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Kazuaki Ishizaki authored and Wes McKinney committed 17d1836abde
ARROW-8982: [CI] Remove allow_failures for s390x on TravisCI This PR removes `allow_failures` option for s390x on TravisCI. This is because the current master can succeed all of the existing tests enabled for s390x, as you can see https://travis-ci.org/github/apache/arrow/jobs/692580505. Closes #7301 from kiszk/ARROW-8982 Authored-by: Kazuaki Ishizaki <ishizaki@jp.ibm.com> Signed-off-by: Wes McKinney <wesm+git@apache.org>