For Running Android device tests,
The arm emulator is notoriously slow. Even the newer and faster emulator being released by Google only target x86 requiring HAXM on Mac/Windows and KVM on linux.
Is it possible to provide KVM by default on the containers?
* Faster device tests
* taking screenshots
* faking emulator data like sending of SMS, calling etc.
Travis-Ci already has support for x86 images.