This is phusion/baseimage built for armhf devices (i.e. ARMv7+).
On your armhf machine, tag it like this:
docker pull armhfbuild/phusion-baseimage docker tag armhfbuild/phusion-baseimage:0.9.16 phusion/baseimage:0.9.16
Now you should be able to use x86 images from the registry which are using it as a base image.
Note: This image was built upon the armhf-ubuntu base image.