do-release-upgrade fails

[Wolfgang Betz]

This is the execution trace/stdout:

2015-10-23 09:00:48,487 INFO Using config files '['./DistUpgrade.cfg']'
2015-10-23 09:00:48,487 INFO uname information: 'Linux agr011510 3.16.0-44-generic #59-Ubuntu SMP Tue Jul 7 02:07:39 UTC 2015 x86_64'
2015-10-23 09:00:48,487 INFO apt version: '1.0.9.2ubuntu2'
2015-10-23 09:00:48,488 INFO python version: '3.4.2 (default, Jun 19 2015, 11:34:49)
[GCC 4.9.1]'
2015-10-23 09:00:48,488 INFO release-upgrader version '15.04.14.2' started
2015-10-23 09:00:48,490 INFO locale: 'en_US' 'UTF-8'
2015-10-23 09:00:48,557 DEBUG Using 'DistUpgradeViewText' view
2015-10-23 09:00:48,598 DEBUG aufsOptionsAndEnvironmentSetup()
2015-10-23 09:00:48,599 DEBUG using '/tmp/upgrade-rw-fdsh9sxd' as aufs_rw_dir
2015-10-23 09:00:48,599 DEBUG using '/tmp/upgrade-chroot-8lw7cl8r' as aufs chroot dir
2015-10-23 09:00:48,599 DEBUG enable dpkg --force-overwrite
2015-10-23 09:00:48,604 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
2015-10-23 09:00:48,984 DEBUG lsb-release: 'utopic'
2015-10-23 09:00:48,985 DEBUG _pythonSymlinkCheck run
2015-10-23 09:00:48,985 DEBUG openCache()
2015-10-23 09:00:48,986 DEBUG No such plugin directory: ./plugins
2015-10-23 09:00:48,986 DEBUG plugins for condition 'PreCacheOpen' are '[]'
2015-10-23 09:00:48,986 DEBUG plugins for condition 'vividPreCacheOpen' are '[]'
2015-10-23 09:00:48,986 DEBUG plugins for condition 'from_utopicPreCacheOpen' are '[]'
2015-10-23 09:00:48,986 DEBUG quirks: running PreCacheOpen
2015-10-23 09:00:48,986 DEBUG running Quirks.PreCacheOpen
2015-10-23 09:00:49,111 DEBUG /openCache(), new cache size 3966
2015-10-23 09:00:49,111 DEBUG need_server_mode(): can not find a desktop meta package or key deps, running in server mode
2015-10-23 09:00:49,112 DEBUG checkViewDepends()
2015-10-23 09:00:49,112 DEBUG running doUpdate() (showErrors=False)
2015-10-23 09:01:16,308 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://ppa.launchpad.net/crebs/ppa/ubuntu/dists/oneiric/main/source/Sources 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/universe/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/multiverse/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/main/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/restricted/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/universe/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/multiverse/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/main/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/restricted/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/main/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/universe/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/restricted/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/multiverse/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/main/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/universe/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/restricted/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic/multiverse/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/universe/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/multiverse/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/main/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/restricted/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/universe/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/multiverse/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/main/binary-i386/Packages 404 Not Found
, W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/utopic-updates/restricted/binary-i386/Packages 404 Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 0)
2015-10-23 09:01:16,309 ERROR doUpdate() failed completely
2015-10-23 09:01:16,309 DEBUG openCache()
2015-10-23 09:01:16,436 DEBUG /openCache(), new cache size 3966
2015-10-23 09:01:16,436 DEBUG doPostInitialUpdate
2015-10-23 09:01:16,436 DEBUG plugins for condition 'PostInitialUpdate' are '[]'
2015-10-23 09:01:16,436 DEBUG plugins for condition 'vividPostInitialUpdate' are '[]'
2015-10-23 09:01:16,436 DEBUG plugins for condition 'from_utopicPostInitialUpdate' are '[]'
2015-10-23 09:01:16,566 DEBUG no PkgRecord found for 'account-plugin-generic-oauth', skipping
2015-10-23 09:01:16,567 DEBUG no PkgRecord found for 'account-plugin-windows-live', skipping
2015-10-23 09:01:16,567 DEBUG no PkgRecord found for 'aisleriot', skipping
2015-10-23 09:01:16,568 DEBUG no PkgRecord found for 'anthy', skipping
2015-10-23 09:01:16,568 DEBUG no PkgRecord found for 'anthy-common', skipping
2015-10-23 09:01:16,568 DEBUG no PkgRecord found for 'apache2.2-common', skipping
2015-10-23 09:01:16,568 DEBUG no PkgRecord found for 'appmenu-gtk', skipping
2015-10-23 09:01:16,568 DEBUG no PkgRecord found for 'appmenu-gtk3', skipping
2015-10-23 09:01:16,569 DEBUG no PkgRecord found for 'at-spi', skipping
2015-10-23 09:01:16,569 DEBUG no PkgRecord found for 'avrdude', skipping
2015-10-23 09:01:16,569 DEBUG no PkgRecord found for 'banshee', skipping
2015-10-23 09:01:16,570 DEBUG no PkgRecord found for 'bridge-utils', skipping
2015-10-23 09:01:16,570 DEBUG no PkgRecord found for 'brltty-x11', skipping
2015-10-23 09:01:16,571 DEBUG no PkgRecord found for 'capplets-data', skipping
2015-10-23 09:01:16,571 DEBUG no PkgRecord found for 'cgroup-lite', skipping
2015-10-23 09:01:16,571 DEBUG no PkgRecord found for 'checkbox-gtk', skipping
2015-10-23 09:01:16,571 DEBUG no PkgRecord found for 'chromium-browser', skipping
2015-10-23 09:01:16,571 DEBUG no PkgRecord found for 'classicmenu-indicator', skipping
2015-10-23 09:01:16,572 DEBUG no PkgRecord found for 'compiz', skipping
2015-10-23 09:01:16,572 DEBUG no PkgRecord found for 'compiz-gnome', skipping
2015-10-23 09:01:16,572 DEBUG no PkgRecord found for 'computer-janitor', skipping
2015-10-23 09:01:16,573 ERROR not handled exception:
Traceback (most recent call last):

  File "/tmp/ubuntu-release-upgrader-5gpr7hzc/vivid", line 8, in <module>
    sys.exit(main())

  File "/tmp/ubuntu-release-upgrader-5gpr7hzc/DistUpgrade/DistUpgradeMain.py", line 240, in main
    if app.run():

  File "/tmp/ubuntu-release-upgrader-5gpr7hzc/DistUpgrade/DistUpgradeController.py", line 1831, in run
    return self.fullUpgrade()

  File "/tmp/ubuntu-release-upgrader-5gpr7hzc/DistUpgrade/DistUpgradeController.py", line 1712, in fullUpgrade
    if not self.doPostInitialUpdate():

  File "/tmp/ubuntu-release-upgrader-5gpr7hzc/DistUpgrade/DistUpgradeController.py", line 898, in doPostInitialUpdate
    self.tasks = self.cache.installedTasks

  File "/tmp/ubuntu-release-upgrader-5gpr7hzc/DistUpgrade/DistUpgradeCache.py", line 778, in installedTasks
    for line in pkg._pcache._records.record.split("\n"):

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xeb in position 114: invalid continuation byte

2015-10-23 09:01:16,574 DEBUG running apport_crash()
2015-10-23 09:01:17,965 DEBUG enabling apt cron job