Some more information on the problem\:I would love to see if the issue persists,
if I disable memory management entirely; but `threading/channels` requires me to
use ORC or ARC, and does not compile if I set anything else.I only just recently
realized that the latest nim releases mention that I should set `-d:useMalloc`
if I'm also using `--threading:on` - I haven't been doing that so far, even
though it has been working using nim 2.0.2.
When I set `useMalloc` and run the same test, a different string (which I am
passing as argument to the worker thread) reads garbage out, and it soon after
that prints "malloc()\: unaligned tcache chunk detected" and crashes.