https://news.ycombinator.com/item?id=46684673 (reply to sibling)

> I think it's fair to expect that it will stabilize in time.

The allocator work is facing a lot of obstacles, unfortunately. I prefer it to be unstable for as long as it needs, though.

> Quite a few have already been implemented and are available as libraries exactly as you describe, today. I wouldn't phrase that as "Rust has GC" because that might imply that the GC is required.

This is exactly my point. Rust does not prevent GC by any means, but Rust also does not encourage GC by any means. The same goes for custom allocators, aside from the highly-unstable Allocator API.