2021-05-05 18:06:44,105 INFO Using config files '['./DistUpgrade.cfg.bionic']'
2021-05-05 18:06:44,105 INFO uname information: 'Linux docker-test.molienergy.com 4.15.0-142-generic #146-Ubuntu SMP Tue Apr 13 01:11:19 UTC 2021 x86_64'
2021-05-05 18:06:44,395 INFO apt version: '1.6.13'
2021-05-05 18:06:44,396 INFO python version: '3.6.9 (default, Jan 26 2021, 15:33:00) 
[GCC 8.4.0]'
2021-05-05 18:06:44,398 INFO release-upgrader version '20.04.32' started
2021-05-05 18:06:44,406 INFO locale: 'en_US' 'UTF-8'
2021-05-05 18:06:44,470 DEBUG Using 'DistUpgradeViewText' view
2021-05-05 18:06:44,525 DEBUG enable dpkg --force-overwrite
2021-05-05 18:06:44,554 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2021-05-05 18:06:46,493 DEBUG lsb-release: 'bionic'
2021-05-05 18:06:46,494 DEBUG _pythonSymlinkCheck run
2021-05-05 18:06:46,495 DEBUG openCache()
2021-05-05 18:06:46,495 DEBUG quirks: running PreCacheOpen
2021-05-05 18:06:46,495 DEBUG running Quirks.PreCacheOpen
2021-05-05 18:06:47,348 DEBUG Comparing 4.15.0-142 with 
2021-05-05 18:06:47,604 DEBUG /openCache(), new cache size 71156
2021-05-05 18:06:47,605 DEBUG need_server_mode(): can not find a desktop meta package or key deps, running in server mode
2021-05-05 18:06:47,605 DEBUG checkViewDepends()
2021-05-05 18:06:47,607 DEBUG running doUpdate() (showErrors=False)
2021-05-05 18:06:49,740 DEBUG openCache()
2021-05-05 18:06:50,582 DEBUG Comparing 4.15.0-142 with 
2021-05-05 18:06:50,842 DEBUG /openCache(), new cache size 71156
2021-05-05 18:06:50,842 DEBUG doPostInitialUpdate
2021-05-05 18:06:50,842 DEBUG quirks: running focalPostInitialUpdate
2021-05-05 18:06:50,842 DEBUG running Quirks.focalPostInitialUpdate
2021-05-05 18:06:53,016 WARNING error reading deb2snap.json file (Expected a string or a pair of strings)
2021-05-05 18:06:53,324 DEBUG Snap core is installed
2021-05-05 18:06:53,325 DEBUG Snap core is not tracking the release channel
2021-05-05 18:06:55,222 DEBUG MetaPkgs: 
2021-05-05 18:06:58,449 DEBUG Foreign: containerd.io
2021-05-05 18:06:58,449 DEBUG Obsolete: 
2021-05-05 18:06:58,450 DEBUG updateSourcesList()
2021-05-05 18:06:58,484 DEBUG rewriteSourcesList() with mirror_check
2021-05-05 18:06:58,484 DEBUG ['ubuntu-minimal', 'ubuntu-standard']
2021-05-05 18:06:58,484 DEBUG Checking pkg: ubuntu-minimal
2021-05-05 18:06:58,487 DEBUG Checking pkg: ubuntu-standard
2021-05-05 18:06:58,489 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic main restricted'
2021-05-05 18:06:58,489 DEBUG verifySourcesListEntry: deb http://ca.archive.ubuntu.com/ubuntu focal main restricted
2021-05-05 18:06:58,489 DEBUG url_downloadable: http://ca.archive.ubuntu.com/ubuntu/dists/focal/Release
2021-05-05 18:06:58,489 DEBUG s='http' n='ca.archive.ubuntu.com' p='/ubuntu/dists/focal/Release' q='' f=''
2021-05-05 18:06:58,638 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal main restricted' updated to new dist
2021-05-05 18:06:58,639 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-updates main restricted'
2021-05-05 18:06:58,639 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-updates main restricted' updated to new dist
2021-05-05 18:06:58,639 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic universe'
2021-05-05 18:06:58,639 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal universe' updated to new dist
2021-05-05 18:06:58,639 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-updates universe'
2021-05-05 18:06:58,639 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-updates universe' updated to new dist
2021-05-05 18:06:58,639 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic multiverse'
2021-05-05 18:06:58,639 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal multiverse' updated to new dist
2021-05-05 18:06:58,639 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-updates multiverse'
2021-05-05 18:06:58,639 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-updates multiverse' updated to new dist
2021-05-05 18:06:58,639 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse'
2021-05-05 18:06:58,640 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse' updated to new dist
2021-05-05 18:06:58,640 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-security main restricted'
2021-05-05 18:06:58,640 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-security main restricted' updated to new dist
2021-05-05 18:06:58,640 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-security universe'
2021-05-05 18:06:58,640 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-security universe' updated to new dist
2021-05-05 18:06:58,640 DEBUG examining: 'deb http://ca.archive.ubuntu.com/ubuntu bionic-security multiverse'
2021-05-05 18:06:58,640 DEBUG entry 'deb http://ca.archive.ubuntu.com/ubuntu focal-security multiverse' updated to new dist
2021-05-05 18:06:58,690 DEBUG running doUpdate() (showErrors=True)
2021-05-05 18:07:02,472 DEBUG openCache()
2021-05-05 18:07:03,263 DEBUG Comparing 4.15.0-142 with 
2021-05-05 18:07:03,476 DEBUG /openCache(), new cache size 63618
2021-05-05 18:07:03,477 DEBUG need_server_mode(): can not find a desktop meta package or key deps, running in server mode
2021-05-05 18:07:03,478 DEBUG quirks: running PreDistUpgradeCache
2021-05-05 18:07:03,479 DEBUG running Quirks.PreDistUpgradeCache
2021-05-05 18:07:03,479 INFO checking for python-dbg (auto_inst=False)
2021-05-05 18:07:03,479 INFO checking for python-doc (auto_inst=False)
2021-05-05 18:07:03,479 INFO checking for python-minimal (auto_inst=False)
2021-05-05 18:07:03,479 INFO installing python-is-python2 because python-minimal was installed
2021-05-05 18:07:03,479 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
2021-05-05 18:07:03,496 INFO removing python-minimal because python-is-python2 is being installed
2021-05-05 18:07:03,496 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
2021-05-05 18:07:03,510 INFO failed to remove python-minimal
2021-05-05 18:07:03,512 INFO checking for python-dev (auto_inst=False)
2021-05-05 18:07:03,512 INFO checking for libpython-dev (auto_inst=False)
2021-05-05 18:07:03,512 INFO checking for libpython-stdlib (auto_inst=False)
2021-05-05 18:07:03,512 INFO removing libpython-stdlib because None is being installed
2021-05-05 18:07:03,512 DEBUG Removing 'libpython-stdlib' (None is being installed on the system)
2021-05-05 18:07:03,530 INFO failed to remove libpython-stdlib
2021-05-05 18:07:03,530 INFO checking for libpython-dbg (auto_inst=False)
2021-05-05 18:07:03,530 INFO checking for python-dbg (auto_inst=True)
2021-05-05 18:07:03,530 INFO checking for python-doc (auto_inst=True)
2021-05-05 18:07:03,530 INFO checking for python-minimal (auto_inst=True)
2021-05-05 18:07:03,530 INFO installing python-is-python2 because python-minimal was installed
2021-05-05 18:07:03,530 DEBUG Installing 'python-is-python2' (python-minimal was installed on the system)
2021-05-05 18:07:03,544 INFO removing python-minimal because python-is-python2 is being installed
2021-05-05 18:07:03,544 DEBUG Removing 'python-minimal' (python-is-python2 is being installed on the system)
2021-05-05 18:07:03,544 INFO failed to remove python-minimal
2021-05-05 18:07:03,544 INFO checking for python-dev (auto_inst=True)
2021-05-05 18:07:03,544 INFO checking for libpython-dev (auto_inst=True)
2021-05-05 18:07:03,544 INFO checking for libpython-stdlib (auto_inst=True)
2021-05-05 18:07:03,544 INFO removing libpython-stdlib because None is being installed
2021-05-05 18:07:03,544 DEBUG Removing 'libpython-stdlib' (None is being installed on the system)
2021-05-05 18:07:03,545 INFO failed to remove libpython-stdlib
2021-05-05 18:07:03,545 INFO checking for libpython-dbg (auto_inst=True)
2021-05-05 18:07:03,835 ERROR Dist-upgrade failed: 'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'
2021-05-05 18:07:03,836 DEBUG abort called
2021-05-05 18:07:03,837 DEBUG openCache()
2021-05-05 18:07:06,022 DEBUG Comparing 4.15.0-142 with 
2021-05-05 18:07:06,276 DEBUG /openCache(), new cache size 71156