I'd like to respond by this and saying I'm porting a largeish codebase over to Rust for one purpose: I can embed it other languages, and I can into it from any language that exposes an FFI.
The goal is to move all business logic out of javascript on an nwjs desktop/crosswalk mobile app and move it to Rust. The interface would still be javascript, but the core logic (and crypto) would live in Rust. This gives me a portable core I can move between platforms, and in theory all that has to change is the UI (but not really, because in most cases the platforms run Javascript).
I don't think Go can be as easily embedded (because of its runtime) but perhaps I'm wrong.
The goal is to move all business logic out of javascript on an nwjs desktop/crosswalk mobile app and move it to Rust. The interface would still be javascript, but the core logic (and crypto) would live in Rust. This gives me a portable core I can move between platforms, and in theory all that has to change is the UI (but not really, because in most cases the platforms run Javascript).
I don't think Go can be as easily embedded (because of its runtime) but perhaps I'm wrong.