Rust/WinRT follows in the tradition established by C++/WinRT of building language projections for the Windows Runtime using standard languages and compilers, providing a natural and idiomatic way for Rust developers to call Windows APIs.
Ride is a Rust IDE. It's named after concatenating R from rust and IDE. It's currently not in a usable state. If you're looking for something more complete, perhaps RustDT for Eclipse, SolidOak or Rust for brackets is your thing.