Most probably DirectFB crash leads to WebKit crash.

Build Configuration:
BB_VERSION        = "1.17.0"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Unknown"
TARGET_SYS        = "i586-poky-linux"
MACHINE           = "qemux86"
DISTRO            = "poky"
DISTRO_VERSION    = "1.3+snapshot-20121212"
TUNE_FEATURES     = "m32 i586"
TARGET_FPU        = ""
meta              
meta-yocto        = "master:45915123a727f86b106da7ccb761b23067b1ff88"
meta-qt3          = "master:eb092fe161b626ebfd9f744b6e86d9c549d7aa47"
meta-yocto-bsp    = "master:45915123a727f86b106da7ccb761b23067b1ff88"

Partial log:

Build status: FAILURE
Buildslave for this Build: ab10.i.yoctoproject.org 
Complete logs for all build steps: http://autobuilder.yoctoproject.org:8010/builders/nightly-world/builds/403 
Build Reason: Triggerable(nightly-world) 
Build Source Stamp: [branch master] 45915123a727f86b106da7ccb761b23067b1ff88 
Detailed log of last build step: http://autobuilder.yoctoproject.org:8010/builders/nightly-world/builds/403/steps/shell_43/logs/stdio 
Last 20 lines of "shell_43.stdio" Error log:
| from ./Source/WebCore/accessibility/AXObjectCache.h:29,
| from ./Source/WebCore/page/ChromeClient.h:24,
| from Source/WebKit/gtk/WebCoreSupport/ChromeClientGtk.h:24,
| from Source/WebKit/gtk/WebCoreSupport/ChromeClientGtk.cpp:26:
| ./Source/WebCore/dom/EventTarget.h:48:11: error: forward declaration of 'class WebCore::EventListener_3_6'
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-DragClientGtk.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-DragClientGtk.Plo
| make[1]: *** [Source/WebKit/gtk/WebCoreSupport/libwebkitgtk_1_0_la-ChromeClientGtk.lo] Error 1
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-EditorClientGtk.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-EditorClientGtk.Plo
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-FrameNetworkingContextGtk.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-FrameNetworkingContextGtk.Plo
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-AssertMatchingEnums.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-AssertMatchingEnums.Plo
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-GtkAdjustmentWatcher.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-GtkAdjustmentWatcher.Plo
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-FullscreenVideoController.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-FullscreenVideoController.Plo
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-FrameLoaderClientGtk.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-FrameLoaderClientGtk.Plo
| mv -f Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-InspectorClientGtk.Tpo Source/WebKit/gtk/WebCoreSupport/.deps/libwebkitgtk_1_0_la-InspectorClientGtk.Plo
| make[1]: Leaving directory `/srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-world/build/build/tmp/work/i586-poky-linux/webkit-gtk/1.8.2-r2/webkit-1.8.2'
| make: *** [all] Error 2
| ERROR: oe_runmake failed
| ERROR: Function failed: do_compile (see /srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-world/build/build/tmp/work/i586-poky-linux/webkit-gtk/1.8.2-r2/temp/log.do_compile.5461 for further information)
ERROR: Task 6100 (/srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-world/build/meta/recipes-sato/webkit/webkit-gtk_1.8.2.bb, do_compile) failed with exit code '1'
Summary: There were 2 ERROR messages shown, returning a non-zero exit code. 


-The Yocto BuildBot 

Error:
In file included from mesa_surface_pool.c:40:0:
| /srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-world/build/build/tmp/sysroots/qemux86/usr/include/xf86drm.h:40:17: fatal error: drm.h: No such file or directory
| compilation terminated.
| make[3]: *** [mesa_surface_pool.lo] Error 1
| make[3]: *** Waiting for unfinished jobs....
| In file included from mesa_system.h:45:0,
|                  from mesa_layer.c:37:
| /srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-world/build/build/tmp/sysroots/qemux86/usr/include/xf86drmMode.h:43:17: fatal error: drm.h: No such file or directory
| compilation terminated.
| In file included from mesa_system.h:45:0,
|                  from mesa_system.c:45:
| /srv/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-world/build/build/tmp/sysroots/qemux86/usr/include/xf86drmMode.h:43:17: fatal error: drm.h: No such file or directory
| compilation terminated.