the new emerge sync log format looks like: 1431764402: Started emerge on: May 16, 2015 04:20:01 1431764402: *** emerge --quiet --keep-going --verbose --nospinner --oneshot --quiet-build=n --sync 1431764402: === sync 1431764402: >>> Syncing repository 'gentoo' into '/usr/portage'... 1431764402: >>> Starting rsync with rsync://[2a01:90:200:10::1a]/gentoo-portage 1431764460: === Sync completed for gentoo 1431764493: *** terminating. there's no information in there that ties these different entries together. if you run multiple syncs in parallel, there's no guarantee they won't be interleaved. suggest we make the output a little more rigid like: 1431764402: >>> gentoo: Syncing repository into '/usr/portage'... 1431764402: >>> gentoo: Starting rsync with rsync://[2a01:90:200:10::1a]/gentoo-portage 1431764460: === gentoo: Sync completed