Unfortunately, the feature is not yet ready in Travis, and the TravisCron guys did not yet activate my repo. After having a look at the TravisCron source code and the Travis API, I found out that it is really simple to do the same thing on my own.
That’s how I created daily-travis. It’s a tiny Rake task, ready to be pushed and automaticaly scheduled on heroku that will restart the latest build when run.
Details are in the README
@Travis : Thanks again for your service.