rust-lang/rust — pull request #17802 by Gankro (2014-10-05 17:51:57+00:00)
Title: library-level docs for collections

Adds a high-level discussion of "what collection should you use for what", as well as some general discussion of correct/efficient usage of the capacity, iterator, and entry APIs.

Still building docs to confirm this renders right and the examples are good, but the content can be reviewed now.