I planned to be bold :-) (cf. Gerrit change #104748), but looking at the console log it's too complicated for a quick fix.
Premise: In case the testsuite fails for labs/toollabs, the generated tests/testsuite.log needs to be available for debugging.
On Travis CI, I used:
dpkg-buildpackage -b -rfakeroot -uc | cat tests/testsuite.log | |
as a test; in Jenkins, "artifacts" are probably the better way to go.
However, artifacts are apparently archived at the end of the job (cf. https://integration.wikimedia.org/ci/job/labs-toollabs-debian-glue/lastBuild/console, 14:00:49), while tests/testsuite.log seems to be deleted directly after the build fails ("DEB_KEEP_BUILD_ENV is not set to 'true', not keeping build environment", 14:00:45).
I'm not sure what options Jenkins offers to solve this.
Version: unspecified
Severity: normal