I got back into Rust this year via WebAssembly! It was really fun to make this little A* pathfinding demo: https://github.com/jakedeichert/wasm-astar
After that little project, I got started on an api service in Crystal. Crystal was interesting to try out, but I decided to switch to Rust after a few weeks since the ecosystem/community is much larger. I first chose to use the Rocket framework [0] but switched to actix-web [1] after a few weeks so I didn't have to use nightly anymore. So far actix-web has been great, but I'll be keeping my eye on Rocket going stable hopefully sometime in 2019, and also another library called warp [2].
I've also got another wasm project in the works... hoping to finish that off soon and publish sometime next month.
[0]: https://github.com/SergioBenitez/Rocket