I don't really consider this to be "great IDE support", I consider this to be a start at IDE support. I love Rust, and I'm productive even without racer or YCM

I don't really consider this to be "great IDE support", I consider this to be a start at IDE support. I love Rust, and I'm productive even without racer or YCM -- but I think there's a large gap between what Rust has and what many IDEs get you. Most Java/C# IDEs will get you: - Type-based autocomplete (racer/YCM/etc have this for Rust) - Jump-to-definition / documentation (YCM/etc has this) - Autoimport - Non-grep-based refactoring - Auto-boilerplating: for example, type `impl Trait for MyType` and have it tab-complete to a skeleton trait impl - Some error integration (not just fileline jump-to), with tooltips and stuff asking you how you want the IDE to auto-fix the error - A bunch of other smaller useful things which I can't remember at the moment Now, autocomplete is a major chunk of this, but nowhere near being all of it. The way I see it there are two camps on this issue. There's the "text editor" camp who use vim/emacs/sublime and when they are asking for IDE support they just mean autocomplete and jump-to that works from their editor. Then there's the camp coming from Eclipse or VS who want the whole deal. The Rust Language Server project (https://github.com/jonathandturner/rls https://github.com/jonathandturner/rls) is working on exposing this info from the compiler in a structured form so that IDEs and "text editor"s alike can get IDE features.