Websocket tests crash on exit with latest Openssl 1.1.1b

gent:2019/05/14 05:38:14 build.go:197: ********* Finished testing of tst_QWebSocket *********
agent:2019/05/14 05:38:15 build.go:197: A crash occurred in C:\Users\qt\work\qt\qtwebsockets\tests\auto\websockets\qwebsocket\release\tst_qwebsocket.exe.
agent:2019/05/14 05:38:15 build.go:197: Function time: 6ms Total time: 4625ms
agent:2019/05/14 05:38:15 build.go:197: 
agent:2019/05/14 05:38:15 build.go:197: Exception address: 0x7786289e
agent:2019/05/14 05:38:15 build.go:197: Exception code : 0xc0000005
agent:2019/05/14 05:38:15 build.go:197: Nearby symbol : RtlFreeHeap
agent:2019/05/14 05:38:15 build.go:197: 
agent:2019/05/14 05:38:15 build.go:197: Stack:
agent:2019/05/14 05:38:15 build.go:197: # 1: ZN5QTest15toPrettyUnicodeEPKti() - 0x6efc2700
agent:2019/05/14 05:38:15 build.go:197: # 2: UnhandledExceptionFilter() - 0x767608c1
agent:2019/05/14 05:38:15 build.go:197: # 3: EtwReplyNotification() - 0x778875d4
agent:2019/05/14 05:38:15 build.go:197: # 4: RtlInitializeExceptionChain() - 0x7787358b
agent:2019/05/14 05:38:15 build.go:197: 
agent:2019/05/14 05:38:15 build.go:197: Mingw32-make[1]: *** [Makefile.Release:84: check] Error -1073741819
agent:2019/05/14 05:38:15 build.go:197: Mingw32-make[1]: Leaving directory 'C:/Users/qt/work/qt/qtwebsockets/tests/auto/websockets/qwebsocket'
agent:2019/05/14 05:38:15 build.go:197: Mingw32-make: *** [Makefile:284: release-check] Error 2
agent:2019/05/14 05:38:15 build.go:230: Process finished with error: exit status 2
agent:2019/05/14 05:38:15 build.go:200: Error reading from stdout/err: exit status 2
agent:2019/05/14 05:38:15 build.go:783: 
agent:2019/05/14 05:38:15 build.go:534: Executing instruction 49 of 57 - SetExecutionPhaseName

agent:2019/05/14 05:38:17 build.go:197: ********* Finished testing of tst_QWebSocketServer *********
agent:2019/05/14 05:38:17 build.go:197: A crash occurred in C:\Users\qt\work\qt\qtwebsockets\tests\auto\websockets\qwebsocketserver\release\tst_qwebsocketserver.exe.
agent:2019/05/14 05:38:17 build.go:197: Function time: 3ms Total time: 1050ms
agent:2019/05/14 05:38:17 build.go:197: 
agent:2019/05/14 05:38:17 build.go:197: Exception address: 0x7786289e
agent:2019/05/14 05:38:17 build.go:197: Exception code : 0xc0000005
agent:2019/05/14 05:38:17 build.go:197: Nearby symbol : RtlFreeHeap
agent:2019/05/14 05:38:17 build.go:197: 
agent:2019/05/14 05:38:17 build.go:197: Stack:
agent:2019/05/14 05:38:17 build.go:197: # 1: ZN5QTest15toPrettyUnicodeEPKti() - 0x6efc2700
agent:2019/05/14 05:38:17 build.go:197: # 2: UnhandledExceptionFilter() - 0x767608c1
agent:2019/05/14 05:38:17 build.go:197: # 3: EtwReplyNotification() - 0x778875d4
agent:2019/05/14 05:38:17 build.go:197: # 4: RtlInitializeExceptionChain() - 0x7787358b
agent:2019/05/14 05:38:17 build.go:197: 
agent:2019/05/14 05:38:17 build.go:197: Mingw32-make[1]: *** [Makefile.Release:85: check] Error -1073741819
agent:2019/05/14 05:38:17 build.go:197: Mingw32-make[1]: Leaving directory 'C:/Users/qt/work/qt/qtwebsockets/tests/auto/websockets/qwebsocketserver'
agent:2019/05/14 05:38:17 build.go:197: Mingw32-make: *** [Makefile:284: release-check] Error 2
agent:2019/05/14 05:38:17 build.go:230: Process finished with error: exit status 2
agent:2019/05/14 05:38:17 build.go:200: Error reading from stdout/err: exit status 2
agent:2019/05/14 05:38:17 build.go:783: 
agent:2019/05/14 05:38:17 build.go:534: Executing instruction 51 of 57 - SetExecutionPhaseName
agent:2019/05/14 05:38:17 build.go:783: 
agent:2019/05/14 05:38:17 build.go:534: Executing instruction 52 of 57 - RunQtUnitTest
agent:2019/05/14 05:38:17 build.go:616: Running tests in directory C:/Users/qt/work/qt/qtwebsockets/tests/auto/qml/qmlwebsockets
agent:2019/05/14 05:38:17 runner.go:72: Generating test results with TESTARGS=-o C:\Users\qt\work\testresults\tests\auto\qml\qmlwebsockets677581050,xml -o -,txt
agent:2019/05/14 05:38:17 build.go:305: [Mingw32-make check] 900 900
agent:2019/05/14 05:38:17 build.go:197: Mingw32-make -f Makefile.Release check
agent:2019/05/14 05:38:17 build.go:197: Mingw32-make[1]: Entering directory 'C:/Users/qt/work/qt/qtwebsockets/tests/auto/qml/qmlwebsockets'
agent:2019/05/14 05:38:18 build.go:197: call C:\Users\qt\work\qt\qtwebsockets\tests\auto\qml\qmlwebsockets\target_wrapper.bat release\tst_qmlwebsockets.exe -o C:\Users\qt\work\testresults\tests\auto\qml\qmlwebsockets677581050,xml -o -,txt
agent:2019/05/14 05:38:20 build.go:197: create: Could not initialize EGL display: error 0x3001
agent:2019/05/14 05:38:20 build.go:197: create: When using ANGLE, check if d3dcompiler_4x.dll is available

agent:2019/05/14 05:38:20 build.go:197: ********* Finished testing of qmlwebsockets *********
agent:2019/05/14 05:38:20 build.go:197: Mingw32-make[1]: *** [Makefile.Release:84: check] Error -1073741819
agent:2019/05/14 05:38:20 build.go:197: Mingw32-make[1]: Leaving directory 'C:/Users/qt/work/qt/qtwebsockets/tests/auto/qml/qmlwebsockets'
agent:2019/05/14 05:38:20 build.go:197: Mingw32-make: *** [Makefile:296: release-check] Error 2
agent:2019/05/14 05:38:20 build.go:230: Process finished with error: exit status 2
agent:2019/05/14 05:38:20 build.go:200: Error reading from stdout/err: exit status 2
agent:2019/05/14 05:38:20 build.go:783: 
agent:2019/05/14 05:38:20 build.go:534: Executing instruction 53 of 57 - SetExecutionPhaseName
agent:2019/05/14 05:38:20 build.go:783: 
agent:2019/05/14 05:38:20 build.go:534: Executing instruction 54 of 57 - RunQtUnitTest
agent:2019/05/14 05:38:20 build.go:616: Running tests in directory C:/Users/qt/work/qt/qtwebsockets/tests/auto/qml/qmlwebsockets_compat
agent:2019/05/14 05:38:20 runner.go:72: Generating test results with TESTARGS=-o C:\Users\qt\work\testresults\tests\auto\qml\qmlwebsockets_compat997694993,xml -o -,txt
agent:2019/05/14 05:38:20 build.go:305: [Mingw32-make check] 900 900
agent:2019/05/14 05:38:21 build.go:197: Mingw32-make -f Makefile.Release check
agent:2019/05/14 05:38:21 build.go:197: Mingw32-make[1]: Entering directory 'C:/Users/qt/work/qt/qtwebsockets/tests/auto/qml/qmlwebsockets_compat'
agent:2019/05/14 05:38:21 build.go:197: call C:\Users\qt\work\qt\qtwebsockets\tests\auto\qml\qmlwebsockets_compat\target_wrapper.bat release\tst_qmlwebsockets_compat.exe -o C:\Users\qt\work\testresults\tests\auto\qml\qmlwebsockets_compat997694993,xml -o -,txt
agent:2019/05/14 05:38:23 build.go:197: create: Could not initialize EGL display: error 0x3001
agent:2019/05/14 05:38:23 build.go:197: create: When using ANGLE, check if d3dcompiler_4x.dll is available
agent:2019/05/14 05:38:24 build.go:197: Mingw32-make[1]: *** [Makefile.Release:84: check] Error -1073741819
agent:2019/05/14 05:38:24 build.go:197: Mingw32-make[1]: Leaving directory 'C:/Users/qt/work/qt/qtwebsockets/tests/auto/qml/qmlwebsockets_compat'
agent:2019/05/14 05:38:24 build.go:197: Mingw32-make: *** [Makefile:296: release-check] Error 2
agent:2019/05/14 05:38:24 build.go:230: Process finished with error: exit status 2
agent:2019/05/14 05:38:24 build.go:200: Error reading from stdout/err: exit status 2