I think the thing that rubs me the wrong way is that Rust was supposed to be "fearless" concurrency. Go doesn't claim that title so I'm not offended when it doesn't live up to it.
I can’t say whether it was rushed out, but it’s clearly not everything it was advertised to be. Early on, the big talking point was that the async implementation was so modular you could swap runtimes like Lego bricks. In reality, that’s nowhere near true. Changing runtimes means changing every I/O dependency (mutexes, networking, fs), because everything is tightly coupled to the runtime. I raised this in a Reddit thread some time ago, and the feedback there reinforced that I'm not the only one with a sour Rust async taste in my mouth. https://www.reddit.com/r/rust/comments/1f4z84r/is_it_fair_to...