Signed-off-by: onur-ozkan <[email protected]>
(cherry picked from commit d2203ad)

Signed-off-by: onur-ozkan <[email protected]>
(cherry picked from commit e4ca11f)

(cherry picked from commit 0dfe2ae)

(cherry picked from commit 3cb53df)

Fixes #137898

The generated multi-test harness relies on nightly-only APIs,
so the only way to run it on stable is to enable them. Since
tests that use crate attrs don't be merged, there's no way to use
nightly-only features on it anyway.

(cherry picked from commit 5d6eeea)

This prevents the included test case from getting at nightly-only
features when run on stable. The harness builds with
RUSTC_BOOTSTRAP, but the bundle doesn't.

(cherry picked from commit 9cf531d)

These changed in the stable backport because we don't have the rewording
that came in #133154.

(cherry picked from commit b6f2240)

…in rustdoc

(cherry picked from commit 039af88)

(cherry picked from commit dc04c0c)

(cherry picked from commit 4c939db)

(cherry picked from commit 25617c7)

(cherry picked from commit e3117e6)

[stable] Release 1.85.1

- [Fix the doctest-merging feature of the 2024 Edition.](#137899)
- [Relax some `target_feature` checks when generating docs.](#137632)
- [Fix errors in `std::fs::rename` on Windows 1607.](#137528)
- [Downgrade bootstrap `cc` to fix custom targets.](#137460)
- [Skip submodule updates when building Rust from a source tarball.](#137338)

Added backports to fix CI:

- Remove latest Windows SDK from 32-bit CI #137753
- Do not install rustup on Rust for Linux job #137947

cc `@rust-lang/release`
r? cuviper