> Funnily enough, I'm using the rustc compiler from Debian repositories (who of course is not well-known for eagerness to adopt bleeding-edge), and I've not run

> Funnily enough, I'm using the rustc compiler from Debian repositories (who of course is not well-known for eagerness to adopt bleeding-edge), and I've not run into any Rust code that wouldn't work with that compiler. Oh hey, there's two of us ;-) My shoulders relaxed significantly when I also put Cargo in offline mode, pointed it to the directory where Debian installs its librust-*-dev packages, and stopped downloading rapidly changing stuff off of crates.io.