@ -42,7 +42,8 @@
> - #include <arm_acle.h>
> -
> - // We can only use GCS if arm_acle.h defines the GCS intrinsics.
> --#ifdef _CHKFEAT_GCS
> -+// Enable gcs with clang for now, gcc does not build unwindlevel1.c correctly
> -+#if defined(_CHKFEAT_GCS) && defined(__clang__)
> - #define _LIBUNWIND_USE_GCS 1
> - #endif
> -
> diff --git a/recipes-devtools/rust/files/0001-src-core-build_steps-tool.rs-switch-off-lto-for-rust.patch b/recipes-devtools/rust/files/0001-src-core-build_steps-tool.rs-switch-off-lto-for-rust.patch
> index 7f25ba9..a8232b9 100644
> --- a/recipes-devtools/rust/files/0001-src-core-build_steps-tool.rs-switch-off-lto-for-rust.patch
> +++ b/recipes-devtools/rust/files/0001-src-core-build_steps-tool.rs-switch-off-lto-for-rust.patch
> @@ -24,9 +24,9 @@ diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core
>  index 087df2f8a..00790affb 100644
>  --- a/src/bootstrap/src/core/build_steps/tool.rs
>  +++ b/src/bootstrap/src/core/build_steps/tool.rs
> -@@ -16,14 +16,12 @@ use std::{env, fs};
> - #[cfg(feature = "tracing")]
> - use tracing::instrument;
> +@@ -13,14 +13,12 @@ use std::ffi::OsStr;
> + use std::path::PathBuf;
> + use std::{env, fs};
>
>  -use crate::core::build_steps::compile::is_lto_stage;
>   use crate::core::build_steps::toolstate::ToolState;
> @@ -41,14 +41,16 @@ index 087df2f8a..00790affb 100644
>  +use crate::core::config::{DebuginfoLevel, TargetSelection};
>   use crate::utils::exec::{BootstrapCommand, command};
>   use crate::utils::helpers::{add_dylib_path, exe, t};
> - use crate::{Compiler, FileType, Kind, Mode, gha};
> -@@ -160,20 +158,7 @@ impl Step for ToolBuild {
> + use crate::{Compiler, FileType, Kind, Mode};
> +@@ -121,22 +119,7 @@ impl Step for ToolBuild {
>               cargo.env("RUSTC_WRAPPER", ccache);
>           }
>
> --        // Rustc tools (miri, clippy, cargo, rustfmt, rust-analyzer)
> +-        // RustcPrivate tools (miri, clippy, rustfmt, rust-analyzer) and cargo
>  -        // could use the additional optimizations.
> --        if self.mode == Mode::ToolRustc && is_lto_stage(&self.build_compiler) {
> +-        if is_lto_stage(&self.build_compiler)
> +-            && (self.mode == Mode::ToolRustcPrivate || self.path == "src/tools/cargo")
> +-        {
>  -            let lto = match builder.config.rust_lto {
>  -                RustcLto::Off => Some("off"),
>  -                RustcLto::Thin => Some("thin"),
> @@ -67,7 +69,7 @@ index 087df2f8a..00790affb 100644
>  diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs
>  --- a/src/bootstrap/src/core/builder/mod.rs
>  +++ b/src/bootstrap/src/core/builder/mod.rs
> -@@ -13,7 +13,7 @@
> +@@ -13,7 +13,7 @@ use clap::ValueEnum;
>   #[cfg(feature = "tracing")]
>   use tracing::instrument;
>
> @@ -75,4 +77,4 @@ diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/buil
>  +pub use self::cargo::Cargo;
>   pub use crate::Compiler;
>   use crate::core::build_steps::compile::{Std, StdLink};
> - use crate::core::build_steps::{
> + use crate::core::build_steps::tool::RustcPrivateCompilers;
> diff --git a/recipes-devtools/rust/files/rust-oe-selftest.patch b/recipes-devtools/rust/files/rust-oe-selftest.patch
> index fe683e9..7d26d75 100644
> --- a/recipes-devtools/rust/files/rust-oe-selftest.patch
> +++ b/recipes-devtools/rust/files/rust-oe-selftest.patch
> @@ -10,7 +10,7 @@ Signed-off-by: Peter Tatrai <Peter.Tatrai@siemens.com>
>  diff --git a/compiler/rustc_errors/src/markdown/tests/term.rs b/compiler/rustc_errors/src/markdown/tests/term.rs
>  --- a/compiler/rustc_errors/src/markdown/tests/term.rs
>  +++ b/compiler/rustc_errors/src/markdown/tests/term.rs
> -@@ -61,6 +61,7 @@ fn test_wrapping_write() {
> +@@ -62,6 +62,7 @@ fn test_wrapping_write() {
>   }
>
>   #[test]
> @@ -21,7 +21,7 @@ diff --git a/compiler/rustc_errors/src/markdown/tests/term.rs b/compiler/rustc_e
>  diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs
>  --- a/compiler/rustc_interface/src/tests.rs
>  +++ b/compiler/rustc_interface/src/tests.rs
> -@@ -137,6 +137,7 @@ fn assert_non_crate_hash_different(x: &Options, y: &Options) {
> +@@ -147,6 +147,7 @@ fn assert_non_crate_hash_different(x: &Options, y: &Options) {
>
>   // When the user supplies --test we should implicitly supply --cfg test
>   #[test]
> @@ -29,7 +29,7 @@ diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/sr
>   fn test_switch_implies_cfg_test() {
>       sess_and_cfg(&["--test"], |_sess, cfg| {
>           assert!(cfg.contains(&(sym::test, None)));
> -@@ -145,6 +146,7 @@ fn test_switch_implies_cfg_test() {
> +@@ -155,6 +156,7 @@ fn test_switch_implies_cfg_test() {
>
>   // When the user supplies --test and --cfg test, don't implicitly add another --cfg test
>   #[test]
> @@ -37,7 +37,7 @@ diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/sr
>   fn test_switch_implies_cfg_test_unless_cfg_test() {
>       sess_and_cfg(&["--test", "--cfg=test"], |_sess, cfg| {
>           let mut test_items = cfg.iter().filter(|&&(name, _)| name == sym::test);
> -@@ -154,6 +156,7 @@ fn test_switch_implies_cfg_test_unless_cfg_test() {
> +@@ -164,6 +166,7 @@ fn test_switch_implies_cfg_test_unless_cfg_test() {
>   }
>
>   #[test]
> @@ -49,7 +49,7 @@ diff --git a/library/std/tests/sync/rwlock.rs b/library/std/tests/sync/rwlock.rs
>  index 1a9d3d3f12f..0a9cfc48806 100644
>  --- a/library/std/tests/sync/rwlock.rs
>  +++ b/library/std/tests/sync/rwlock.rs
> -@@ -74,6 +74,7 @@
> +@@ -605,6 +605,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -57,7 +57,7 @@ index 1a9d3d3f12f..0a9cfc48806 100644
>   fn test_rw_arc_poison_wr() {
>       let arc = Arc::new(RwLock::new(1));
>       let arc2 = arc.clone();
> -@@ -87,6 +88,7 @@
> +@@ -618,6 +619,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -65,7 +65,7 @@ index 1a9d3d3f12f..0a9cfc48806 100644
>   fn test_rw_arc_poison_mapped_w_r() {
>       let arc = Arc::new(RwLock::new(1));
>       let arc2 = arc.clone();
> -@@ -101,6 +103,7 @@
> +@@ -632,6 +634,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -73,7 +73,7 @@ index 1a9d3d3f12f..0a9cfc48806 100644
>   fn test_rw_arc_poison_ww() {
>       let arc = Arc::new(RwLock::new(1));
>       assert!(!arc.is_poisoned());
> -@@ -115,6 +118,7 @@
> +@@ -646,6 +649,7 @@
>   }
>
>   #[test]
> @@ -81,7 +81,7 @@ index 1a9d3d3f12f..0a9cfc48806 100644
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
>   fn test_rw_arc_poison_mapped_w_w() {
>       let arc = Arc::new(RwLock::new(1));
> -@@ -131,6 +135,7 @@
> +@@ -662,6 +666,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -89,7 +89,7 @@ index 1a9d3d3f12f..0a9cfc48806 100644
>   fn test_rw_arc_no_poison_rr() {
>       let arc = Arc::new(RwLock::new(1));
>       let arc2 = arc.clone();
> -@@ -160,6 +165,7 @@
> +@@ -691,6 +696,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -97,38 +97,14 @@ index 1a9d3d3f12f..0a9cfc48806 100644
>   fn test_rw_arc_no_poison_rw() {
>       let arc = Arc::new(RwLock::new(1));
>       let arc2 = arc.clone();
> -@@ -227,6 +233,7 @@
> -
> - #[test]
> - #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> -+#[ignore]
> - fn test_rw_arc_access_in_unwind() {
> -     let arc = Arc::new(RwLock::new(1));
> -     let arc2 = arc.clone();
> -@@ -326,6 +333,7 @@
> -
> - #[test]
> - #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> -+#[ignore]
> - fn test_into_inner_poison() {
> -     let m = new_poisoned_rwlock(NonCopy(10));
> -
> -@@ -362,6 +370,7 @@
> -
> - #[test]
> - #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> -+#[ignore]
> - fn test_get_mut_poison() {
> -     let mut m = new_poisoned_rwlock(NonCopy(10));
> -
> -@@ -571,6 +571,7 @@
> +@@ -794,6 +800,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
>  +#[ignore]
>   fn panic_while_mapping_write_unlocked_poison() {
>       let lock = RwLock::new(());
> -
> +
>  diff --git a/library/test/src/tests.rs b/library/test/src/tests.rs
>  --- a/library/test/src/tests.rs
>  +++ b/library/test/src/tests.rs
> @@ -143,7 +119,7 @@ diff --git a/library/test/src/tests.rs b/library/test/src/tests.rs
>  diff --git a/library/std/tests/sync/mutex.rs b/library/std/tests/sync/mutex.rs
>  --- a/library/std/tests/sync/mutex.rs
>  +++ b/library/std/tests/sync/mutex.rs
> -@@ -312,6 +312,7 @@
> +@@ -472,6 +472,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -151,7 +127,7 @@ diff --git a/library/std/tests/sync/mutex.rs b/library/std/tests/sync/mutex.rs
>   fn test_mutex_arc_poison_mapped() {
>       let arc = Arc::new(Mutex::new(1));
>       assert!(!arc.is_poisoned());
> -@@ -391,6 +392,7 @@
> +@@ -388,6 +389,7 @@
>
>   #[test]
>   #[cfg_attr(not(panic = "unwind"), ignore = "test requires unwinding support")]
> @@ -308,13 +284,14 @@ diff --git a/tests/codegen-llvm/transmute-scalar.rs b/tests/codegen-llvm/transmu
>  index ce1b0558b2e..e8fda2cd566 100644
>  --- a/tests/codegen-llvm/transmute-scalar.rs
>  +++ b/tests/codegen-llvm/transmute-scalar.rs
> -@@ -1,5 +1,6 @@
> +@@ -1,6 +1,7 @@
>   //@ add-core-stubs
> - //@ compile-flags: -C opt-level=0 -C no-prepopulate-passes
> + //@ compile-flags: -C opt-level=0 -C no-prepopulate-passes --target=x86_64-unknown-linux-gnu
> + //@ needs-llvm-components: x86
>  +//@ ignore-riscv64
>
>   #![crate_type = "lib"]
> - #![feature(no_core, repr_simd, arm_target_feature, mips_target_feature, s390x_target_feature)]
> + #![feature(no_core, repr_simd)]
>  diff --git a/tests/codegen-llvm/uninhabited-transparent-return-abi.rs b/tests/codegen-llvm/uninhabited-transparent-return-abi.rs
>  index face1577c3f..09e0846bad0 100644
>  --- a/tests/codegen-llvm/uninhabited-transparent-return-abi.rs
> diff --git a/recipes-devtools/rust/libstd-rs_1.90.0.bb b/recipes-devtools/rust/libstd-rs_1.91.1.bb
> similarity index 100%
> rename from recipes-devtools/rust/libstd-rs_1.90.0.bb
> rename to recipes-devtools/rust/libstd-rs_1.91.1.bb
> diff --git a/recipes-devtools/rust/rust-cross-canadian_1.90.0.bb b/recipes-devtools/rust/rust-cross-canadian_1.91.1.bb
> similarity index 100%
> rename from recipes-devtools/rust/rust-cross-canadian_1.90.0.bb
> rename to recipes-devtools/rust/rust-cross-canadian_1.91.1.bb
> diff --git a/recipes-devtools/rust/rust-llvm_1.90.0.bb b/recipes-devtools/rust/rust-llvm_1.91.1.bb
> similarity index 100%
> rename from recipes-devtools/rust/rust-llvm_1.90.0.bb
> rename to recipes-devtools/rust/rust-llvm_1.91.1.bb
> diff --git a/recipes-devtools/rust/rust-snapshot.inc b/recipes-devtools/rust/rust-snapshot.inc
> index 6a8802c..c6f9031 100644
> --- a/recipes-devtools/rust/rust-snapshot.inc
> +++ b/recipes-devtools/rust/rust-snapshot.inc
> @@ -4,56 +4,56 @@
>  ## The exact (previous) version that has been used is specified in the source tarball.
>  ## The version is replicated here.
>
> -SNAPSHOT_VERSION = "1.89.0"
> +SNAPSHOT_VERSION = "1.90.0"
>
> -SRC_URI[rustc-snapshot-aarch64.sha256sum] = "16ed8d8c7628a481c8501e7cd1022a123269b297bdedbb7f211f37a15e937e0e"
> -SRC_URI[rust-std-snapshot-aarch64.sha256sum] = "abea0955dded88c68d731524ab9d29b162fae23bf5805b9f1dec063cba37c2aa"
> -SRC_URI[cargo-snapshot-aarch64.sha256sum] = "f9df3ee6d55a2387459b843477743fa386c3c0f126bd0be01691ee49309681b8"
> -SRC_URI[clippy-snapshot-aarch64.sha256sum] = "46512c61e217e613dc4d329fda8c6dde0d0ea94c4ae59c1ca2af9cf480458ff0"
> +SRC_URI[rustc-snapshot-aarch64.sha256sum] = "4e1a9987a11d7d91f0d5afbf5333feb62f44172e4a31f33ce7246549003217f2"
> +SRC_URI[rust-std-snapshot-aarch64.sha256sum] = "4952abb7d9d3ed7cea4f7ea44dcb23dc67631fae4ac44a5f059b90a4b5e9223f"
> +SRC_URI[cargo-snapshot-aarch64.sha256sum] = "bd8d1da6fe88ea7e29338f24277c22156267447adbfc47d690467ad32d02c2a7"
> +SRC_URI[clippy-snapshot-aarch64.sha256sum] = "1a7f969c5712c17d960d6fba8235b33f264a9484b369dc388766a540f1ba464f"
>
> -SRC_URI[rustc-snapshot-i686.sha256sum] = "a5ca58ab1b419ddbf5e4ea9b206a3d1feb0cfc4e0879a96c2c2f809ee9ca00b0"
> -SRC_URI[rust-std-snapshot-i686.sha256sum] = "853605815e8267baf8fdc6e4594514d2e0afb46fb29f478ebec871a3424430f3"
> -SRC_URI[cargo-snapshot-i686.sha256sum] = "1b3edcf590af9b9abdfa95f34b90a4258560627464a2a25d4e4503bb5834e291"
> -SRC_URI[clippy-snapshot-i686.sha256sum] = "2c47960ee78d804ce679b06c9c759e777ac7f39cae48bd8ffaf7ff706f951520"
> +SRC_URI[rustc-snapshot-i686.sha256sum] = "3b33cef77f9a57d592beb5117d933134bc76258006e6d4f9aed2969d20c75742"
> +SRC_URI[rust-std-snapshot-i686.sha256sum] = "dc4bffa768326e0cc47d6b129bcb891af6e7b7bf09ec92bca45e49420b9837bd"
> +SRC_URI[cargo-snapshot-i686.sha256sum] = "c1e9b24bbfa95550b5dba9de2045a4c906bea108625781758692b2a407428391"
> +SRC_URI[clippy-snapshot-i686.sha256sum] = "3e902971ef6b44ccb804af73aba5dc8c6199ed09a76f178b0eed6f53f7f56eab"
>
> -SRC_URI[rustc-snapshot-loongarch64.sha256sum] = "c090c2ab6b54a8d84129de4ef53bd4df35358191092d3217bf6fa99c20c860c6"
> -SRC_URI[rust-std-snapshot-loongarch64.sha256sum] = "2c5aa2cad944499c5b64947dcfeb12f3d5c91ced330a0982e000f22ec3dea27f"
> -SRC_URI[cargo-snapshot-loongarch64.sha256sum] = "d22678ae984535464cd9aff3515e9ec5145ecb8db489ef4cce5c697e0538b500"
> -SRC_URI[clippy-snapshot-loongarch64.sha256sum] = "0392c4fc97dc72b0d7d518129428c928b887e63b47f3d931fab7e54e2332ca9c"
> +SRC_URI[rustc-snapshot-loongarch64.sha256sum] = "aca7ee7f0d98e34dafa367cef9c35626d37cf8334f356498aa2bda2fc02206b3"
> +SRC_URI[rust-std-snapshot-loongarch64.sha256sum] = "cb779575cec151223c3c144bc9ca957530fa510e36b32bc9f35bbb1b7dde9e2f"
> +SRC_URI[cargo-snapshot-loongarch64.sha256sum] = "6ae37dc8eb3ff4655053a39d5f973613a82a8a8e2fff42c423ca33d8cf19e6c1"
> +SRC_URI[clippy-snapshot-loongarch64.sha256sum] = "847b3d4bd3d2be23bafbb90cd2ed5e1bf1aacb2e7152e7d2f99bee1078aa0eaa"
>
> -SRC_URI[rustc-snapshot-powerpc.sha256sum] = "08de18310e7750796261b45d5faccc31ff94ff64148bb5d9fa65e9727a432010"
> -SRC_URI[rust-std-snapshot-powerpc.sha256sum] = "a03b3c3facf4701b6c7e8f379f2aac445a582227b881e3268dee3752a84a89eb"
> -SRC_URI[cargo-snapshot-powerpc.sha256sum] = "ebdb0c8c9fad2d07dc702c9bfaee5dd140f6b0f9493bdd0c0d33f1449b7d97c2"
> -SRC_URI[clippy-snapshot-powerpc.sha256sum] = "f93cb4327943f30b3da8e671eab6a78cdc3110c6612ad2a5eeaa9d8597fbd452"
> +SRC_URI[rustc-snapshot-powerpc.sha256sum] = "c5d898ca92063d634011525557f2acabc65d4ea268022e7005f99b6ba917357b"
> +SRC_URI[rust-std-snapshot-powerpc.sha256sum] = "756d1bbd66ebb0d4d575b650a8a94d52546f6892bd2f864410411f6027ed879f"
> +SRC_URI[cargo-snapshot-powerpc.sha256sum] = "5b160a2bf0e6f470b83c5988db5b6f02b6d65d3d97a9b965acbfe940b4143b34"
> +SRC_URI[clippy-snapshot-powerpc.sha256sum] = "42ac7480dcac12a843803f5ee398d2a42389359178774cab20c66eda4f6927a5"
>
> -SRC_URI[rustc-snapshot-powerpc64.sha256sum] = "6c66c8a3d698bb338d20453c88d768e87a5af8970af4f4082d18dec26c10da2c"
> -SRC_URI[rust-std-snapshot-powerpc64.sha256sum] = "29338a9b067fe1adfd4d5ad681577c2333b3ca266a631822f23fad0984dcca39"
> -SRC_URI[cargo-snapshot-powerpc64.sha256sum] = "f23184532c1e2eef6df49358fdfb867e99e84db7c814ce667744a36bc2fd8d37"
> -SRC_URI[clippy-snapshot-powerpc64.sha256sum] = "695228193ff41ac32ec562140294d87b1988311dfe685acc72b725429e2651d9"
> +SRC_URI[rustc-snapshot-powerpc64.sha256sum] = "7adbc3c317a73b7d504e171d65a2b0e93953e3e572dab99acabe91140101f81d"
> +SRC_URI[rust-std-snapshot-powerpc64.sha256sum] = "16daac5dc6994c03ab3b8c4e6e5e52c41f5fc5846acea08f4fdf0759cc273aa2"
> +SRC_URI[cargo-snapshot-powerpc64.sha256sum] = "fdf90d22476c88d5b9cf8a3ac0937d0b9c6b7dafbf6b3afde369c2f5b8faec88"
> +SRC_URI[clippy-snapshot-powerpc64.sha256sum] = "071e06a50d5b2975905bb2d6211f2d2372ab0dbd50b7b0097168cb64e77a4bb0"
>
> -SRC_URI[rustc-snapshot-powerpc64le.sha256sum] = "14b7a8b7b3951a59a765804e1dd2ad454d3412000e7166ad8f2f621e29a88941"
> -SRC_URI[rust-std-snapshot-powerpc64le.sha256sum] = "40123b87f0b909376d7f0bd291553b7e10aa637dd710f4bc698bcdcd0b08d21b"
> -SRC_URI[cargo-snapshot-powerpc64le.sha256sum] = "764eb5f54c2b0779f9e84c6fb0763e45316d5a51fbd187b56f9f6d7a646272d4"
> -SRC_URI[clippy-snapshot-powerpc64le.sha256sum] = "682d112649355a637a871347d41317e361eb555bbfd4a4e48b26b0978449184b"
> +SRC_URI[rustc-snapshot-powerpc64le.sha256sum] = "e87b8eb926a65211a99f6712ff376c5950b4b11c67ed7f92019da27a34ae7085"
> +SRC_URI[rust-std-snapshot-powerpc64le.sha256sum] = "eac29f92ccd335c51553c362c7a6d3de2eb7071b5ae3839470e351a6a3ebdb77"
> +SRC_URI[cargo-snapshot-powerpc64le.sha256sum] = "f029151dfeed6570b8b347e04a5bb7dcb9c59d8e5454c535c05bb5069c216354"
> +SRC_URI[clippy-snapshot-powerpc64le.sha256sum] = "12d19dbec34c5a35cd285fe74dcd0226563c0b25be5d041479744060e9374c98"
>
> -SRC_URI[rustc-snapshot-riscv64gc.sha256sum] = "2a2a00288faa8a55b16a3135c979bbd9c823f1e9ff376ea452ef0700ccc20d48"
> -SRC_URI[rust-std-snapshot-riscv64gc.sha256sum] = "ee83276bb2d456116517638b8ff379c24ceffe1c0e381103739cb1db8e4c20da"
> -SRC_URI[cargo-snapshot-riscv64gc.sha256sum] = "ec9a8f609f23b196d09e6537dbaec7c6fd947e3b8266406c6654b2c112530de2"
> -SRC_URI[clippy-snapshot-riscv64gc.sha256sum] = "6bba0817c70b4dfae08238beb38003c623404d26b9ec00a297d08c9bf81c6d76"
> +SRC_URI[rustc-snapshot-riscv64gc.sha256sum] = "11ae522969c6b18ad4b5a1ae229473de59406af7ab2e831acb43ee247a16b58d"
> +SRC_URI[rust-std-snapshot-riscv64gc.sha256sum] = "675dc5556d9d879101d2401b693fcf79edac8f00a49249e2e0f19cecd172ce51"
> +SRC_URI[cargo-snapshot-riscv64gc.sha256sum] = "8a09de014f7cec749b338c6636d190a1b73fd377bab6a223eb715d3c76c49e79"
> +SRC_URI[clippy-snapshot-riscv64gc.sha256sum] = "02338e25b3d2b61d9dbee7bee4c9ed148f18e2d010c6297ffd36df98042f41a2"
>
> -SRC_URI[rustc-snapshot-s390x.sha256sum] = "b2b811644d26d10195be0272b81bd28ed55aa998300c52b0d3b74bb40c162c42"
> -SRC_URI[rust-std-snapshot-s390x.sha256sum] = "2a7ed11535aac5b298a21799292ad8393b14a16acbac6358416406a0d2639746"
> -SRC_URI[cargo-snapshot-s390x.sha256sum] = "92534c38ffe3a6b17964f37ca812c5d00f079011acb060ec036945d2f568a772"
> -SRC_URI[clippy-snapshot-s390x.sha256sum] = "a4a050854353325c1710440a5f727e4280f1758fad5c0da6ba336ed57156fb48"
> +SRC_URI[rustc-snapshot-s390x.sha256sum] = "274daef5a69c8812411248a4afea4f58a096c978dffba6b1198da8e3b5a02de7"
> +SRC_URI[rust-std-snapshot-s390x.sha256sum] = "e3e7e3dbc65616eebc69e642d9042363ec38d7f50393ef816cc5238ec475f3f5"
> +SRC_URI[cargo-snapshot-s390x.sha256sum] = "468ace270ee4edac0a10185ea876ea555e41bacc0137ff08985d2155fe8cc777"
> +SRC_URI[clippy-snapshot-s390x.sha256sum] = "bb0a9483a36fdbdab08b433613b374c036779d247a8d508e31265193c3759a8d"
>
> -SRC_URI[rustc-snapshot-x86_64.sha256sum] = "b42c254e1349df86bd40bc28fdf386172a1a46f2eeabe3c7a08a75cf1fb60e27"
> -SRC_URI[rust-std-snapshot-x86_64.sha256sum] = "2719470dcd78b3f97d78b978c8f85a1a58d84ff11b62558294621c01bca34d49"
> -SRC_URI[cargo-snapshot-x86_64.sha256sum] = "99fc10be2aeedf2c23a484f217bfa76458494495a0eee33e280d3616bb08282d"
> -SRC_URI[clippy-snapshot-x86_64.sha256sum] = "c6c362c6cd74567022e9ba0c16f6676f8c2b73d955adcf1f6f4c51cf15e57ce8"
> +SRC_URI[rustc-snapshot-x86_64.sha256sum] = "48c2a42de9e92fcae8c24568f5fe40d5734696a6f80e83cc6d46eef1a78f13c9"
> +SRC_URI[rust-std-snapshot-x86_64.sha256sum] = "663f4ab7945b392d5e5294dec1b050a66820a20e86f084ec37eeb0f2f7ff5569"
> +SRC_URI[cargo-snapshot-x86_64.sha256sum] = "9853db03d68578a30972e2755c89c66aec035fec641cf8f3a7117c81eec2578d"
> +SRC_URI[clippy-snapshot-x86_64.sha256sum] = "5b6466419693a05365827378145014a37ae74fb2948fab390d5210a524792ed8"
>
> -SRC_URI[rust-std-snapshot-i586.sha256sum] = "7909e4bff0a971286958f2a88c3bbf231d6ba4ac1add0b2aa3669adb9f869836"
> +SRC_URI[rust-std-snapshot-i586.sha256sum] = "46eab5c41bf9160a31a53560ff5fc43308c0998cde952533e76fadef66799553"
>
> -SRC_URI[rust-std-snapshot-sparc64.sha256sum] = "a23126912b494dc2fcad495f78f920e43c2b1f06159e45477664aa37c03d80fa"
> +SRC_URI[rust-std-snapshot-sparc64.sha256sum] = "c204ecb424090cc6c0100cef3013f8636d29f288db99c037578aee7d2672a711"
>
>  SRC_URI += " \
>      ${RUST_DIST_SERVER}/dist/${RUST_STD_SNAPSHOT}.tar.xz;name=rust-std-snapshot-${RUST_BUILD_ARCH};subdir=rust-snapshot-components \
> diff --git a/recipes-devtools/rust/rust-source.inc b/recipes-devtools/rust/rust-source.inc
> index 895e9a8..14f74a9 100644
> --- a/recipes-devtools/rust/rust-source.inc
> +++ b/recipes-devtools/rust/rust-source.inc
> @@ -7,10 +7,9 @@ SRC_URI += "https://static.rust-lang.org/dist/rustc-${RUST_VERSION}-src.tar.xz;n
>              file://oeqa-selftest-Increase-timeout-in-process-sigpipe-ru.patch;patchdir=${RUSTSRC} \
>              file://0001-src-core-build_steps-tool.rs-switch-off-lto-for-rust.patch;patchdir=${RUSTSRC} \
>              file://revert-link-std-statically-in-rustc_driver-feature.patch;patchdir=${RUSTSRC} \
> -            file://0001-libunwind-Use-gcs-instead-of-gcs-target-attribute.patch;patchdir=${RUSTSRC} \
>              file://0001-riscv32-Define-plain-syscalls-as-their-time64-varian.patch;patchdir=${RUSTSRC} \
>  "
> -SRC_URI[rust.sha256sum] = "6bfeaddd90ffda2f063492b092bfed925c4b8c701579baf4b1316e021470daac"
> +SRC_URI[rust.sha256sum] = "66401bb815e236cc6b2aacbbe23b61b286c1fe27a67902e7c0222cfe77b3dbab"
>
>  RUSTSRC = "${WORKDIR}/rustc-${RUST_VERSION}-src"
>
> diff --git a/recipes-devtools/rust/rust_1.90.0.bb b/recipes-devtools/rust/rust_1.91.1.bb
> similarity index 99%
> rename from recipes-devtools/rust/rust_1.90.0.bb
> rename to recipes-devtools/rust/rust_1.91.1.bb
> index c6ddaed..8cfc2bd 100644
> --- a/recipes-devtools/rust/rust_1.90.0.bb
> +++ b/recipes-devtools/rust/rust_1.91.1.bb
> @@ -266,7 +266,7 @@ rust_do_install:class-nativesdk() {
>
>      install -d ${D}${bindir}
>      for i in cargo-clippy clippy-driver rustfmt; do
> -        cp build/${RUST_BUILD_SYS}/stage1-tools/${RUST_HOST_SYS}/release/$i ${D}${bindir}
> +        cp build/${RUST_BUILD_SYS}/stage2-tools/${RUST_HOST_SYS}/release/$i ${D}${bindir}
>          patchelf --set-rpath "\$ORIGIN/../lib" ${D}${bindir}/$i
>      done
>
> @@ -301,7 +301,7 @@ rust_do_install:class-target() {
>
>      install -d ${D}${bindir}
>      for i in ${EXTRA_TOOLS}; do
> -        cp build/${RUST_BUILD_SYS}/stage1-tools/${RUST_HOST_SYS}/release/$i ${D}${bindir}
> +        cp build/${RUST_BUILD_SYS}/stage2-tools/${RUST_HOST_SYS}/release/$i ${D}${bindir}
>          patchelf --set-rpath "\$ORIGIN/../lib" ${D}${bindir}/$i
>      done
>
>