It seems that zuul is not taking BUILD_TIMEOUT into account anymore.
https://gerrit.wikimedia.org/r/#/c/operations/debs/trafficserver/+/493660/ times out after about 3 minutes (see for example https://integration.wikimedia.org/ci/job/debian-glue/1441/console). I would not expect that to happen given that we did set BUILD_TIMEOUT for trafficserver to 60: https://github.com/wikimedia/integration-config/blob/master/zuul/parameter_functions.py#L129