The upstart script failed to restart job_aborter

chromeos-test@cros-full-0032:/etc/init$ ps -ef|grep [a]borter
chromeos-test@cros-full-0032:/etc/init$ cat job_aborter.conf
description "lucifer Autotest job aborter daemon"

start on runlevel [2345]
stop on runlevel [!2345]
console log
respawn
respawn limit 10 30
setuid "chromeos-test"

script
"/usr/local/autotest/bin/job_aborter" --jobdir "/usr/local/autotest/leases" 2>&1 \
     | "/opt/infra-tools/cloudtail" pipe \
       -service-account-json "/creds/service_accounts/lucifer-drone.json" \
       -resource-id job_aborter \
       -resource-type "cros-full-0032.mtv.corp.google.com"\
       -tee-to-stdout
end script

Please set -o pipefail, or exit the return code PIPESTATUS