Comment 1 for bug 1175132

This issue re-produced on panda build=30

https://ci.linaro.org/jenkins/job/linux-next/hwpack=panda,label=precise_hwpack_cloud/30/console

01:31:55 ++ python lci-build-tools/get_latest_slo_hwpack
01:31:55 Traceback (most recent call last):
01:31:55 File "lci-build-tools/get_latest_slo_hwpack", line 16, in <module>
01:31:55 hwpack_url = find_latest_hwpack(hwpack_type)
01:31:55 File "/mnt/ci_build/workspace/linux-next/hwpack/panda/label/precise_hwpack_cloud/lci-build-tools/find_latest.py", line 96, in find_latest_hwpack
01:31:55 filename = find_latest(hwpack_url)
01:31:55 File "/mnt/ci_build/workspace/linux-next/hwpack/panda/label/precise_hwpack_cloud/lci-build-tools/find_latest.py", line 72, in find_latest
01:31:55 lastdate = dates.pop()
01:31:55 IndexError: pop from empty list