i did not expect this to be problematic so soon, based on what i'd
read in various places about the stability of nightly (especially so
for the most common platforms like x86_64, etc)
as i write this commit message, all nightly versions past this date
fail to build ggdt, failing with an "illegal instruction" error.
sigh. this makes me question whether trying to use simd right now is
actually worth it ...
i really did not want to use nightly, but i think it is worth it for
portable_simd which is still nightly-only (and i'm guessing will be
for a long while still). i was not particularly enthusiastic about any
of the alternative libraries that exist for stable rust simd, as it
always seemed like something small was missing from what i knew i would
want longer term.
Gered