We have a ton of /tmp/SDK* directories building up in tmp after builds. We need to track down the cause (go SDK tests?) and fix whatever it is to clean up after itself.
Code is in meta/lib/oeqa/selftest/cases/gotoolchain.py I think the issue is that files which are readonly are created. We'll have to chmod them before deletion.
http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=4252b898656ff71e373f0550522f4dcc2ec5c355