For some reason, installation is taking insanely long for Python 2
(10x Py3). NFC, but this bears further investication, given that it's just copying eggs, except pyc re-compilation to get correct path.

- Now wait up to 99 seconds for builds to complete.

- handle build timeout by printing output (rather than a failing
  assertion, now that we know it can happen).

- Got rid of the broken out() function.