rfleming@testbed:~$ sudo apt -y dist-upgrade 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
  avahi-dnsconfd
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/13.8 kB of archives.
After this operation, 2,048 B disk space will be freed.
(Reading database ... 228125 files and directories currently installed.)
Preparing to unpack .../avahi-dnsconfd_0.6.32-1ubuntu1_amd64.deb ...
Job for avahi-daemon.socket canceled.
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
Job for avahi-daemon.socket canceled.
dpkg: error processing archive /var/cache/apt/archives/avahi-dnsconfd_0.6.32-1ubuntu1_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/avahi-dnsconfd_0.6.32-1ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)