Build tests failing with core dump

[MattRose]

I've submitted a new Terminator package that seems to not be able to be
built on the launchpad build servers
https://launchpad.net/~mattrose/+archive/ubuntu/terminator/+build/24844261

relevant snippet from the build logs

xvfb-run dh_auto_test
I: pybuild base:239: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.10/build;
python3.10 -m pytest --doctest-modules
============================= test session starts
==============================
platform linux -- Python 3.10.6, pytest-6.2.5, py-1.10.0, pluggy-0.13.0
-- /usr/bin/python3.10
cachedir: .pytest_cache
rootdir: /<<PKGBUILDDIR>>, configfile: pytest.ini
collecting ... Trace/breakpoint trap (core dumped)
E: pybuild pybuild:369: test: plugin distutils failed with: exit
code=133: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.10/build; python3.10
-m pytest --doctest-modules
dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p
3.10 returned exit code 13
make[1]: *** [debian/rules:25: override_dh_auto_test] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:8: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit
status 2
--------------------------------------------------------------------------------
-- 
This message was sent from Launchpad by
MattRose (https://launchpad.net/~mattrose)
using the "Contact this team's admins" link on the Build Daemon Maintainers
team page (https://launchpad.net/~launchpad-buildd-admins).
For more information see
https://help.launchpad.net/YourAccount/ContactingPeople