Rust will have plenty of time to invent whole new categories of mistake, if it ever catches on. It started out with a raft of old familiar mistakes, and shed th

Rust will have plenty of time to invent whole new categories of mistake, if it ever catches on. It started out with a raft of old familiar mistakes, and shed them over the years leading up to the 1.0 release, such as non-contiguous stacks and green threads. Maybe the way async is specified will turn out to have been one of the mistakes. It has, anyway, mechanisms to shed old mistakes that are not relied on much.