Are you jealous of the badges that npm modules or rubygems have, showing off their latest published version? Of course you are. I was too. When looking at a repository, the version may change as code is merged in, before being published to crates.io. Now, instead of looking at a repo and wondering what version is latest, that repo can add a crates.io badge.
Besides wanting to be able to use badges like these for my own repositories, I also wanted a simple example of using hyper to create a simple app. Bonus points: it users the hyper Server and Client, together.
Go ahead, get your merit badge.