Increase Rust recomended toolchain to 1.59

[mulkieran]

• Fix any newly introduced compiler or clippy errors
• Give karma for f35 release: https://bodhi.fedoraproject.org/updates/FEDORA-2022-3bd845ce5a
  Make sure that all our Rust projects can be formatted, built, linted, and lightly tested with the new Rust toolchain. Skipped.
• Bump current development toolchain in GitHub workflows
• Extra: Give karma for f35 patch release; https://bodhi.fedoraproject.org/updates/FEDORA-2022-3bd845ce5a
  Make sure that all our Rust projects can be formatted, built, linted, and lightly tested with the new Rust toolchain. Any arch.

[mulkieran]

Starting Friday

[mulkieran]

F35 release of Rust is held up due to negative karma caused by non-terminating build.

[mulkieran]

Related bz for non-terminating compilation is here: https://bugzilla.redhat.com/show_bug.cgi?id=2058803.

[mulkieran]

We would want to do this on an s390x machine, because that is where the non-terminating bug has surfaced.

[mulkieran]

Resolved by merged PRs.

[mulkieran]

Upstream PR for Rust rust-lang/rust#94505.

[mulkieran]

@bgurney-rh You can do the "Extra" step whenever you're ready.

[bgurney-rh]

Everything looks good; I just granted karma.

[mulkieran]

Closing once more...