Fixed memory leak on Apple platforms

[aw-cf]

Fixes #16.

• Avoids the unnecessary allocation of thread_state
• Ensures the mach port rights, as well as the thread list is deallocated

[jhpratt]

CI is failing with a linker error. This may not be related, as the most recent commit on main is a merged PR that attempted to address this. cc @Freaky if you recall anything?

[Freaky]

Rust 1.54 fixed a compile issue with Xcode 14, perhaps we need to pin that to 13 with something like:

run: sudo xcode-select -s '/Applications/Xcode_13.4.1.app'

[thibault-ml]

Is it not possible to use the latest Rust (1.75) + latest Xcode (15.2)?

[thibault-ml]

@Freaky @jhpratt is there any way we can help here? :-)

[jhpratt]

With CI failing, I have no idea. I'm not familiar with Mac APIs.

[thibault-ml]

@jhpratt I've created a PR to update the Rust version, which should fix compiling on macOS: #20

[thibault-ml]

@jhpratt @Freaky now that we upped the MSRV, I believe this PR should build. Can we rerun the builds?

[jhpratt]

The current CI config doesn't let me queue a manual run. If you run git commit --amend --no-edit && git push -f when nothing is staged, it has the same effect as queueing a new CI run.

[thibault-ml]

Nice, looks like we're all green :-)

@jhpratt @Freaky Anything else you need?

[jhpratt]

LGTM! Merged and releasing momentarily.