"tst_QThread::create() Received a fatal error on" QEMU

agent:2018/03/22 11:48:24 build.go:593: 
agent:2018/03/22 11:48:24 build.go:396: Executing instruction 255 of 941 - SetExecutionPhaseName
agent:2018/03/22 11:48:24 build.go:593: 
agent:2018/03/22 11:48:24 build.go:396: Executing instruction 256 of 941 - RunQtUnitTest
agent:2018/03/22 11:48:24 build.go:262: [taskset -c 0 make check -j1] 900 900
/home/qt/work/qt/qtbase/tests/auto/corelib/thread/qthread/target_wrapper.sh  ./tst_qthread -o /home/qt/work/testresults/tests/auto/corelib/thread/qthread887342017,xml -o -,txt
********* Start testing of tst_QThread *********
Config: Using QtTest library 5.11.0, Qt 5.11.0 (arm-little_endian-ilp32-eabi-hardfloat shared (dynamic) release build; by GCC 6.2.0)
PASS   : tst_QThread::initTestCase()
PASS   : tst_QThread::currentThreadId()
PASS   : tst_QThread::currentThread()
QDEBUG : tst_QThread::idealThreadCount() Ideal thread count: 4
PASS   : tst_QThread::idealThreadCount()
PASS   : tst_QThread::isFinished()
PASS   : tst_QThread::isRunning()
PASS   : tst_QThread::setPriority()
PASS   : tst_QThread::setStackSize()
PASS   : tst_QThread::exit()
PASS   : tst_QThread::start()
PASS   : tst_QThread::terminate()
PASS   : tst_QThread::quit()
PASS   : tst_QThread::started()
PASS   : tst_QThread::finished()
PASS   : tst_QThread::terminated()
PASS   : tst_QThread::exec()
PASS   : tst_QThread::sleep()
PASS   : tst_QThread::msleep()
PASS   : tst_QThread::usleep()
PASS   : tst_QThread::nativeThreadAdoption()
PASS   : tst_QThread::adoptedThreadAffinity()
PASS   : tst_QThread::adoptedThreadSetPriority()
PASS   : tst_QThread::adoptedThreadExit()
PASS   : tst_QThread::adoptedThreadExec()
PASS   : tst_QThread::adoptedThreadFinished()
PASS   : tst_QThread::adoptedThreadExecFinished()
PASS   : tst_QThread::adoptMultipleThreads()
PASS   : tst_QThread::adoptMultipleThreadsOverlap()
PASS   : tst_QThread::exitAndStart()
PASS   : tst_QThread::exitAndExec()
PASS   : tst_QThread::connectThreadFinishedSignalToObjectDeleteLaterSlot()
PASS   : tst_QThread::wait2()
PASS   : tst_QThread::wait3_slowDestructor()
PASS   : tst_QThread::destroyFinishRace()
PASS   : tst_QThread::startFinishRace()
PASS   : tst_QThread::startAndQuitCustomEventLoop()
PASS   : tst_QThread::isRunningInFinished()
PASS   : tst_QThread::customEventDispatcher()
PASS   : tst_QThread::requestTermination()
SKIP   : tst_QThread::stressTest() Qemu uses too much memory for each thread. Test would run out of memory.
   Loc: [tst_qthread.cpp(949)]
PASS   : tst_QThread::quitLock()

=== Received signal at function time: 33ms, total time: 17428ms, dumping stack ===
GNU gdb (Ubuntu 8.0.1-0ubuntu1) 8.0.1
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Attaching to process 19553
(gdb) === End of stack trace ===
QFATAL : tst_QThread::create() Received signal 11
         Function time: 32ms Total time: 17427ms
BFAIL  : tst_QThread::create() Received a fatal error.
   Loc: [Unknown file(0)]
Totals: 40 passed, 0 failed, 1 skipped, 1 blacklisted, 17818ms
********* Finished testing of tst_QThread *********
qemu: uncaught target signal 6 (Aborted) - core dumped
Makefile:322: recipe for target 'check' failed
make: *** [check] Aborted (core dumped)

agent:2018/03/22 11:48:42 build.go:187: Process finished with error: exit status 2
agent:2018/03/22 11:48:42 build.go:139: Error reading from stdout/err: exit status 2