Recommended update for rust, rust1.86

Announcement ID:	SUSE-RU-2025:1350-1
Release Date:	2025-04-20T17:59:05Z
Rating:	moderate
References:	jsc#PED-11411 jsc#SLE-18626
Affected Products:	Development Tools Module 15-SP6 openSUSE Leap 15.3 openSUSE Leap 15.4 openSUSE Leap 15.5 openSUSE Leap 15.6 SUSE Enterprise Storage 7.1 SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 SUSE Linux Enterprise Real Time 15 SP6 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 LTSS SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server 15 SP4 LTSS SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server 15 SP5 LTSS SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that contains two features can now be installed.

Description:

This update for rust, rust1.86 fixes the following issues:

Changes in rust1.86:

Version 1.86.0 (2025-04-03)

Language

• Stabilize upcasting trait objects to supertraits.
• Allow safe functions to be marked with the #[target_feature] attribute.
• The missing_abi lint now warns-by-default.
• Rust now lints about double negations, to catch cases that might have intended to be a prefix decrement operator (--x) as written in other languages. This was previously a clippy lint, clippy::double_neg, and is [now available directly in Rust as double_negations.
• More pointers are now detected as definitely not-null based on their alignment in const eval.
• Empty repr() attribute applied to invalid items are now correctly rejected.
• Inner attributes #![test] and #![rustfmt::skip] are no longer accepted in more places than intended.

Compiler

• Debug-assert that raw pointers are non-null on access.
• Change -O to mean -C opt-level=3 instead of -C opt-level=2 to match Cargo's defaults.
• Fix emission of overflowing_literals under certain macro environments.

Platform Support

• Replace i686-unknown-redox target with i586-unknown-redox.
• Increase baseline CPU of i686-unknown-hurd-gnu to Pentium 4.

• New tier 3 targets:

• {aarch64-unknown,x86_64-pc}-nto-qnx710_iosock For supporting Neutrino QNX 7.1 with io-socket network stack.

• {aarch64-unknown,x86_64-pc}-nto-qnx800 For supporting Neutrino QNX 8.0 (no_std-only).
• {x86_64,i686}-win7-windows-gnu Intended for backwards compatibility with Windows 7. {x86_64,i686}-win7-windows-msvc are the Windows MSVC counterparts that already exist as Tier 3 targets.
• amdgcn-amd-amdhsa
• x86_64-pc-cygwin
• {mips,mipsel}-mti-none-elf Initial bare-metal support.
• m68k-unknown-none-elf
• armv7a-nuttx-{eabi,eabihf}, aarch64-unknown-nuttx, and thumbv7a-nuttx-{eabi,eabihf}

Refer to Rust's platform support page for more information on Rust's tiered platform support.

Libraries

• The type of FromBytesWithNulError in CStr::from_bytes_with_nul(bytes: &[u8]) -> Result<&Self, FromBytesWithNulError> was changed from an opaque struct to an enum, allowing users to examine why the conversion failed.
• Remove RustcDecodable and RustcEncodable.
• Deprecate libtest's --logfile option.
• On recent versions of Windows, std::fs::remove_file will now remove read-only files.

Stabilized APIs

• {float}::next_down https://doc.rust-lang.org/stable/std/primitive.f64.html#method.next_down
• {float}::next_up https://doc.rust-lang.org/stable/std/primitive.f64.html#method.next_up
• <[_]>::get_disjoint_mut https://doc.rust-lang.org/stable/std/primitive.slice.html#method.get_disjoint_mut
• <[_]>::get_disjoint_unchecked_mut https://doc.rust-lang.org/stable/std/primitive.slice.html#method.get_disjoint_unchecked_mut
• slice::GetDisjointMutError https://doc.rust-lang.org/stable/std/slice/enum.GetDisjointMutError.html
• HashMap::get_disjoint_mut https://doc.rust-lang.org/std/collections/hash_map/struct.HashMap.html#method.get_disjoint_mut
• HashMap::get_disjoint_unchecked_mut https://doc.rust-lang.org/std/collections/hash_map/struct.HashMap.html#method.get_disjoint_unchecked_mut
• NonZero::count_ones https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.count_ones
• Vec::pop_if https://doc.rust-lang.org/std/vec/struct.Vec.html#method.pop_if
• sync::Once::wait https://doc.rust-lang.org/stable/std/sync/struct.Once.html#method.wait
• sync::Once::wait_force https://doc.rust-lang.org/stable/std/sync/struct.Once.html#method.wait_force
• sync::OnceLock::wait https://doc.rust-lang.org/stable/std/sync/struct.OnceLock.html#method.wait

These APIs are now stable in const contexts:

• hint::black_box https://doc.rust-lang.org/stable/std/hint/fn.black_box.html
• io::Cursor::get_mut https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.get_mut
• io::Cursor::set_position https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.set_position
• str::is_char_boundary https://doc.rust-lang.org/stable/std/primitive.str.html#method.is_char_boundary
• str::split_at https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at
• str::split_at_checked https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at_checked
• str::split_at_mut https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at_mut
• str::split_at_mut_checked https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at_mut_checked

Cargo

• When merging, replace rather than combine configuration keys that refer to a program path and its arguments.
• Error if both --package and --workspace are passed but the requested package is missing. This was previously silently ignored, which was considered a bug since missing packages should be reported.
• Deprecate the token argument in cargo login to avoid shell history leaks.
• Simplify the implementation of SourceID comparisons. This may potentially change behavior if the canonicalized URL compares differently in alternative registries.

Rustdoc

• Add a sans-serif font setting.

Compatibility Notes

• The wasm_c_abi future compatibility warning is now a hard error. Users of wasm-bindgen should upgrade to at least version 0.2.89, otherwise compilation will fail.
• Remove long-deprecated no-op attributes #![no_start] and #![crate_id].
• The future incompatibility lint cenum_impl_drop_cast has been made into a hard error. This means it is now an error to cast a field-less enum to an integer if the enum implements Drop.
• SSE2 is now required for "i686" 32-bit x86 hard-float targets; disabling it causes a warning that will become a hard error eventually. To compile for pre-SSE2 32-bit x86, use a "i586" target instead.

Internal Changes

These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools.

• Build the rustc on AArch64 Linux with ThinLTO + PGO. The ARM 64-bit compiler (AArch64) on Linux is now optimized with ThinLTO and PGO, similar to the optimizations we have already performed for the x86-64 compiler on Linux. This should make it up to 30% faster.

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• openSUSE Leap 15.6
  zypper in -t patch openSUSE-SLE-15.6-2025-1350=1
• Development Tools Module 15-SP6
  zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP6-2025-1350=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-1350=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1350=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1350=1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1350=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1350=1
• SUSE Linux Enterprise Server 15 SP3 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-1350=1
• SUSE Linux Enterprise Server 15 SP4 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1350=1
• SUSE Linux Enterprise Server 15 SP5 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1350=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP3-2025-1350=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1350=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1350=1
• SUSE Enterprise Storage 7.1
  zypper in -t patch SUSE-Storage-7.1-2025-1350=1
• openSUSE Leap 15.3
  zypper in -t patch SUSE-2025-1350=1
• openSUSE Leap 15.4
  zypper in -t patch SUSE-2025-1350=1
• openSUSE Leap 15.5
  zypper in -t patch SUSE-2025-1350=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150500.27.36.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150500.27.36.1
• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 nosrc)
  • rust1.86-1.86.0-150300.7.5.1
• openSUSE Leap 15.6 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• Development Tools Module 15-SP6 (aarch64 ppc64le s390x x86_64)
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150500.27.36.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150500.27.36.1
• Development Tools Module 15-SP6 (aarch64 ppc64le s390x x86_64 nosrc)
  • rust1.86-1.86.0-150300.7.5.1
• Development Tools Module 15-SP6 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (aarch64 x86_64)
  • cargo-1.86.0-150300.21.52.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150300.21.52.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (aarch64 nosrc x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64)
  • rust-1.86.0-150400.24.42.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150400.24.42.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 nosrc x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64)
  • rust-1.86.0-150400.24.42.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150400.24.42.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 nosrc x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64)
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150500.27.36.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150500.27.36.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 nosrc x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64)
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150500.27.36.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150500.27.36.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 nosrc x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (aarch64 ppc64le s390x x86_64)
  • cargo-1.86.0-150300.21.52.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150300.21.52.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (aarch64 ppc64le s390x x86_64 nosrc)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
  • rust-1.86.0-150400.24.42.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150400.24.42.1
• SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64 nosrc)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150500.27.36.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150500.27.36.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64 nosrc)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (ppc64le x86_64)
  • cargo-1.86.0-150300.21.52.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150300.21.52.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (nosrc ppc64le x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
  • rust-1.86.0-150400.24.42.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150400.24.42.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4 (nosrc ppc64le x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150500.27.36.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
  • cargo-1.86.0-150500.27.36.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (nosrc ppc64le x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• SUSE Enterprise Storage 7.1 (aarch64 x86_64)
  • cargo-1.86.0-150300.21.52.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150300.21.52.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
• SUSE Enterprise Storage 7.1 (aarch64 nosrc x86_64)
  • rust1.86-1.86.0-150300.7.5.1
• SUSE Enterprise Storage 7.1 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
  • cargo-1.86.0-150300.21.52.1
  • cargo1.86-debuginfo-1.86.0-150300.7.5.1
  • rust-1.86.0-150300.21.52.1
  • rust1.86-debuginfo-1.86.0-150300.7.5.1
  • cargo1.86-1.86.0-150300.7.5.1
• openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586 nosrc)
  • rust1.86-1.86.0-150300.7.5.1
• openSUSE Leap 15.3 (noarch)
  • rust1.86-src-1.86.0-150300.7.5.1
• openSUSE Leap 15.3 (nosrc)
  • rust1.86-test-1.86.0-150300.7.5.1
• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
  • cargo-1.86.0-150400.24.42.1
  • rust-1.86.0-150400.24.42.1
• openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
  • cargo-1.86.0-150500.27.36.1
  • rust-1.86.0-150500.27.36.1

References:

• https://jira.suse.com/browse/PED-11411
• https://jira.suse.com/browse/SLE-18626