It looks like the unattended upgrade itself was successful, it's just that instead of the usual email showing me the upgrade log I get this traceback.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. https://bugs.launchpad.net/bugs/1554365 Title: UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 2886: ordinal not in range(128) Status in unattended-upgrades package in Ubuntu: Confirmed Bug description: I got this in the mail: From: Cron Daemon <root@...> To: root@... Subject: Cron <root@lims> test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Date: Thu, 25 Feb 2016 02:11:47 +0200 (EET) /etc/cron.daily/apt: Traceback (most recent call last): File "/usr/bin/unattended-upgrade", line 1255, in <module> main(options) File "/usr/bin/unattended-upgrade", line 1205, in main pkgs, pkg_install_success, pkgs_kept_back, mem_log, logfile_dpkg) File "/usr/bin/unattended-upgrade", line 752, in send_summary_mail body += fp.read() File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode return codecs.ascii_decode(input, self.errors)[0] UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 2886: ordinal not in range(128) According to /var/log/apt/history.log.1.gz, the packages upgraded that day were Start-Date: 2016-02-25 02:06:22 Upgrade: libgnutls-openssl27:amd64 (2.12.23-12ubuntu2.4, 2.12.23-12ubuntu2.5), libssl1.0.0:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17), libvirt0:amd64 (1.2.2-0ubuntu13.1.16, 1.2.2-0ubuntu13.1.17), libssl-dev:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17), ca-certificates:amd64 (20141019ubuntu0.14.04.1, 20160104ubuntu0.14.04.1), libgnutls26:amd64 (2.12.23-12ubuntu2.4, 2.12.23-12ubuntu2.5), libssl-doc:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17), openssl:amd64 (1.0.1f-1ubuntu2.16, 1.0.1f-1ubuntu2.17) End-Date: 2016-02-25 02:06:36 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unattended-upgrades 0.82.1ubuntu2.4 Uname: Linux 2.6.32-042stab108.8 x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 Date: Tue Mar 8 08:26:05 2016 PackageArchitecture: all ProcEnviron: LC_CTYPE=lt_LT.UTF-8 TERM=xterm-256color PATH=(custom, no user) LANG=lt_LT.UTF-8 SHELL=/bin/bash SourcePackage: unattended-upgrades UpgradeStatus: Upgraded to trusty on 2016-02-06 (30 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1554365/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp