package etcd-server 3.2.26+dfsg-6ubuntu0.1 failed to install/upgrade: installed etcd-server package post-installation script subprocess returned error exit status 1

[jhe]

reported by system.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: etcd-server 3.2.26+dfsg-6ubuntu0.1
ProcVersionSignature: Ubuntu 5.4.0-126.142-generic 5.4.203
Uname: Linux 5.4.0-126-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
AptOrdering:
 python3-mako:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Oct 16 01:20:06 2022
DpkgHistoryLog:
 Start-Date: 2022-10-16 01:20:05
 Commandline: /usr/bin/unattended-upgrade
 Upgrade: python3-mako:amd64 (1.1.0+ds1-1ubuntu2, 1.1.0+ds1-1ubuntu2.1)
ErrorMessage: installed etcd-server package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2016-04-01 (2388 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3.2
 apt 2.0.9
SourcePackage: etcd
Title: package etcd-server 3.2.26+dfsg-6ubuntu0.1 failed to install/upgrade: installed etcd-server package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2022-09-16 (29 days ago)