> Async rust is horrible. Especially compared to futures / promises in almost any other language.
Having written a bunch of async code over 20 years (first exposure was twisted in the early 2000s and all sorts of stuff since - including manual function/stack wrangling on my own reactor), async in rust is like many other things in rust: It forces you to deal with the problems up-front rather than 6-12 months later once something is in prod. It helps to stop and understand why the compiler is yelling at you - for me anyway once I do grok that I'm glad I didn't have a repeat of $BUG_THAT_TOOK_DOWN_PROD_FOR_A_WEEK - that was a bad week.
Having written a bunch of async code over 20 years (first exposure was twisted in the early 2000s and all sorts of stuff since - including manual function/stack wrangling on my own reactor), async in rust is like many other things in rust: It forces you to deal with the problems up-front rather than 6-12 months later once something is in prod. It helps to stop and understand why the compiler is yelling at you - for me anyway once I do grok that I'm glad I didn't have a repeat of $BUG_THAT_TOOK_DOWN_PROD_FOR_A_WEEK - that was a bad week.