Comment 9 for bug 1279875

The most recent version of the mir-android build took 11 minutes:
https://jenkins.qa.ubuntu.com/job/mir-android-trusty-i386-build/914/

But this lead me to look for the 'saucy' version for the other jobs and I found a comparison:

https://jenkins.qa.ubuntu.com/job/mir-saucy-armhf-ci/103/ == 30 minutes
https://jenkins.qa.ubuntu.com/job/mir-trusty-armhf-ci/35/ == 94 minutes

So there is data to support these builds used to take a *lot* less time.

Exploring alternative compilation methods such as distcc is completely out of scope at this time. Ccache might be a little more attainable as we've used it in the past. There may be something off in the trusty pbuilders, it's possible the slowness started with that transistion. That's something I can try to investigate.