package docker.io 20.10.2-0ubuntu1~20.04.3 failed to install/upgrade: new docker.io package pre-installation script subprocess returned error exit status 1

[Rob]

The process was automatic, and merely reported to me that it failed.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: docker.io 20.10.2-0ubuntu1~20.04.3
ProcVersionSignature: Ubuntu 5.4.0-80.90-generic 5.4.124
Uname: Linux 5.4.0-80-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
AptOrdering:
 docker.io:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Aug 6 06:47:53 2021
ErrorMessage: new docker.io package pre-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2016-06-11 (1881 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
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
 apt 2.0.6
SourcePackage: docker.io
Title: package docker.io 20.10.2-0ubuntu1~20.04.3 failed to install/upgrade: new docker.io package pre-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2020-10-03 (307 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.