And this is getting nauseating even to these wanting to give it a try. I'm in the step of walking away and forget about it until the dirt settles down (and it becomes at least as fast as C/C++ or... even Go)
I was competing against some C and C++ software developers in Advent of Code with efficient solutions, and my Rust solutions came out faster each time. Might want to check your facts.
Since you chose to be cute, I'm going to take a guess that you think this means the comparison between the tools is unfair. If that's an accurate interpretation, then I will say that your question is irrelevant because ripgrep is faster or as fast as GNU grep on benchmarks using a single thread too. In fact, that's the whole point! It says so right in the project's README.
Ok, interesting analysis. I will look more on Rust and maybe try something myself. But by reading your other posts about optimizing Rust to do search, it seems to require a lot of experience to tune Rust code.
Rust should be roughly the same, speed-wise.