A few entries per day are normal, a few dozens or hundreds probably not. Sat Oct 10 20:03:33 UTC 2015 - https://jenkins.debian.net/job/reproducible_builder_amd64_7/6619/ got remote with exit code 1 from profitbricks-build5-amd64.debian.net for build #1 for libreoffice on unstable/amd64