Since yesterday we're getting large emails to root@ from boron for the wmf-auto-restart crontabs due lsof printing to stderr lsof: no pwd entry for UID 1234 thousands of times.
UID 1234 is the pbuilder ID and there is a build of the JDK packages that takes long time.
Given that the script is currently not checking stdout from lsof, as a quick bandaid I'll add an ignore to stderr when running lsof, and then we can add a better solution later.