Crating is horrible. How about that to start with. String -> Str() -> String. Macros? Really Macros? Bindgen doesn't work, exceptions are not handled properly, creating a thin layer between Rust and Ogre3D was seriously inconvienant.

I heard all of the hype, and I completely fell for it. This is not a language for game developers (35 years experience in game development here).

Oh, how about some simple data structures you need. Like developing dynamic graphs with pointers needed to and fro. What a serious PIA.