Jenkins is great for in-house installs, but Travis is currently focused on testing open source projects in a distributed and live fashion. They are not competit

Jenkins is great for in-house installs, but Travis is currently focused on testing open source projects in a distributed and live fashion. They are not competitors as they are solving different issues. Testing open source in the open means other devs can get involved and help out when they see failures on particular setups. And you can even link to line numbers in the Travis logs, making it easier to point to the failure!