Thanks very much for this detailed information, it's very helpful. I've filed https://github.com/gfx-rs/metal-rs/issues/222 https://github.com/gfx-rs/metal-rs/i

Thanks very much for this detailed information, it's very helpful. I've filed https://github.com/gfx-rs/metal-rs/issues/222 https://github.com/gfx-rs/metal-rs/issues/222 to track it in the Rust ecosystem side.