Rust's type system is much closer to Haskell than Go, and even advocates of the language will admit that it can sometimes be very difficult to convince the comp

Rust's type system is much closer to Haskell than Go, and even advocates of the language will admit that it can sometimes be very difficult to convince the compiler that your program is valid. Compile speed isn't great either, although it's been improving. I would say that Rust is pretty much on the other end of the scale from the author's supposed "sweet spot".