RFC: https://gist.github.com/nikomatsakis/9272598 (Same as [this blog post](http://smallcultfollowing.com/babysteps/blog/2014/02/25/rust-rfc-stronger-guarantees-for-mutable-borrows/))
RFC: https://gist.github.com/nikomatsakis/9272598
(Same as this blog post)