Go production build is quite small as much as I can say, but I don't understand much at compilers so I will not discuss this. I've a lot of hands on experience

Go production build is quite small as much as I can say, but I don't understand much at compilers so I will not discuss this. I've a lot of hands on experience with both Go and Rust, and on mid size project, an incremental production build in Go will take less than 1 second, whereas a development (non release) incremental build in Rust will take 10/15s (something as simple as a `println!` update). It's subjective, but it's not much exaggerated to tell that a Go prod build is >10x faster than a Rust dev build So, I get your point for production build, that it needs some special optimization that maybe doesn't happen for Go, but I don't need any optimization when doing Dev testing and this could well remain totally unoptimized. Then I would at least expect for an "un-optimized" dev Rust build to be roughly as fast as a production Go build. At least not >10x slower