Comment 3 for bug 1881504

This continues to be an issue and one which I ran into recently:

runner/autopkgtest --setup-commands="dpkg --add-architecture i386; apt-get update" --architecture i386 gzip -- qemu --ram-size=4096 --cpus=4 /srv/vms/autopkgtest-lunar-amd64.img
...
Broken gzip:amd64 Conflicts on gzip:i386 < none -> 1.12-1ubuntu1 @un puN Ib >
  Considering gzip:i386 5103 as a solution to gzip:amd64 5103
  Removing gzip:amd64 rather than change gzip:i386
Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 gzip : Conflicts: gzip:i386 but 1.12-1ubuntu1 is to be installed
 gzip:i386 : Conflicts: gzip but 1.12-1ubuntu1 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
simple-gzip FAIL badpkg
blame: gzip
badpkg: Test dependencies are unsatisfiable. A common reason is that your testbed is out of date with respect to the archive, and you need to use a current testbed or run apt-get update or use -U.
autopkgtest [14:05:26]: @@@@@@@@@@@@@@@@@@@@ summary
simple-gzip FAIL badpkg
blame: gzip
badpkg: Test dependencies are unsatisfiable. A common reason is that your testbed is out of date with respect to the archive, and you need to use a current testbed or run apt-get update or use -U.
qemu-system-x86_64: terminating on signal 15 from pid 1828712 (/usr/bin/python3)