[Pkg-rust-maintainers] Rust versions and the coming freeze for Stretch

[Steve Klabnik]

What I meant was, you wouldn't need to actually start on Feb 2; given
that beta is an RC for stable, you could put the package together for
it before the day that we actually release our own package for it.

Anyway, that's the last I'll say of it; I just _really_ don't want to
end up having to tell people "no, please uninstall rustc through apt
because it's too old", which I fear is gonna happen a lot. That might
be unfounded. We'll see...