tst_qglthreads is unstable on windows 7

QtQA::App::TestRunner: begin tst_qglthreads: [release\tst_qglthreads.exe] [-silent] [-o] [C:\work\ci\qt\qtbase\5.5\_artifacts\test-logs\tst_qglthreads.exe-testresults-00.xml,xml] [-o] [-,txt]
Testing tst_QGLThreads
QtQA::App::TestRunner: Process exited with exit code 0xC0000005 (STATUS_ACCESS_VIOLATION)
QtQA::App::TestRunner: test failed, running again to see if it is flaky...
********* Start testing of tst_QGLThreads *********
Config: Using QtTest library 5.5.0, Qt 5.5.0 (i386-little_endian-ilp32 shared (dynamic) release build; by MSVC 2010)
PASS   : tst_QGLThreads::initTestCase()
PASS   : tst_QGLThreads::swapInThread()
PASS   : tst_QGLThreads::textureUploadInThread()
PASS   : tst_QGLThreads::renderInThread(basic)
PASS   : tst_QGLThreads::renderInThread(with-resize)
PASS   : tst_QGLThreads::renderInThread(with-update)
PASS   : tst_QGLThreads::renderInThread(with-resize-and-update)
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 4.3, options QFlags(), depthBufferSize -1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior 0, swapInterval 1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnGLWidgetInThread() Unable to create a GL Context.
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnGLWidgetInThread() Unable to create a GL Context.
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnGLWidgetInThread() Unable to create a GL Context.
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnGLWidgetInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnGLWidgetInThread() Unable to create a GL Context.
PASS   : tst_QGLThreads::painterOnGLWidgetInThread()
PASS   : tst_QGLThreads::painterOnPixmapInThread()
QSYSTEM: tst_QGLThreads::painterOnPboInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 4.3, options QFlags(), depthBufferSize -1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior 0, swapInterval 1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnPboInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnPboInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnPboInThread() Unable to create a GL Context.
QSYSTEM: tst_QGLThreads::painterOnPboInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnPboInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnPboInThread() Unable to create a GL Context.
QSYSTEM: tst_QGLThreads::painterOnPboInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnPboInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnPboInThread() Unable to create a GL Context.
QSYSTEM: tst_QGLThreads::painterOnPboInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnPboInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnPboInThread() Unable to create a GL Context.
PASS   : tst_QGLThreads::painterOnPboInThread()
QSYSTEM: tst_QGLThreads::painterOnFboInThread() ARB::createContext: wglCreateContextAttribsARB() failed (GL error code: 0x0) for format: QSurfaceFormat(version 2.0, options QFlags(), depthBufferSize 1, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 1, samples -1, swapBehavior 2, swapInterval -1, profile  0), shared context: 0x0 ()
QSYSTEM: tst_QGLThreads::painterOnFboInThread() GDI::createContext: wglCreateContext failed. (Not enough storage is available to process this command.)
QWARN  : tst_QGLThreads::painterOnFboInThread() Unable to create a GL Context.
QtQA::App::TestRunner: Process exited with exit code 0xC0000005 (STATUS_ACCESS_VIOLATION)
QtQA::App::TestRunner: test failure could be reproduced twice consecutively
QtQA::App::TestRunner: end tst_qglthreads: 114 seconds, exit code 3221225477
QtQA::App::TestScheduler: tst_qglthreads failed