This problem started happening today.
https://integration.wikimedia.org/ci/view/Beta/job/beta-build-scap-deb/85/console
... 10:44:32 + set -o pipefail 10:44:32 + /usr/bin/lintian-junit-report --filename lintian-binary.txt scap_4.0.3-1+0~20211115184342.85~1.gbp2039bb.dsc 10:44:32 + tee lintian-binary.xml 10:44:32 Warning: Please use 'profile' in config file; LINTIAN_PROFILE is obsolete. 10:44:32 The tag new-package-should-close-itp-bug was renamed to initial-upload-closes-no-bugs. Please adjust your profile. 10:44:35 <?xml version='1.0'?><testsuite time='3.163811683654785' tests='1' failures='0' skipped='0' errors='0' assertions='0' 10:44:35 ><testcase name='lintian-checks' classname='lintian.<all>' assertions='0' time='3.163811683654785' 10:44:35 /></testsuite 10:44:35 >+ /usr/bin/lintian-junit-report --filename lintian-source.txt scap_4.0.3-1+0~20211115184342.85~1.gbp2039bb_amd64.changes 10:44:35 + tee lintian-source.xml 10:44:35 Warning: Please use 'profile' in config file; LINTIAN_PROFILE is obsolete. 10:44:36 The tag new-package-should-close-itp-bug was renamed to initial-upload-closes-no-bugs. Please adjust your profile. 10:44:39 <?xml version='1.0'?><testsuite time='3.80230712890625' tests='1' failures='0' skipped='0' errors='0' assertions='0' 10:44:40 ><testcase name='lintian-checks' classname='lintian.<all>' assertions='0' time='3.80230712890625' 10:44:40 /></testsuite 10:44:40 >+ set +o pipefail 10:44:40 + echo 1bd9f967a04ff2c2f180263dabf21258e1d41dbe 10:44:40 + echo scap_4.0.3-1+0~20211115184342.85~1.gbp2039bb.dsc 10:44:40 + sed -E -e 's/^scap_(.*)\.dsc$/\1/' 10:44:40 + exit 0 10:44:40 INFO: Processing JUnit 10:44:40 INFO: [JUnit] - 2 test report file(s) were found with the pattern 'lintian-*.xml' relative to '/srv/jenkins/workspace/workspace/beta-build-scap-deb' for the testing framework 'JUnit'. 10:44:41 WARNING: The file '/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml' is an invalid file. 10:44:41 WARNING: At line 2 of file:/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml:cvc-pattern-valid: Value '3.163811683654785' is not facet-valid with respect to pattern '(([0-9]{0,3},)*[0-9]{3}|[0-9]{0,3})*(\.[0-9]{0,3})?' for type 'SUREFIRE_TIME'. 10:44:41 WARNING: At line 2 of file:/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml:cvc-attribute.3: The value '3.163811683654785' of attribute 'time' on element 'testsuite' is not valid with respect to its type, 'SUREFIRE_TIME'. 10:44:41 WARNING: At line 2 of file:/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml:cvc-complex-type.3.2.2: Attribute 'assertions' is not allowed to appear in element 'testsuite'. 10:44:41 WARNING: At line 2 of file:/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml:cvc-complex-type.4: Attribute 'name' must appear on element 'testsuite'. 10:44:41 WARNING: At line 3 of file:/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml:cvc-complex-type.3.2.2: Attribute 'assertions' is not allowed to appear in element 'testcase'. 10:44:41 ERROR: Step ‘Publish xUnit test result report’ failed: The result file '/srv/jenkins/workspace/workspace/beta-build-scap-deb/lintian-binary.xml' for the metric 'JUnit' is not valid. The result file has been skipped.
While waiting for help I'm going to disable Junit data collection in the job configuration.