Nightly to Stable clarification

[NikitaMasych]

Hello guys!

I see that you rely on nightly rust, so I was wondering whether it is possible to patch the library with only degraded performance, but keeping security and all features working in order to switch to stable.

This is a rough patch of how I guess it should look.

[Nashtare]

Hi! This is something we've been slightly reluctant to do because of the expected performance downgrade (and given that the remaining unstable features are not that problematic (compared to the past usage of things like generic_const_exprs).

Would you happen to have benchmarked the difference from nightly to stable on either avx/neon?

[NikitaMasych]

Got it. I have checked performance of simple factorial circuit from your examples in native rust and in wasm for both current version and my patch (stable) and there were no difference in efficiency of verification, that's all I can say

[Nashtare]

Interesting, feel free to open a PR then, we can do some more extensive benchmarking while reviewing :)