Crossfire: High-performance lockless spsc/mpsc/mpmc channels for Rust

Using stuff like this, does it make sense to use Rust in a golang-style where instead of async and its function colouring, you spawn coroutines and synchronize over channels?

It doesn't matter if you use channels or mutexes to communicate between tasks, you still need your function to be async to spawn it as a coroutine. Your only choice is between coroutines (async tasks spawned on an executor) or regular OS threads. Channels work with both, the rule of thumb is to use async when your workload is IO-bound, and threads when it is compute-bound. Then, it's up to you whether you communicate by sharing memory or share memory by communicating.