Docker Hub Automated build failing on first RUN cmd

HI All,

I have the following repository which is failing automated builds from GItHub

Docker Hub
armhf-smokeping - Docker Hub

GitHub
armhf-smokeping - GitHub

Builds fail with the following error message

Build failed: The command ‘/bin/sh -c apt-get -y update’ returned a non-zero code: 1

This is regardless of what command is being executed.

Really stumped on this and its only my first full attempt at using and customizing my own Dockerfiles

Any help would be great!

EDIT: I think this is where I need to be investigating - Build ARM containers on x86

Regards

Matt