Issues:

qmetatype-test takes really long to compile with MSVC2012 (Friedemann: 0e4c41b7a3e7d3e2cf2d1ef6d936a9458d0f9528 (Qt5/stable) )

Position/Size etc related failues:
tst_qgraphicsview (Olli: stable 083d2c8bb8a2a0fc92342625049bd7becdcea922. Apparently very involved: Several issues in styles-related code detected)
tst_qgridlayout (Friedemann Qt 5 stable: d5d79f3c7f9e597cb63dfa8a9ccfb9dca733a782, Qt 4: 391aecea93a04aee710352b86a019b4f85893144 )
tst_qstyle (Friedemann: Qt 5 stable 34e60228d4d449f6ec9177e3ef731089db0fcef9, Qt 4: 7801f57ef3d79e30836f3470d1f7cbecf7a082ba )
tst_qquicktext
tst_qquicktextedit (Friedemann: Cannot reproduce. Open GL?)
tst_qmenu (Friedemann: caused by CI not booting to desktop, cannot really reproduce, https://codereview.qt-project.org/#change,42880 anyways)
tst_qaccessibility (Apparently a real Win8 problem, not just Aero. Created subtask)

Crash in tst_qgreewidget (accessibility): Qt 5 stable 9941bf5118f1944fe882497444308e7d3a48e349

Color related failures: (Friedemann: Can reproduce neither. Maybe OpenGL-related?)
tst_rendernode
tst_qquickimage

Other Failures:
scripts
tst_qsettings (Friedemann: Looks like it does not have permissions to write the registry for native formats) (Janne A: Win7 machines have had UAC disabled, UAC to be disabled also in Win8: https://codereview.qt-project.org/43232, itmay have impact to this test case )
tst_qquickloader (Friedemann Qt 5 stable 29152ec5208261e3d1ad8fa7de4d22efce3de813 )
tst_qquicktextinput (Friedemann Qt 5 stable: da33815fbe356d068af413ca1af9237f551e4f03 )
tst_qquicklistview (Fixed by Qt 5 stable qtbase acbb6f18978e5d8bd69c6772fc117e48f672a2c0 . See also https://codereview.qt-project.org/#change,43140 , was thrown off by a Windows QPA warning)
tst_qqmllanguage (Friedemann Qt 5 stable: 5e4cc79e0669b76f8f5bf5192a0b7001ff8f4d58 )
tst_qqmlbundle (Friedemann: Qt 5 stable: b7119dc2cb8fa827e80cf3748fa4d211d4aa073e )
tst_qdeclarativetextinput (massive, Subtask created)
tst_qdeclarativetextedit (Qt 5 stable: Partial fix If1496e11db9638e7febd3af637ad55d7c6f11409 )
tst_qdeclarativeborderimage

Numerical failures (infinity etc - possible 64-bit related):
tst_qscriptjstestsuite
tst_qscriptv8testsuite

OpenGL related failures: QSGSimpleMaterialShader does not implement 'uniform highp mat4 qt_Matrix;' in its vertex shader
tst_qquickage
tst_qquickangleddirection
tst_qquickcumulativedirection
tst_qquickcustomaffector
tst_qquickellipseextruder
tst_qquickfriction
tst_qquickgravity
tst_qquickgroupgoal
tst_qquickimageparticle
tst_qquickitemlayer
tst_qquicklineextruder
tst_qquickmaskextruder
tst_qquickparticlegroup
tst_qquickparticlesystem
tst_qquickpointattractor
tst_qquickpointdirection
tst_qquickrectangleextruder
tst_qquickspritegoal
tst_qquicktargetdirection
tst_qquicktrailemitter
tst_qquickturbulence
tst_qquickwander
tst_examples (qtdeclarative)

OpenGL related failures: QWindowsGLContext::getProcAddress: Unable to resolve 'XXX'
tst_qmlshadersplugin
tst_qmdiarea (Friedemann: Qt 5 stable: 3e3451f42989a0dbd2398da78ad84441c7898fd3 for large fonts, Qt 4 a1d757850e6e6fdad7ac2ebda8142f0e1419e7b9 ).
tst_qgl

Insignificant failures:
tst_qaudiodecoderbackend [insignificant]
tst_qftp [insignificant]
tst_qglthreads [insignificant]
tst_qmediaplayerbackend [insignificant]
qtquick1 : tst_qmlvisual [insignificant] Image test failing on all platforms, Qt 5 stable 3c1479f8a43c13b2f9f93e63ae2247907546c0ae, see QTBUG-28735
tst_qnetworkreply [insignificant]
=== Totals: 749 tests, 696 passes, 47 fails, 6 insignificant fails =============

Complete build log is available from:

http://qt-dev-ci.ci.local/job/Qt5_stable_Integration/cfg=win64-msvc2012_developer-build_qtnamespace_Windows_8/1/consoleText