Upgrade Rust to 1.69.0

[Zixing Liu]

Upgrade Rust to 1.69.0.

Notable changes from upstream:

- Cargo will now notify the user if the warnings are auto-fixable
- Cargo now instructs the rustc to avoid generating debug information for build scripts
- Several methods in `SocketAddr`, `SocketAddrV4` and `SocketAddV6` are now stable for const evaluation during the compile time

[Zixing Liu (liushuyu-011)]

I have prepared preliminary packages in a PPA: https://launchpad.net/~liushuyu-011/+archive/ubuntu/rust-updates-1.69/+packages.
And also, its corresponding source at https://git.launchpad.net/~canonical-foundations/ubuntu/+source/rustc/tree/?h=merge-1.69.
You can find the autopkgtest results on this page: https://autopkgtest.ubuntu.com/results/autopkgtest-mantic-liushuyu-011-rust-updates-1.69/?format=plain.

[Simon Chopin (schopin)]

I don't see much wrong about the contents of the 1.69, except that the changelog misses potentially important changes that I see in the git log, e.g. the removal of a patch because it's "not longer used" (I'd like some more explanations about that please? What changed?), the modifications to config.toml.in...

You know me, "why?" is my favorite question ;)

[Zixing Liu (liushuyu-011)]

Hi Simon,

I have added the detailed explanation in the changelog and re-committed the concerning commits with a new detailed commit message.

[Simon Chopin (schopin)]

Uploaded, thanks :)

[Launchpad Janitor (janitor)]

This bug was fixed in the package rustc - 1.69.0+dfsg0ubuntu1-0ubuntu1

---------------
rustc (1.69.0+dfsg0ubuntu1-0ubuntu1) mantic; urgency=medium

  * New upstream release 1.69.0 (LP: #2025691)
    - d/patches: Refresh patches
  * d/tests: Add a new smoke test for Cargo (originally from Nick Rosbrook)
    - d/tests/control: Removed architecture restriction from the original test
  * d/patches/c-2201-always-enable-nightly-features.patch: Removed due to
    superseded by d/p/d-0012-cargo-always-return-dev-channel.patch a newer
    patch that does the same thing

 -- Zixing Liu <email address hidden> Thu, 13 Jul 2023 15:13:25 +0800