package unattended-upgrades 0.90ubuntu0.8 failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)

[Dave Etter]

Fell into command execution loop.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: unattended-upgrades 0.90ubuntu0.8
ProcVersionSignature: Ubuntu 4.4.0-98.121-generic 4.4.90
Uname: Linux 4.4.0-98-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Tue Oct 17 12:16:36 2017
ErrorMessage: subprocess installed post-installation script was killed by signal (Terminated)
InstallationDate: Installed on 2015-07-31 (810 days ago)
InstallationMedia: It
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.25
SourcePackage: unattended-upgrades
Title: package unattended-upgrades 0.90ubuntu0.8 failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)
UpgradeStatus: Upgraded to xenial on 2017-10-17 (1 days ago)
modified.conffile..etc.apt.apt.conf.d.10periodic:
 APT::Periodic::Update-Package-Lists "7";
 APT::Periodic::Download-Upgradeable-Packages "1";
 APT::Periodic::AutocleanInterval "0";
 APT::Periodic::Unattended-Upgrade "0";
mtime.conffile..etc.apt.apt.conf.d.10periodic: 2015-08-04T07:41:06.559797

[Balint Reczey (rbalint)]

I'm sorry but I don't really see the loop in the attached logs. Could you please add some more hint?

[Launchpad Janitor (janitor)]

[Expired for unattended-upgrades (Ubuntu) because there has been no activity for 60 days.]