Please allow --privileged flag to build multiarch docker images. According to this article, it is possible with Github + Travis : http://blog.hypriot.com/post/setup-simple-ci-pipeline-for-arm-images/
Register qemu-*-static for all supported processors except the current one docker run --rm --privileged multiarch/qemu-user-static:register
Currently, the following error is return when running the pipeline: + docker run --rm --privileged multiarch/qemu-user-static:register --reset docker: Error response from daemon: authorization denied by plugin pipelines: Command not supported. See 'docker run --help'.