Allow build failurs on s390x on travis.
Allow build failurs on s390x on travis.

benbenw/jmeter,benbenw/jmeter,ham1/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,apache/jmeter,etnetera/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,benbenw/jmeter,etnetera/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter