I sent an email to Floris Bruynooghe, owner of the buildbot:

Hi,

I noticed "Timeout (1:00:00)!" errors on your buildbot "SPARC Solaris
10 OpenCSW 3.x". It looks like the buildbot takes 10 hour for one
build, whereas my PC takes less than 10 minutes (especially when tests
are run in parallel). I don't really care of performances, but more on
the result.

Could you please modify the timeout, for example to set it to 2 hours?

The "test" step of buildbot uses this command:

 argv: ['make', 'buildbottest', 'TESTOPTS=', 'TESTPYTHONOPTS=',
'TESTTIMEOUT=3600']

Replace 3600 with 7200 (seconds = 2 hours).

Related Python issue:
http://bugs.python.org/issue20671

Thanks,
Victor Stinner aka haypo