rust non-determinism

[John Gilmore]

Bernhard M. Wiedemann <bernhardout at lsmod.de> wrote:
> => https://github.com/rust-lang/rust/issues/128675

Two Rustc developers closed it within 8 hours as "already completed",
even though it isn't.

They also said "CGU partitioning is very deliberately designed to be
deterministic."  Implying that therefore there is no bug, because design
and implementation are the same thing?

Rust has 36 open reproducibility bugs (not including this closed one).
It'd be worth seeing what other ones they closed unfixed.

  https://github.com/rust-lang/rust/labels/A-reproducibility

A bug with similar effects is still open since Nov 10, 2023 here:

   Parallel frontend (-Z threads=8) results in a different output than single-threaded #117776 
  https://github.com/rust-lang/rust/issues/117776

	John