Currently, if I zip 3 iterators, I get an iterator to (&T, (&U, &M)) and if I keep doing that I'll get more and more nested. I've seen rust - How can I zip more than two iterators? - Stack Overflow and the only solution I found was using the iter_tools.
Isn't there a way already? This question is more than 1 year old so maybe there's a way.