It's a native program; it's not going to morph out from under you. The Rust build system swears by semver compatibility, and crates.io is a permanent repository

It's a native program; it's not going to morph out from under you. The Rust build system swears by semver compatibility, and crates.io is a permanent repository; it's not going to stop building. So what critique are you actually making, that {random C++ project} survives?