Nim has that except for the ecosystem. And it's also kind of janky, enough that I got so frustrated I stopped trying to use it. But you might have better luck than I did; check it out if you haven't.
That's a terrible recommendation!
If they made iterators work how they seem they should work, I would come right back to Nim. It does so many things right but this one thing is a dealbreaker for me. The UFCS is practically begging me to chain lazy iterators together but actually trying it is like stepping on a rake.
Lazy iterators and generators are something I've missed in Rust. Haskell has them just by nature of everything being lazy and I love that. But I've become too familiar with Python, and unless runtime performance is a bottleneck, Haskell hasn't been the path of least resistance for most of my practical problems.
Just Python and shell scripting. All this stuff is for hobbyist programming not my day job, so I just shelved the stuff that need performance and dusted off some projects that don't. I'm learning Rust at the minute but it's slower going, I'm not at the level where I can make the stuff I want.