[2020-10-07T09:55:56.175Z] + make STRESS_TEST_OPTIONS=-timeout=20m -race -v -parallel 1 -C libbeat stress-tests
[2020-10-07T09:55:56.175Z] make: Entering directory '/var/lib/jenkins/workspace/Beats_beats_PR-21614/src/github.com/elastic/beats/libbeat'
[2020-10-07T09:55:56.438Z] dirname: missing operand
[2020-10-07T09:55:56.438Z] Try 'dirname --help' for more information.
[2020-10-07T09:55:56.438Z] dirname: missing operand
[2020-10-07T09:55:56.438Z] Try 'dirname --help' for more information.
[2020-10-07T09:55:56.438Z] if [ -n '' ]; then \
[2020-10-07T09:55:56.438Z] 	go test --tags=stresstest -timeout=20m -race -v -parallel 1 ; \
[2020-10-07T09:55:56.438Z] fi
[2020-10-07T09:55:56.438Z] make: Leaving directory '/var/lib/jenkins/workspace/Beats_beats_PR-21614/src/github.com/elastic/beats/libbeat'