2020-05-09 02:06:23,435 INFO Using config files '['./DistUpgrade.cfg.xenial']'
2020-05-09 02:06:23,436 INFO uname information: 'Linux deepti-TP300LA 4.4.0-179-generic #209-Ubuntu SMP Fri Apr 24 17:48:44 UTC 2020 x86_64'
2020-05-09 02:06:24,112 INFO apt version: '1.2.32'
2020-05-09 02:06:24,112 INFO python version: '3.5.2 (default, Apr 16 2020, 17:47:17) 
[GCC 5.4.0 20160609]'
2020-05-09 02:06:24,117 INFO release-upgrader version '18.04.36' started
2020-05-09 02:06:24,140 INFO locale: 'en_US' 'UTF-8'
2020-05-09 02:06:24,238 INFO screen could not be run
2020-05-09 02:06:25,397 DEBUG Using 'DistUpgradeViewText' view
2020-05-09 02:06:25,511 DEBUG enable dpkg --force-overwrite
2020-05-09 02:06:25,568 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2020-05-09 02:06:36,446 DEBUG lsb-release: 'xenial'
2020-05-09 02:06:36,447 DEBUG _pythonSymlinkCheck run
2020-05-09 02:06:36,485 DEBUG openCache()
2020-05-09 02:06:36,485 DEBUG No such plugin directory: ./plugins
2020-05-09 02:06:36,486 DEBUG plugins for condition 'PreCacheOpen' are '[]'
2020-05-09 02:06:36,486 DEBUG plugins for condition 'bionicPreCacheOpen' are '[]'
2020-05-09 02:06:36,486 DEBUG plugins for condition 'from_xenialPreCacheOpen' are '[]'
2020-05-09 02:06:36,486 DEBUG quirks: running PreCacheOpen
2020-05-09 02:06:36,486 DEBUG running Quirks.PreCacheOpen
2020-05-09 02:06:37,434 DEBUG /openCache(), new cache size 91275
2020-05-09 02:06:37,434 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2020-05-09 02:06:37,434 DEBUG checkViewDepends()
2020-05-09 02:06:37,455 DEBUG running doUpdate() (showErrors=False)
2020-05-09 02:06:46,108 DEBUG openCache()
2020-05-09 02:06:47,071 DEBUG /openCache(), new cache size 91275
2020-05-09 02:06:47,071 DEBUG doPostInitialUpdate
2020-05-09 02:06:47,071 DEBUG plugins for condition 'PostInitialUpdate' are '[]'
2020-05-09 02:06:47,072 DEBUG plugins for condition 'bionicPostInitialUpdate' are '[]'
2020-05-09 02:06:47,072 DEBUG plugins for condition 'from_xenialPostInitialUpdate' are '[]'
2020-05-09 02:06:47,072 DEBUG quirks: running bionicPostInitialUpdate
2020-05-09 02:06:47,072 DEBUG running Quirks.bionicPostInitialUpdate
2020-05-09 02:06:53,598 DEBUG MetaPkgs: ubuntu-desktop
2020-05-09 02:07:01,105 DEBUG Foreign: adobe-flash-properties-gtk adobe-flashplugin google-chrome-stable skypeforlinux slack-desktop
2020-05-09 02:07:01,105 DEBUG Obsolete: gcc-7-base gcc-9-base gcc-9-base:i386 indicator-stickynotes libseafile0 libsearpc1 master-pdf-editor rstudio seafile-daemon seafile-gui zoom
2020-05-09 02:07:01,106 DEBUG updateSourcesList()
2020-05-09 02:07:01,220 DEBUG rewriteSourcesList() with mirror_check
2020-05-09 02:07:01,220 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2020-05-09 02:07:01,220 DEBUG Checking pkg: ubuntu-minimal
2020-05-09 02:07:01,224 DEBUG Checking pkg: ubuntu-standard
2020-05-09 02:07:01,228 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial main restricted'
2020-05-09 02:07:01,228 DEBUG verifySourcesListEntry: deb http://de.archive.ubuntu.com/ubuntu/ bionic main restricted
2020-05-09 02:07:01,228 DEBUG url_downloadable: http://de.archive.ubuntu.com/ubuntu//dists/bionic/Release
2020-05-09 02:07:01,228 DEBUG s='http' n='de.archive.ubuntu.com' p='/ubuntu//dists/bionic/Release' q='' f=''
2020-05-09 02:07:01,853 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic main restricted' updated to new dist
2020-05-09 02:07:01,853 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial-updates main restricted'
2020-05-09 02:07:01,853 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic-updates main restricted' updated to new dist
2020-05-09 02:07:01,853 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial universe'
2020-05-09 02:07:01,854 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic universe' updated to new dist
2020-05-09 02:07:01,854 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial-updates universe'
2020-05-09 02:07:01,854 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic-updates universe' updated to new dist
2020-05-09 02:07:01,854 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial multiverse'
2020-05-09 02:07:01,855 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic multiverse' updated to new dist
2020-05-09 02:07:01,855 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial-updates multiverse'
2020-05-09 02:07:01,855 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic-updates multiverse' updated to new dist
2020-05-09 02:07:01,855 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse'
2020-05-09 02:07:01,855 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse' updated to new dist
2020-05-09 02:07:01,856 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu xenial-security main restricted'
2020-05-09 02:07:01,856 DEBUG verifySourcesListEntry: deb http://security.ubuntu.com/ubuntu bionic main restricted
2020-05-09 02:07:01,856 DEBUG url_downloadable: http://security.ubuntu.com/ubuntu/dists/bionic/Release
2020-05-09 02:07:01,856 DEBUG s='http' n='security.ubuntu.com' p='/ubuntu/dists/bionic/Release' q='' f=''
2020-05-09 02:07:02,451 DEBUG entry 'deb http://security.ubuntu.com/ubuntu bionic-security main restricted' updated to new dist
2020-05-09 02:07:02,452 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu xenial-security universe'
2020-05-09 02:07:02,452 DEBUG entry 'deb http://security.ubuntu.com/ubuntu bionic-security universe' updated to new dist
2020-05-09 02:07:02,453 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu xenial-security multiverse'
2020-05-09 02:07:02,453 DEBUG entry 'deb http://security.ubuntu.com/ubuntu bionic-security multiverse' updated to new dist
2020-05-09 02:07:02,453 DEBUG examining: 'deb http://archive.canonical.com/ xenial partner'
2020-05-09 02:07:02,454 DEBUG verifySourcesListEntry: deb http://archive.canonical.com/ bionic partner
2020-05-09 02:07:02,454 DEBUG url_downloadable: http://archive.canonical.com//dists/bionic/Release
2020-05-09 02:07:02,454 DEBUG s='http' n='archive.canonical.com' p='//dists/bionic/Release' q='' f=''
2020-05-09 02:07:03,119 DEBUG entry 'deb http://archive.canonical.com/ bionic partner' updated to new dist
2020-05-09 02:07:03,119 DEBUG examining: 'deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable'
2020-05-09 02:07:03,121 DEBUG entry '# deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable # disabled on upgrade to bionic' was disabled (unknown mirror)
2020-05-09 02:07:03,121 DEBUG examining: 'deb https://ftp.ussg.iu.edu/CRAN/bin/linux/ubuntu xenial/'
2020-05-09 02:07:03,123 DEBUG entry '# deb https://ftp.ussg.iu.edu/CRAN/bin/linux/ubuntu xenial/ # disabled on upgrade to bionic' was disabled (unknown mirror)
2020-05-09 02:07:03,123 DEBUG examining: 'deb http://de.archive.ubuntu.com/ubuntu/ xenial-proposed main multiverse universe restricted'
2020-05-09 02:07:03,123 DEBUG entry 'deb http://de.archive.ubuntu.com/ubuntu/ bionic-proposed main multiverse universe restricted' updated to new dist
2020-05-09 02:07:03,123 DEBUG examining: 'deb [arch=amd64] https://repo.skype.com/deb stable main'
2020-05-09 02:07:03,125 DEBUG entry '# deb [arch=amd64] https://repo.skype.com/deb stable main # disabled on upgrade to bionic' was disabled (unknown mirror)
2020-05-09 02:07:03,125 DEBUG examining: 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main'
2020-05-09 02:07:03,127 DEBUG entry '# deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main # disabled on upgrade to bionic' was disabled (unknown mirror)
2020-05-09 02:07:03,127 DEBUG examining: 'deb https://packagecloud.io/slacktechnologies/slack/debian/ jessie main'
2020-05-09 02:07:03,129 DEBUG entry '# deb https://packagecloud.io/slacktechnologies/slack/debian/ jessie main # disabled on upgrade to bionic' was disabled (unknown mirror)
2020-05-09 02:07:05,355 DEBUG running doUpdate() (showErrors=True)
2020-05-09 02:11:29,680 DEBUG openCache()
2020-05-09 02:11:30,727 DEBUG /openCache(), new cache size 97803
2020-05-09 02:11:30,727 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2020-05-09 02:11:31,820 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
2020-05-09 02:11:31,851 DEBUG abort called
2020-05-09 02:11:31,854 DEBUG openCache()
2020-05-09 02:11:51,746 DEBUG /openCache(), new cache size 91275