I'm curious where Rust fits in on your hierarchy with their emphasis on "zero cost abstractions". Of course that's more a lofty ideal than reality but it means

I'm curious where Rust fits in on your hierarchy with their emphasis on "zero cost abstractions". Of course that's more a lofty ideal than reality but it means that at least in some cases it does much better than C++. Is it a long program? Something that could be posted in a Github Gist maybe?