I love Rust, but I don't think that using a subset of Rust is a real option at this point. You'd have to stop using other libraries and even the standard library for this - and while it's possible, it definetly won't make your life easier. Rust has a wonderful community, but it's mostly filled with enthusiasts who're actively using nightly, so if you try to do things in a more limited way, you'll be on your own very often - much more often than for example I, personally, would be comfortable.
This is true, but doesn't refute my point. If you want not only to write something in Rust, but also to participate in the community and get help from it, it's much easier to do it if you're using nightly.
I consider myself an experienced developer, but unlike other new technologies, which I almost always learn just from documentation, with Rust I often turn to community for help. I understand that this complexity is neccessary and I wouldn't Rust to be easier, of course. But still, with Rust's complexity and overwhelming amount of information that's already out of date with the best practices - it sometimes seems that over a half of google results on stack overflow are still about pre-1.0 Rust. And when we (people who learn Rust) turn to the community, it usually tells us (in the most helpful and nice way, of course) "just use nightly".
Yes, it is a bit unfortunate that many suggest nightly. It makes sense, given that they’re enthusiasts, and therefore know all about the latest and greatest. But, these days, it’s becoming rarer and rarer to actually need it. But that’s only generally; it’s true that embedded often still needs nightly, though that should change pretty soon!
I wish Google didn’t customize results so much; I rarely see anything pre-1.0. It really makes it hard to figure out how to best help :/
If a library uses nightly, then you have to use nightly to use it.
At this point, the only major library that requires nightly is Rocket, and Actix-web has been rapidly ascendant due to (rumordly) being used in production by Microsoft, and working on stable.
