That code looks prettier than some C++ I've seen, though.

As someone who works on a medium-sized C++ codebase, Rust is definitely interesting to me. If nothing else, Rust's dependency management and cross-compilation tools would solve many of our headaches. We use a giant ball of shell script and Makefiles to cross-compile our dependencies for iOS and Android, and Cargo/rustup seem like they would solve much of that. We've also written a complicated system of macros for error handling, but Rust has that stuff built into the language. Oh, and it's just as fast as C++, so we wouldn't take any performance hit. If we could do the project over from scratch, I would definitely push for Rust.