Both service scripts piped their output through 'tail -5' under
'pipefail', so the exit status came from tail, not the upgrade —
failures looked like success and nothing was sent to the classifier.
For PieFed the problem was worse: deploy.sh starts a service that no
longer exists and pybabel exits 1 on translation errors, so the strict
invocation aborted after stopping the services and left the site down.
Run it plainly (it manages fine without set -e, same as manually) and
judge success by the live service state plus an HTTP check instead of
the exit code.
A Mastodon update that fails now reports its real output and status.
