A few entries per day are normal, a few dozens or hundreds probably not. Thu Nov 10 01:00:57 UTC 2016 - https://jenkins.debian.net/job/reproducible_builder_amd64_2/58734/console got remote error with exit code 143 from profitbricks-build5-amd64.debian.net for build #1 for libreoffice on unstable/amd64