I'm gonna be That Guy and point out that rayon addresses parallelism, not concurrency (which is crossbeam's domain). My favorite explanation of the difference (

I'm gonna be That Guy and point out that rayon addresses parallelism, not concurrency (which is crossbeam's domain). My favorite explanation of the difference (by the inimitable yosefk): https://yosefk.com/blog/parallelism-and-concurrency-need-different-tools.html https://yosefk.com/blog/parallelism-and-concurrency-need-dif....