Comment # 16 on bug 1192067 from Hans-Peter Jansen

Thanks guys, this is one of the most helpful bug records ever.

@Manfred: I depend so much on Firefox for my daily work (the company driven
with 1000 portals), that I've postponed any tests to the weekend, where I plan
to test your builds. Thank you very much for providing them (including ESR
builds). Because of https://bugzilla.mozilla.org/show_bug.cgi?id=1716989, I'm
still on 91, but your builds might even make a difference in this respect as
well, therefor I will gradually upgrade to your 91 build and (after another day
with backup) to 94.

@Aaron, @William, @Wolfgang: one thing, that makes me nervous is the errors
behavior. In Firefox, it seems to be sandbox related, but no real failure
there, apart from some hints of failing access to /dev/random. Why/how does
this break specific areas like WebRTC only, while most of the rest is acting
fine?

Without understanding, what and how it is going wrong, we'll have a hard time
to look for similar issues in other packages.

If it's, after all, "just" an "impedance mismatch" between llvm 13 and rust
1.55, something in the interface logic between them is broken, and the lesson
learned from this should be at least: build rust only with the llvm, that
upstream uses.