tst_clientSSL::testRun() failed

agent:2019/01/25 20:23:17 build.go:192: /Users/qt/work/qt/qtremoteobjects/tests/auto/external_IODevice/tst_client/target_wrapper.sh  ./tst_external_IODevice -o /Users/qt/work/testresults/tests/auto/external_IODevice/tst_client611782263,xml -o -,txt
agent:2019/01/25 20:23:17 build.go:192: ********* Start testing of tst_clientSSL *********
agent:2019/01/25 20:23:17 build.go:192: Config: Using QtTest library 5.13.0, Qt 5.13.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by Clang 9.0.0 (clang-900.0.39.2) (Apple))
agent:2019/01/25 20:23:17 build.go:192: PASS   : tst_clientSSL::initTestCase()
agent:2019/01/25 20:23:18 build.go:192: FAIL!  : tst_clientSSL::testRun() 'socketClient->waitForEncrypted(-1)' returned FALSE. ()
agent:2019/01/25 20:23:18 build.go:192:    Loc: [tst_client.cpp(77)]
agent:2019/01/25 20:23:18 build.go:192: QSslSocket::error QAbstractSocket::RemoteHostClosedError
agent:2019/01/25 20:23:18 build.go:192: QWARN  : tst_clientSSL::testRun() QProcess: Destroyed while process ("/Users/qt/work/qt/qtremoteobjects/tests/auto/external_IODevice/sslTestServer/sslTestServer") is still running.
agent:2019/01/25 20:23:18 build.go:192: PASS   : tst_clientSSL::cleanupTestCase()
agent:2019/01/25 20:23:18 build.go:192: Totals: 2 passed, 1 failed, 0 skipped, 0 blacklisted, 979ms
agent:2019/01/25 20:23:18 build.go:192: ********* Finished testing of tst_clientSSL *********
agent:2019/01/25 20:23:18 build.go:192: make: *** [check] Error 1
agent:2019/01/25 20:23:18 build.go:236: Process finished with error: exit status 2
agent:2019/01/25 20:23:18 build.go:195: Error reading from stdout/err: exit status 2