package distcc 3.3.2-7 failed to install/upgrade: dependency problems - leaving triggers unprocessed

[gahabana]

upgrade from 19.04 failed with these messsages (see log)

ProblemType: Package
DistroRelease: Ubuntu 19.10
Package: distcc 3.3.2-7
ProcVersionSignature: Ubuntu 5.0.0-31.33-generic 5.0.21
Uname: Linux 5.0.0-31-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
Date: Wed Oct 23 17:36:03 2019
ErrorMessage: dependency problems - leaving triggers unprocessed
InstallationDate: Installed on 2017-03-30 (936 days ago)
InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.8)
Python3Details: /usr/bin/python3.7, Python 3.7.5rc1, python3-minimal, 3.7.5-1
PythonDetails: /usr/bin/python2.7, Python 2.7.16, python-minimal, 2.7.16-1
RelatedPackageVersions:
 dpkg 1.19.7ubuntu2
 apt 1.8.3
SourcePackage: distcc
Title: package distcc 3.3.2-7 failed to install/upgrade: dependency problems - leaving triggers unprocessed
UpgradeStatus: Upgraded to eoan on 2019-10-23 (0 days ago)

[Launchpad Janitor (janitor)]

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