==== PHP 5.5.38 (2016-07-21) $ grep -r 'Tests failed' /var/lib/mock/scl55*/build.log /var/lib/mock/scl55el6x/build.log: Tests failed : 0 /var/lib/mock/scl55el7x/build.log: Tests failed : 0 /var/lib/mock/scl55fc21x/build.log:Tests failed : 0 /var/lib/mock/scl55fc22x/build.log:Tests failed : 0 /var/lib/mock/scl55fc23x/build.log:Tests failed : 2 /var/lib/mock/scl55fc24x/build.log:Tests failed : 2 fc23, fc24: Bug #64802: openssl_x509_parse fails to parse subject properly in some cases [ext/openssl/tests/bug64802.phpt] Bug #33414 [1] (Comprehensive list of incorrect days returned after strotime() / date() tests) [ext/date/tests/bug33414-1.phpt] * proc_open have erratic results :(