Minimal backport-suitable fix to avoid returning `UNSUPPORTED_PLATFORM`
for `wasm32-wasip1-threads` which has a working pthreads implementation
via `emnapi`.

The stable regression was reported in
<#153475>.

```
$ git log --oneline 85eff7c80277b57f78b11e28d14154ab12fcf643..292f395c297d4f99171325b0842ac4ea4ff3b386
292f395c2 (HEAD) [stable 1.94] Fix symlink_and_directory when running in a long target dir name (#16777)
d00475981 Fix symlink_and_directory when running in a long target dir name (#16775)
ce98781f7 [stable 1.94] Update tar to 0.4.45 (#16769)
fec7f9297 Update tar to 0.4.45
5e256e377 Add a test for a tar file with a symlink and directory of the same name
1ed92053d test: Remove unused docker ip_address (#16636)
d7a2a0307 Increase cache_lock test timeout (#16545)
95d93fb89 Don't check the specific build-std output
dfbe729f6 chore: Updated compiler errors for Rust 1.93 (#16543)
cb03b21f6 Update cargo-semver-checks to 0.47.0
f7777c4f9 test(build-std): Update error message (#16658)
a56abe18a Disable custom target JSON spec test
634668d49 fix: `--remap-path-scope` stabilized in 1.95-nightly (#16536)
d428eaa44 fix(script): surpress `unused_features` lint for embedded (#16714)
e7b27c7f9 test(git): Mark a test as non-deterministic (#16706)
38922ca44 test(replace): Mark a test as non-deterministic (#16700)
```

This applies the patch for that PR, fixing an ICE in match_same_arms.

[stable] 1.94.1 release


This backports:

* [STABLE] library: wasm32-wasip1-threads has functional pthreads #153634
* Move freeze_* methods to OpenOptionsExt2 #153491
* [Clippy] Fix ICE in match_same_arms rust-lang/rust-clippy#16685

Cargo:

* [stable 1.94] Fix symlink_and_directory when running in a long target dir name (rust-lang/cargo#16777)
* Fix symlink_and_directory when running in a long target dir name (rust-lang/cargo#16775)
* [stable 1.94] Update tar to 0.4.45 (rust-lang/cargo#16769)
* test: Remove unused docker ip_address (rust-lang/cargo#16636)
* Increase cache_lock test timeout (rust-lang/cargo#16545)
* chore: Updated compiler errors for Rust 1.93 (rust-lang/cargo#16543)
* test(build-std): Update error message (rust-lang/cargo#16658)
* fix: `--remap-path-scope` stabilized in 1.95-nightly (rust-lang/cargo#16536)
* fix(script): surpress `unused_features` lint for embedded (rust-lang/cargo#16714)
* test(git): Mark a test as non-deterministic (rust-lang/cargo#16706)
* test(replace): Mark a test as non-deterministic (rust-lang/cargo#16700)

1 commits in 292f395c297d4f99171325b0842ac4ea4ff3b386..29ea6fb6a5db279426f4cc4e17aa385f05a0cfbc
2026-03-21 06:42:37 -0500 to 2026-03-24 17:37:48 -0400
- [stable 1.94] Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16787)

Cargo stable backports

1 commits in 292f395c297d4f99171325b0842ac4ea4ff3b386..29ea6fb6a5db279426f4cc4e17aa385f05a0cfbc
2026-03-21 06:42:37 -0500 to 2026-03-24 17:37:48 -0400
- [stable 1.94] Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16787)

Update release notes to mention the Cargo fix and fix broken link.