2021-03-22 18:24:00,790 INFO Using config files '['./DistUpgrade.cfg.bionic', '/etc/update-manager/release-upgrades.d/system76-third-party-mirrors.cfg']'
2021-03-22 18:24:00,790 INFO uname information: 'Linux AllansLaptop 5.3.0-7648-generic #41~1586790036~18.04~600aeb5~dev-Ubuntu SMP Mon Apr 13 17:49:24  x86_64'
2021-03-22 18:24:01,155 INFO apt version: '1.6.12ubuntu0.2'
2021-03-22 18:24:01,156 INFO python version: '3.6.9 (default, Jan 26 2021, 15:33:00) 
[GCC 8.4.0]'
2021-03-22 18:24:01,158 INFO release-upgrader version '20.04.29' started
2021-03-22 18:24:01,162 INFO locale: 'en_CA' 'UTF-8'
2021-03-22 18:24:01,226 DEBUG Using 'DistUpgradeViewText' view
2021-03-22 18:24:01,263 DEBUG enable dpkg --force-overwrite
2021-03-22 18:24:01,287 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2021-03-22 18:24:05,739 DEBUG lsb-release: 'bionic'
2021-03-22 18:24:05,739 DEBUG _pythonSymlinkCheck run
2021-03-22 18:24:05,740 DEBUG openCache()
2021-03-22 18:24:05,740 DEBUG quirks: running PreCacheOpen
2021-03-22 18:24:05,740 DEBUG running Quirks.PreCacheOpen
2021-03-22 18:24:06,713 DEBUG Comparing 5.3.0-7642 with 
2021-03-22 18:24:06,713 DEBUG Comparing 5.3.0-7648 with 5.3.0-7642
2021-03-22 18:24:06,968 DEBUG /openCache(), new cache size 102445
2021-03-22 18:24:06,968 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2021-03-22 18:24:06,968 DEBUG checkViewDepends()
2021-03-22 18:24:06,969 DEBUG running doUpdate() (showErrors=False)
2021-03-22 18:24:08,048 DEBUG openCache()
2021-03-22 18:24:08,967 DEBUG Comparing 5.3.0-7642 with 
2021-03-22 18:24:08,967 DEBUG Comparing 5.3.0-7648 with 5.3.0-7642
2021-03-22 18:24:09,180 DEBUG /openCache(), new cache size 102445
2021-03-22 18:24:09,181 DEBUG doPostInitialUpdate
2021-03-22 18:24:09,181 DEBUG quirks: running focalPostInitialUpdate
2021-03-22 18:24:09,181 DEBUG running Quirks.focalPostInitialUpdate
2021-03-22 18:24:11,212 DEBUG Snap core18 is installed
2021-03-22 18:24:11,442 DEBUG Snap gnome-3-34-1804 is installed
2021-03-22 18:24:11,444 DEBUG Snap gnome-3-34-1804 is not tracking the release channel
2021-03-22 18:24:11,690 DEBUG Snap gtk-common-themes is installed
2021-03-22 18:24:12,516 DEBUG Snap gnome-3-28-1804 is installed
2021-03-22 18:24:12,516 DEBUG Snap gnome-3-28-1804 is not tracking the release channel
2021-03-22 18:24:12,779 DEBUG Snap gnome-calculator is installed
2021-03-22 18:24:13,099 DEBUG Snap gnome-characters is installed
2021-03-22 18:24:13,685 DEBUG Snap gnome-logs is installed
2021-03-22 18:24:15,943 DEBUG MetaPkgs: ubuntu-desktop
2021-03-22 18:24:19,863 DEBUG Foreign: 
2021-03-22 18:24:19,863 DEBUG Obsolete: adobereader-enu:i386 dbeaver-ce firmware-manager firmware-manager-notify firmware-manager-shared gnome-shell-extension-system76-power hidpi-daemon libegl-dev libgl-dev libgles-dev libglx-dev libnm-gtk-common libnma-common libopengl-dev linux-headers-5.3.0-7642 linux-headers-5.3.0-7642-generic linux-headers-5.3.0-7648 linux-headers-5.3.0-7648-generic linux-image-5.3.0-7642-generic linux-image-5.3.0-7648-generic linux-modules-5.3.0-7642-generic linux-modules-5.3.0-7648-generic linux-modules-extra-5.3.0-7642-generic linux-modules-extra-5.3.0-7648-generic linux-system76 system76-acpi-dkms system76-dkms system76-driver system76-firmware-daemon system76-io-dkms system76-oled system76-power system76-wallpapers zoom
2021-03-22 18:24:19,863 DEBUG updateSourcesList()
2021-03-22 18:24:19,870 DEBUG rewriteSourcesList() with mirror_check
2021-03-22 18:24:19,870 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2021-03-22 18:24:19,871 DEBUG Checking pkg: ubuntu-minimal
2021-03-22 18:24:19,872 DEBUG Checking pkg: ubuntu-standard
2021-03-22 18:24:19,875 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic main restricted'
2021-03-22 18:24:19,875 DEBUG verifySourcesListEntry: deb http://ca.archive.ubuntu.com/ubuntu/ focal main restricted
2021-03-22 18:24:19,875 DEBUG url_downloadable: http://ca.archive.ubuntu.com/ubuntu//dists/focal/Release
2021-03-22 18:24:19,875 DEBUG s='http' n='ca.archive.ubuntu.com' p='/ubuntu//dists/focal/Release' q='' f=''
2021-03-22 18:24:19,956 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal main restricted' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic-updates main restricted'
2021-03-22 18:24:19,957 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal-updates main restricted' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic universe'
2021-03-22 18:24:19,957 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal universe' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic-updates universe'
2021-03-22 18:24:19,957 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal-updates universe' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic multiverse'
2021-03-22 18:24:19,957 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal multiverse' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic-updates multiverse'
2021-03-22 18:24:19,957 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal-updates multiverse' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse'
2021-03-22 18:24:19,957 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse' updated to new dist
2021-03-22 18:24:19,957 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu bionic-security main restricted'
2021-03-22 18:24:19,958 DEBUG verifySourcesListEntry: deb http://security.ubuntu.com/ubuntu focal main restricted
2021-03-22 18:24:19,958 DEBUG url_downloadable: http://security.ubuntu.com/ubuntu/dists/focal/Release
2021-03-22 18:24:19,958 DEBUG s='http' n='security.ubuntu.com' p='/ubuntu/dists/focal/Release' q='' f=''
2021-03-22 18:24:20,166 DEBUG entry 'deb http://security.ubuntu.com/ubuntu focal-security main restricted' updated to new dist
2021-03-22 18:24:20,166 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu bionic-security universe'
2021-03-22 18:24:20,166 DEBUG entry 'deb http://security.ubuntu.com/ubuntu focal-security universe' updated to new dist
2021-03-22 18:24:20,166 DEBUG examining: 'deb http://security.ubuntu.com/ubuntu bionic-security multiverse'
2021-03-22 18:24:20,166 DEBUG entry 'deb http://security.ubuntu.com/ubuntu focal-security multiverse' updated to new dist
2021-03-22 18:24:20,205 DEBUG running doUpdate() (showErrors=True)
2021-03-22 18:24:24,178 DEBUG openCache()
2021-03-22 18:24:24,856 DEBUG Comparing 5.3.0-7642 with 
2021-03-22 18:24:24,856 DEBUG Comparing 5.3.0-7648 with 5.3.0-7642
2021-03-22 18:24:25,005 DEBUG /openCache(), new cache size 68410
2021-03-22 18:24:25,005 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2021-03-22 18:24:25,005 DEBUG quirks: running PreDistUpgradeCache
2021-03-22 18:24:25,005 DEBUG running Quirks.PreDistUpgradeCache
2021-03-22 18:24:25,006 INFO checking for python-dbg
2021-03-22 18:24:25,006 INFO checking for python-doc
2021-03-22 18:24:25,006 INFO checking for python-minimal
2021-03-22 18:24:25,006 INFO installing python-is-python2 because python-minimal was installed
2021-03-22 18:24:25,006 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
2021-03-22 18:24:25,151 INFO removing python-minimal because python-is-python2 is being installed
2021-03-22 18:24:25,151 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
2021-03-22 18:24:25,151 INFO failed to remove python-minimal
2021-03-22 18:24:25,151 INFO checking for python-dev
2021-03-22 18:24:25,151 INFO installing python-dev-is-python2 because python-dev was installed
2021-03-22 18:24:25,151 DEBUG Installing 'python-dev-is-python2' (python-dev was installed on the system)
2021-03-22 18:24:25,190 INFO removing python-dev because python-dev-is-python2 is being installed
2021-03-22 18:24:25,191 DEBUG Removing 'python-dev' (python-dev-is-python2 is being installed on the system)
2021-03-22 18:24:25,191 INFO failed to remove python-dev
2021-03-22 18:24:25,191 INFO checking for libpython-dev
2021-03-22 18:24:25,191 INFO removing libpython-dev because None is being installed
2021-03-22 18:24:25,191 DEBUG Removing 'libpython-dev' (None is being installed on the system)
2021-03-22 18:24:25,191 INFO failed to remove libpython-dev
2021-03-22 18:24:25,191 INFO checking for libpython-stdlib
2021-03-22 18:24:25,191 INFO removing libpython-stdlib because None is being installed
2021-03-22 18:24:25,191 DEBUG Removing 'libpython-stdlib' (None is being installed on the system)
2021-03-22 18:24:25,191 INFO failed to remove libpython-stdlib
2021-03-22 18:24:25,191 INFO checking for libpython-dbg
2021-03-22 18:24:26,531 DEBUG Installing 'xserver-xorg-video-all' (Distro KeepInstalledPkgs rule)
2021-03-22 18:24:26,735 ERROR Dist-upgrade failed: 'E:Unable to correct problems, you have held broken packages.'
2021-03-22 18:24:26,737 DEBUG abort called
2021-03-22 18:24:26,737 DEBUG openCache()
2021-03-22 18:24:29,191 DEBUG Comparing 5.3.0-7642 with 
2021-03-22 18:24:29,191 DEBUG Comparing 5.3.0-7648 with 5.3.0-7642
2021-03-22 18:24:29,410 DEBUG /openCache(), new cache size 102445