Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Rollup of 14 pull requests

Successful merges:

 - #138062 (Enable Non-determinism of float operations in Miri and change std tests )
 - #140560 (Allow `#![doc(test(attr(..)))]` everywhere)
 - #141001 (Make NonZero<char> possible)
 - #141295 (Stabilize `if let` guards (`feature(if_let_guard)`))
 - #141435 (Add (back) `unsupported_calling_conventions` lint to reject more invalid calling conventions)
 - #141447 (Document representation of `Option<unsafe fn()>`)
 - #142008 (const-eval error: always say in which item the error occurred)
 - #142053 (Add new Tier-3 targets: `loongarch32-unknown-none*`)
 - #142065 (Stabilize `const_eq_ignore_ascii_case`)
 - #142116 (Fix bootstrap tracing imports)
 - #142126 (Treat normalizing consts like normalizing types in deeply normalize)
 - #142140 (compiler: Sort and doc ExternAbi variants)
 - #142148 (compiler: Treat ForceWarning as a Warning for diagnostic level)
 - #142154 (get rid of spurious cfg(bootstrap))

r? `@ghost`
`@rustbot` modify labels: rollup

Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Rollup of 7 pull requests

Successful merges:

 - #141001 (Make NonZero<char> possible)
 - #141700 (Atomic intrinsics : use const generic ordering, part 2)
 - #141993 (Use the in-tree `compiler-builtins` for the sysroot)
 - #142008 (const-eval error: always say in which item the error occurred)
 - #142053 (Add new Tier-3 targets: `loongarch32-unknown-none*`)
 - #142132 (`tests/ui`: A New Order [6/N])
 - #142179 (store `target.min_global_align` as an `Align`)

r? `@ghost`
`@rustbot` modify labels: rollup

Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Rollup of 6 pull requests

Successful merges:

 - #141001 (Make NonZero<char> possible)
 - #141700 (Atomic intrinsics : use const generic ordering, part 2)
 - #142008 (const-eval error: always say in which item the error occurred)
 - #142053 (Add new Tier-3 targets: `loongarch32-unknown-none*`)
 - #142132 (`tests/ui`: A New Order [6/N])
 - #142179 (store `target.min_global_align` as an `Align`)

r? `@ghost`
`@rustbot` modify labels: rollup

Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Rollup of 11 pull requests

Successful merges:

 - #140774 (Affirm `-Cforce-frame-pointers=off` does not override)
 - #141001 (Make NonZero<char> possible)
 - #141700 (Atomic intrinsics : use const generic ordering, part 2)
 - #142008 (const-eval error: always say in which item the error occurred)
 - #142053 (Add new Tier-3 targets: `loongarch32-unknown-none*`)
 - #142089 (Replace all uses of sysroot_candidates with get_or_default_sysroot)
 - #142108 (compiler: Add track_caller to AbiMapping::unwrap)
 - #142132 (`tests/ui`: A New Order [6/N])
 - #142162 (UnsafePinned: update get() docs and signature to allow shared mutation)
 - #142171 (`tests/ui`: A New Order [7/N])
 - #142179 (store `target.min_global_align` as an `Align`)

r? `@ghost`
`@rustbot` modify labels: rollup

Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Rollup of 12 pull requests

Successful merges:

 - #141803 (Remove rustc's notion of "preferred" alignment AKA `__alignof`)
 - #142053 (Add new Tier-3 targets: `loongarch32-unknown-none*`)
 - #142089 (Replace all uses of sysroot_candidates with get_or_default_sysroot)
 - #142108 (compiler: Add track_caller to AbiMapping::unwrap)
 - #142132 (`tests/ui`: A New Order [6/N])
 - #142162 (UnsafePinned: update get() docs and signature to allow shared mutation)
 - #142171 (`tests/ui`: A New Order [7/N])
 - #142179 (store `target.min_global_align` as an `Align`)
 - #142183 (Added test for 30904)
 - #142194 (Remove all unused feature gates from the compiler)
 - #142199 (Do not free disk space in the `mingw-check-tidy` job)
 - #142210 (Run `mingw-check-tidy` on auto builds)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup merge of #142053 - heiher:loong32-none, r=wesleywiser

Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Rollup of 12 pull requests

Successful merges:

 - rust-lang/rust#141803 (Remove rustc's notion of "preferred" alignment AKA `__alignof`)
 - rust-lang/rust#142053 (Add new Tier-3 targets: `loongarch32-unknown-none*`)
 - rust-lang/rust#142089 (Replace all uses of sysroot_candidates with get_or_default_sysroot)
 - rust-lang/rust#142108 (compiler: Add track_caller to AbiMapping::unwrap)
 - rust-lang/rust#142132 (`tests/ui`: A New Order [6/N])
 - rust-lang/rust#142162 (UnsafePinned: update get() docs and signature to allow shared mutation)
 - rust-lang/rust#142171 (`tests/ui`: A New Order [7/N])
 - rust-lang/rust#142179 (store `target.min_global_align` as an `Align`)
 - rust-lang/rust#142183 (Added test for 30904)
 - rust-lang/rust#142194 (Remove all unused feature gates from the compiler)
 - rust-lang/rust#142199 (Do not free disk space in the `mingw-check-tidy` job)
 - rust-lang/rust#142210 (Run `mingw-check-tidy` on auto builds)

r? `@ghost`
`@rustbot` modify labels: rollup

Add new Tier-3 targets: `loongarch32-unknown-none*`

MCP: rust-lang/compiler-team#865

NOTE: LoongArch32 ELF object support is available starting with object v0.37.0.

Pkgsrc changes:
 * Adjust patches to adapt to upstream changes and new versions.
 * assosicated checksums

Upstream changes relative to 1.88.0:

Version 1.89.0 (2025-08-07)
==========================

Language
--------
- [Stabilize explicitly inferred const arguments (`feature(generic_arg_infer)`)]
  (rust-lang/rust#141610)
- [Add a warn-by-default `mismatched_lifetime_syntaxes` lint.]
  (rust-lang/rust#138677)
  This lint detects when the same lifetime is referred to by
  different syntax categories between function arguments and return
  values, which can be confusing to read, especially in unsafe
  code.  This lint supersedes the warn-by-default `elided_named_lifetimes`
  lint.
- [Expand `unpredictable_function_pointer_comparisons` to also lint
  on function pointer comparisons in external macros]
  (rust-lang/rust#134536)
- [Make the `dangerous_implicit_autorefs` lint deny-by-default]
  (rust-lang/rust#141661)
- [Stabilize the avx512 target features]
  (rust-lang/rust#138940)
- [Stabilize `kl` and `widekl` target features for x86]
  (rust-lang/rust#140766)
- [Stabilize `sha512`, `sm3` and `sm4` target features for x86]
  (rust-lang/rust#140767)
- [Stabilize LoongArch target features `f`, `d`, `frecipe`, `lasx`,
  `lbt`, `lsx`, and `lvz`]
  (rust-lang/rust#135015)
- [Remove `i128` and `u128` from `improper_ctypes_definitions`]
  (rust-lang/rust#137306)
- [Stabilize `repr128` (`#[repr(u128)]`, `#[repr(i128)]`)]
  (rust-lang/rust#138285)
- [Allow `#![doc(test(attr(..)))]` everywhere]
  (rust-lang/rust#140560)
- [Extend temporary lifetime extension to also go through tuple
  struct and tuple variant constructors]
  (rust-lang/rust#140593)

Compiler
--------
- [Default to non-leaf frame pointers on aarch64-linux]
  (rust-lang/rust#140832)
- [Enable non-leaf frame pointers for Arm64EC Windows]
  (rust-lang/rust#140862)
- [Set Apple frame pointers by architecture]
  (rust-lang/rust#141797)

Platform Support
----------------
- [Add new Tier-3 targets `loongarch32-unknown-none` and
  `loongarch32-unknown-none-softfloat`]
  (rust-lang/rust#142053)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]: https://doc.rust-lang.org/rustc/platform-support.html

Libraries
---------
- [Specify the base path for `file!`]
  (rust-lang/rust#134442)
- [Allow storing `format_args!()` in a variable]
  (rust-lang/rust#140748)
- [Add `#[must_use]` to `[T; N]::map`]
  (rust-lang/rust#140957)
- [Implement `DerefMut` for `Lazy{Cell,Lock}`]
  (rust-lang/rust#129334)
- [Implement `Default` for `array::IntoIter`]
  (rust-lang/rust#141574)
- [Implement `Clone` for `slice::ChunkBy`]
  (rust-lang/rust#138016)
- [Implement `io::Seek` for `io::Take`]
  (rust-lang/rust#138023)

Stabilized APIs
---------------

- [`NonZero<char>`]
  (https://doc.rust-lang.org/stable/std/num/struct.NonZero.html)
- Many intrinsics for x86, not enumerated here
  - [AVX512 intrinsics](rust-lang/rust#111137)
  - [`SHA512`, `SM3` and `SM4` intrinsics]
    (rust-lang/rust#126624)
- [`File::lock`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock)
- [`File::lock_shared`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock_shared)
- [`File::try_lock`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock)
- [`File::try_lock_shared`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock_shared)
- [`File::unlock`]
  (https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.unlock)
- [`NonNull::from_ref`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_ref)
- [`NonNull::from_mut`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_mut)
- [`NonNull::without_provenance`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.without_provenance)
- [`NonNull::with_exposed_provenance`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.with_exposed_provenance)
- [`NonNull::expose_provenance`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.expose_provenance)
- [`OsString::leak`]
  (https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.leak)
- [`PathBuf::leak`]
  (https://doc.rust-lang.org/stable/std/path/struct.PathBuf.html#method.leak)
- [`Result::flatten`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.flatten)
- [`std::os::linux::net::TcpStreamExt::quickack`]
  (https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.quickack)
- [`std::os::linux::net::TcpStreamExt::set_quickack`]
  (https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.set_quickack)

These previously stable APIs are now stable in const contexts:

- [`<[T; N]>::as_mut_slice`]
  (https://doc.rust-lang.org/stable/std/primitive.array.html#method.as_mut_slice)
- [`<[u8]>::eq_ignore_ascii_case`]
  (https://doc.rust-lang.org/stable/std/primitive.slice.html#impl-%5Bu8%5D/method.eq_ignore_ascii_case)
- [`str::eq_ignore_ascii_case`]
  (https://doc.rust-lang.org/stable/std/primitive.str.html#impl-str/method.eq_ignore_ascii_case)

Cargo
-----
- [`cargo fix` and `cargo clippy --fix` now default to the same
  Cargo target selection as other build commands.]
  (rust-lang/cargo#15192) Previously it
  would apply to all targets (like binaries, examples, tests, etc.).
  The `--edition` flag still applies to all targets.

- [Stabilize doctest-xcompile.]
  (rust-lang/cargo#15462) Doctests are
  now tested when cross-compiling. Just like other tests, it will
  use the [`runner` setting]
  (https://doc.rust-lang.org/cargo/reference/config.html#targettriplerunner)
  to run the tests. If you need to disable tests for a target, you
  can use the [ignore doctest attribute]
  (https://doc.rust-lang.org/rustdoc/write-documentation/documentation-tests.html#ignoring-targets)
  to specify the targets to ignore.

Rustdoc
-----
- [On mobile, make the sidebar full width and linewrap]
  (rust-lang/rust#139831). This makes long
  section and item names much easier to deal with on mobile.

Compatibility Notes
-------------------
- [Make `missing_fragment_specifier` an unconditional error]
  (rust-lang/rust#128425)
- [Enabling the `neon` target feature on `aarch64-unknown-none-softfloat`
  causes a warning]
  (rust-lang/rust#135160) because mixing
  code with and without that target feature is not properly supported
  by LLVM
- [Sized Hierarchy: Part I](rust-lang/rust#137944)
  - Introduces a small breaking change affecting `?Sized` bounds
    on impls on recursive types which contain associated type
    projections. It is not expected to affect any existing published
    crates. Can be fixed by refactoring the involved types or opting
    into the `sized_hierarchy` unstable feature. See the [FCP report]
    (rust-lang/rust#137944 (comment))
    for a code example.
- The warn-by-default `elided_named_lifetimes` lint is [superseded
  by the warn-by-default `mismatched_lifetime_syntaxes` lint.]
  (rust-lang/rust#138677)
- [Error on recursive opaque types earlier in the type checker]
  (rust-lang/rust#139419)
- [Type inference side effects from requiring element types of
  array repeat expressions are `Copy` are now only available at the
  end of type checking]
  (rust-lang/rust#139635)

- [The deprecated accidentally-stable
  `std::intrinsics::{copy,copy_nonoverlapping,write_bytes}` are now
  proper intrinsics]
  (rust-lang/rust#139916). There are no
  debug assertions guarding against UB, and they cannot be coerced
  to function pointers.
- [Remove long-deprecated `std::intrinsics::drop_in_place`]
  (rust-lang/rust#140151)
- [Make well-formedness predicates no longer coinductive]
  (rust-lang/rust#140208)
- [Remove hack when checking impl method compatibility]
  (rust-lang/rust#140557)
- [Remove unnecessary type inference due to built-in trait object impls]
  (rust-lang/rust#141352)
- [Lint against "stdcall", "fastcall", and "cdecl" on non-x86-32 targets]
  (rust-lang/rust#141435)
- [Future incompatibility warnings relating to the never type (`!`)
  are now reported in dependencies]
  (rust-lang/rust#141937)
- [Ensure `std::ptr::copy_*` intrinsics also perform the static
  self-init checks]
  (rust-lang/rust#142575)

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.

- [Correctly un-remap compiler sources paths with the `rustc-dev` component]
  (rust-lang/rust#142377)

This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://github.com/rust-lang/rust) | minor | `1.88.0` -> `1.89.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>rust-lang/rust (rust)</summary>

### [`v1.89.0`](https://github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1890-2025-08-07)

[Compare Source](rust-lang/rust@1.88.0...1.89.0)

\==========================

<a id="1.89.0-Language"></a>

## Language

- [Stabilize explicitly inferred const arguments (`feature(generic_arg_infer)`)](rust-lang/rust#141610)
- [Add a warn-by-default `mismatched_lifetime_syntaxes` lint.](rust-lang/rust#138677)
  This lint detects when the same lifetime is referred to by different syntax categories between function arguments and return values, which can be confusing to read, especially in unsafe code.
  This lint supersedes the warn-by-default `elided_named_lifetimes` lint.
- [Expand `unpredictable_function_pointer_comparisons` to also lint on function pointer comparisons in external macros](rust-lang/rust#134536)
- [Make the `dangerous_implicit_autorefs` lint deny-by-default](rust-lang/rust#141661)
- [Stabilize the avx512 target features](rust-lang/rust#138940)
- [Stabilize `kl` and `widekl` target features for x86](rust-lang/rust#140766)
- [Stabilize `sha512`, `sm3` and `sm4` target features for x86](rust-lang/rust#140767)
- [Stabilize LoongArch target features `f`, `d`, `frecipe`, `lasx`, `lbt`, `lsx`, and `lvz`](rust-lang/rust#135015)
- [Remove `i128` and `u128` from `improper_ctypes_definitions`](rust-lang/rust#137306)
- [Stabilize `repr128` (`#[repr(u128)]`, `#[repr(i128)]`)](rust-lang/rust#138285)
- [Allow `#![doc(test(attr(..)))]` everywhere](rust-lang/rust#140560)
- [Extend temporary lifetime extension to also go through tuple struct and tuple variant constructors](rust-lang/rust#140593)
- [`extern "C"` functions on the `wasm32-unknown-unknown` target now have a standards compliant ABI](https://blog.rust-lang.org/2025/04/04/c-abi-changes-for-wasm32-unknown-unknown/)

<a id="1.89.0-Compiler"></a>

## Compiler

- [Default to non-leaf frame pointers on aarch64-linux](rust-lang/rust#140832)
- [Enable non-leaf frame pointers for Arm64EC Windows](rust-lang/rust#140862)
- [Set Apple frame pointers by architecture](rust-lang/rust#141797)

<a id="1.89.0-Platform-Support"></a>

## Platform Support

- [Add new Tier-3 targets `loongarch32-unknown-none` and `loongarch32-unknown-none-softfloat`](rust-lang/rust#142053)
- [`x86_64-apple-darwin` is in the process of being demoted to Tier 2 with host tools](rust-lang/rfcs#3841)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]: https://doc.rust-lang.org/rustc/platform-support.html

<a id="1.89.0-Libraries"></a>

## Libraries

- [Specify the base path for `file!`](rust-lang/rust#134442)
- [Allow storing `format_args!()` in a variable](rust-lang/rust#140748)
- [Add `#[must_use]` to `[T; N]::map`](rust-lang/rust#140957)
- [Implement `DerefMut` for `Lazy{Cell,Lock}`](rust-lang/rust#129334)
- [Implement `Default` for `array::IntoIter`](rust-lang/rust#141574)
- [Implement `Clone` for `slice::ChunkBy`](rust-lang/rust#138016)
- [Implement `io::Seek` for `io::Take`](rust-lang/rust#138023)

<a id="1.89.0-Stabilized-APIs"></a>

## Stabilized APIs

- [`NonZero<char>`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html)
- Many intrinsics for x86, not enumerated here
  - [AVX512 intrinsics](rust-lang/rust#111137)
  - [`SHA512`, `SM3` and `SM4` intrinsics](rust-lang/rust#126624)
- [`File::lock`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock)
- [`File::lock_shared`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.lock_shared)
- [`File::try_lock`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock)
- [`File::try_lock_shared`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.try_lock_shared)
- [`File::unlock`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.unlock)
- [`NonNull::from_ref`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_ref)
- [`NonNull::from_mut`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.from_mut)
- [`NonNull::without_provenance`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.without_provenance)
- [`NonNull::with_exposed_provenance`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.with_exposed_provenance)
- [`NonNull::expose_provenance`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.expose_provenance)
- [`OsString::leak`](https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.leak)
- [`PathBuf::leak`](https://doc.rust-lang.org/stable/std/path/struct.PathBuf.html#method.leak)
- [`Result::flatten`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.flatten)
- [`std::os::linux::net::TcpStreamExt::quickack`](https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.quickack)
- [`std::os::linux::net::TcpStreamExt::set_quickack`](https://doc.rust-lang.org/stable/std/os/linux/net/trait.TcpStreamExt.html#tymethod.set_quickack)

These previously stable APIs are now stable in const contexts:

- [`<[T; N]>::as_mut_slice`](https://doc.rust-lang.org/stable/std/primitive.array.html#method.as_mut_slice)
- [`<[u8]>::eq_ignore_ascii_case`](https://doc.rust-lang.org/stable/std/primitive.slice.html#impl-%5Bu8%5D/method.eq_ignore_ascii_case)
- [`str::eq_ignore_ascii_case`](https://doc.rust-lang.org/stable/std/primitive.str.html#impl-str/method.eq_ignore_ascii_case)

<a id="1.89.0-Cargo"></a>

## Cargo

- [`cargo fix` and `cargo clippy --fix` now default to the same Cargo target selection as other build commands.](rust-lang/cargo#15192) Previously it would apply to all targets (like binaries, examples, tests, etc.). The `--edition` flag still applies to all targets.
- [Stabilize doctest-xcompile.](rust-lang/cargo#15462) Doctests are now tested when cross-compiling. Just like other tests, it will use the [`runner` setting](https://doc.rust-lang.org/cargo/reference/config.html#targettriplerunner) to run the tests. If you need to disable tests for a target, you can use the [ignore doctest attribute](https://doc.rust-lang.org/rustdoc/write-documentation/documentation-tests.html#ignoring-targets) to specify the targets to ignore.

<a id="1.89.0-Rustdoc"></a>

## Rustdoc

- [On mobile, make the sidebar full width and linewrap](rust-lang/rust#139831). This makes long section and item names much easier to deal with on mobile.

<a id="1.89.0-Compatibility-Notes"></a>

## Compatibility Notes

- [Make `missing_fragment_specifier` an unconditional error](rust-lang/rust#128425)
- [Enabling the `neon` target feature on `aarch64-unknown-none-softfloat` causes a warning](rust-lang/rust#135160) because mixing code with and without that target feature is not properly supported by LLVM
- [Sized Hierarchy: Part I](rust-lang/rust#137944)
  - Introduces a small breaking change affecting `?Sized` bounds on impls on recursive types which contain associated type projections. It is not expected to affect any existing published crates. Can be fixed by refactoring the involved types or opting into the `sized_hierarchy` unstable feature. See the [FCP report](rust-lang/rust#137944 (comment)) for a code example.
- The warn-by-default `elided_named_lifetimes` lint is [superseded by the warn-by-default `mismatched_lifetime_syntaxes` lint.](rust-lang/rust#138677)
- [Error on recursive opaque types earlier in the type checker](rust-lang/rust#139419)
- [Type inference side effects from requiring element types of array repeat expressions are `Copy` are now only available at the end of type checking](rust-lang/rust#139635)
- [The deprecated accidentally-stable `std::intrinsics::{copy,copy_nonoverlapping,write_bytes}` are now proper intrinsics](rust-lang/rust#139916). There are no debug assertions guarding against UB, and they cannot be coerced to function pointers.
- [Remove long-deprecated `std::intrinsics::drop_in_place`](rust-lang/rust#140151)
- [Make well-formedness predicates no longer coinductive](rust-lang/rust#140208)
- [Remove hack when checking impl method compatibility](rust-lang/rust#140557)
- [Remove unnecessary type inference due to built-in trait object impls](rust-lang/rust#141352)
- [Lint against "stdcall", "fastcall", and "cdecl" on non-x86-32 targets](rust-lang/rust#141435)
- [Future incompatibility warnings relating to the never type (`!`) are now reported in dependencies](rust-lang/rust#141937)
- [Ensure `std::ptr::copy_*` intrinsics also perform the static self-init checks](rust-lang/rust#142575)
- [`extern "C"` functions on the `wasm32-unknown-unknown` target now have a standards compliant ABI](https://blog.rust-lang.org/2025/04/04/c-abi-changes-for-wasm32-unknown-unknown/)

<a id="1.89.0-Internal-Changes"></a>

## 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.

- [Correctly un-remap compiler sources paths with the `rustc-dev` component](rust-lang/rust#142377)

</details>

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