Recommended update for rust, rust1.61

Announcement ID:	SUSE-RU-2022:2387-1
Rating:	moderate
References:
Affected Products:	Development Tools Module 15-SP3 Development Tools Module 15-SP4 openSUSE Leap 15.3 openSUSE Leap 15.4 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise Desktop 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Real Time 15 SP4 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.2 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.2 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.2 SUSE Manager Server 4.3

An update that can now be installed.

Description:

This update for rust, rust1.61 fixes the following issues:

This updates ships rust1.61.

Version 1.61.0 (2022-05-19)

Language

• const fn signatures can now include generic trait bounds
• const fn signatures can now use impl Trait in argument and return position
• Function pointers can now be created, cast, and passed around in a const fn
• Recursive calls can now set the value of a function's opaque impl Trait return type

Compiler

• Linking modifier syntax in #[link] attributes and on the command line, as well as the whole-archive modifier specifically, are now supported
• The char type is now described as UTF-32 in debuginfo
• he [#[target_feature]][target_feature] attribute [can now be used with aarch64 features
• X86 [#[target_feature = "adx"] is now stable

Libraries

• ManuallyDrop<T> is now documented to have the same layout as T
• #[ignore = "…"] messages are printed when running tests
• Consistently show absent stdio handles on Windows as NULL handles
• Make std::io::stdio::lock() return 'static handles. Previously, the creation of locked handles to stdin/stdout/stderr would borrow the handles being locked, which prevented writing let out = std::io::stdout().lock(); because out would outlive the return value of stdout(). Such code now works, eliminating a common pitfall that affected many Rust users.
• Vec::from_raw_parts is now less restrictive about its inputs
• std::thread::available_parallelism now takes cgroup quotas into account. Since available_parallelism is often used to create a thread pool for parallel computation, which may be CPU-bound for performance, available_parallelism will return a value consistent with the ability to use that many threads continuously, if possible. For instance, in a container with 8 virtual CPUs but quotas only allowing for 50% usage, available_parallelism will return 4.

Stabilized APIs

• Pin::static_mut
• Pin::static_ref
• Vec::retain_mut
• VecDeque::retain_mut
• Write for Cursor<[u8; N]>
• std::os::unix::net::SocketAddr::from_pathname
• std::process::ExitCode and std::process::Termination. The stabilization of these two APIs now makes it possible for programs to return errors from main with custom exit codes.
• std::thread::JoinHandle::is_finished]

These APIs are now usable in const contexts:

• <*const T>::offset and <*mut T>::offset
• <*const T>::wrapping_offset and <*mut T>::wrapping_offset
• <*const T>::add and <*mut T>::add
• <*const T>::sub and <*mut T>::sub
• <*const T>::wrapping_add and <*mut T>::wrapping_add
• <*const T>::wrapping_sub and <*mut T>::wrapping_sub
• <[T]>::as_mut_ptr
• <[T]>::as_ptr_range
• <[T]>::as_mut_ptr_range

Cargo

No feature changes, but see compatibility notes.

Compatibility Notes

• Previously native static libraries were linked as whole-archive in some cases, but now rustc tries not to use whole-archive unless explicitly requested. This change may result in linking errors in some cases. To fix such errors, native libraries linked from the command line, build scripts, or [#[link] attributes][link-attr] need to
• (more common) either be reordered to respect dependencies between them (if a depends on b then a should go first and b second)
• (less common) or be updated to use the [+whole-archive] modifier.
• Catching a second unwind from FFI code while cleaning up from a Rust panic now causes the process to abort
• Proc macros no longer see ident matchers wrapped in groups
• The number of # in r# raw string literals is now required to be less than 256
• When checking that a dyn type satisfies a trait bound, supertrait bounds are now enforced
• cargo vendor now only accepts one value for each --sync flag
• cfg predicates in all() and any() are always evaluated to detect errors, instead of short-circuiting. The compatibility considerations here arise in nightly-only code that used the short-circuiting behavior of all to write something like cfg(all(feature = "nightly", syntax-requiring-nightly)), which will now fail to compile. Instead, use either cfg_attr(feature = "nightly", ...) or nested uses of cfg.
• bootstrap: static-libstdcpp is now enabled by default, and can now be disabled when llvm-tools is enabled

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 15.3
  zypper in -t patch SUSE-2022-2387=1
• openSUSE Leap 15.4
  zypper in -t patch openSUSE-SLE-15.4-2022-2387=1
• Development Tools Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP3-2022-2387=1
• Development Tools Module 15-SP4
  zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP4-2022-2387=1

Package List:

• openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
  • cargo1.61-debuginfo-1.61.0-150300.7.3.1
  • cargo-1.61.0-150300.21.26.1
  • rust1.61-debuginfo-1.61.0-150300.7.3.1
  • rust-1.61.0-150300.21.26.1
  • rust1.61-1.61.0-150300.7.3.1
  • cargo1.61-1.61.0-150300.7.3.1
• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64)
  • cargo1.61-debuginfo-1.61.0-150300.7.3.1
  • cargo-1.61.0-150300.21.26.1
  • rust1.61-debuginfo-1.61.0-150300.7.3.1
  • rust-1.61.0-150300.21.26.1
  • rust1.61-1.61.0-150300.7.3.1
  • cargo1.61-1.61.0-150300.7.3.1
• Development Tools Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • cargo1.61-debuginfo-1.61.0-150300.7.3.1
  • cargo-1.61.0-150300.21.26.1
  • rust1.61-debuginfo-1.61.0-150300.7.3.1
  • rust-1.61.0-150300.21.26.1
  • rust1.61-1.61.0-150300.7.3.1
  • cargo1.61-1.61.0-150300.7.3.1
• Development Tools Module 15-SP4 (aarch64 ppc64le s390x x86_64)
  • cargo1.61-debuginfo-1.61.0-150300.7.3.1
  • cargo-1.61.0-150300.21.26.1
  • rust1.61-debuginfo-1.61.0-150300.7.3.1
  • rust-1.61.0-150300.21.26.1
  • rust1.61-1.61.0-150300.7.3.1
  • cargo1.61-1.61.0-150300.7.3.1