Add internal _time feature to the Rust CLI

[ia0]

No description provided.

[gemini-code-assist]

Code Review

This pull request introduces an internal _time feature to measure inference time in the Rust CLI. The implementation is mostly correct, but I've found a critical issue in how the average inference time is calculated, which leads to an incorrect metric. I've also identified a potential division-by-zero error and a minor style issue. My review includes suggestions to fix these issues to ensure the feature provides accurate measurements and the code is robust and idiomatic.

[reyammer]

Was doing some clean up and saw this, makes sense to merge this one, seems useful?

[ia0]

Was doing some clean up and saw this, makes sense to merge this one, seems useful?

It depends how often we need to do measure performance. From experience it doesn't seem that often, so I would say we simply close this.