Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety. This will build rust from source, which requires using the "official" stage0 compiler for the version being built from rust-lang.org, which is currently the previous stable version. If you already have rust and cargo installed, this slackbuild will use these to bootstrap itself. You can also force either behaviour through the LOCAL_BOOTSTRAP=yes|no parameter. LOCAL_BOOTSTRAP=no ./rust.SlackBuild