Experiment: Linux tests in Taskcluster

[oskirby]

Description

Danger! Everything is probably broken!

Amazingly, this works! However, it places a fairly heavy burden on our Taskcluster workers as we attempt to spin up 50-ish worker VMs simultaneously to run the tests. Which might make this unsuitable to run on a frequent basis.

Reference

i.e Jira or Github issue URL

Checklist

• My code follows the style guidelines for this project
• I have not added any packages that contain high risk or unknown licenses (GPL, LGPL, MPL, etc. consult with DevOps if in question)
• I have performed a self review of my own code
• I have commented my code PARTICULARLY in hard to understand areas
• I have added thorough tests where needed