Last year I decided to learn Rust by doing the Advent of Code in it: two puzzles every day of December leading up to Christmas. I had a great time and learned a lot about Rust, and I'd highly recommend this as a way to learn a language.
Since this is a bit off-topic for the Effective TypeScript blog, I posted my writeup on Medium. If you're interested in Rust, check it out: Advent of Code 2020 (this time in Rust).
TL;DR: Rust is an interesting language that works great for a specific niche, but it's a bit annoying to work with and I wouldn't choose to use it unless I was working in its niche. Also, this year's Advent of Code was too easy!