We should add testing to ensure install-buildtools works and also that it is up to date with the N-1 release and updates to new point releases.
Add Robert/Liezhi to CC. WR uses the buildtools more and more so we should have someone in Robert's group work on this bug.
Bulk move to 5.2-M3.
Bulk move to 5.2-M3 and this time I'll actually specify M3!