[PATCH 1 of 2] rust: published the three extension crates to crates.io

[Augie Fackler]

> On Apr 16, 2019, at 17:12, Georges Racinet <georges.racinet at octobus.net> wrote:
> 
> Of course I'm all willing to give ownership on these crates to the
> project, but that requires a GitHub Organization (only for
> authentication). Reference: (ref:
> https://doc.rust-lang.org/cargo/reference/publishing.html#cargo-owner).
> I don't feel like I should be the one to create one out of the blue, but
> I could and would invite the whole steering committee if I did.

https://github.com/mercurial-scm is now a thing, and I've sent you an invitation. I ticked the box to require two-factor auth for all org members, hopefully that doesn't make life difficult.