Broken xorg-x11-server

[Steven Usdansky]

These work:
xorg-x11-server-common-1.15.99.902-3.fc21.x86_64
xorg-x11-server-Xorg-1.15.99.902-3.fc21.x86_64
xorg-x11-drv-nouveau-1.0.10-2.fc21.x86_64

After today's (1-May) update, these do not work:
xorg-x11-server-common-1.15.99.902-5.20140428.fc21.x86_64
xorg-x11-server-Xorg-1.15.99.902-5.20140428.fc21.x86_64 Installed:
xorg-x11-drv-nouveau-1.0.10-3.fc21.x86_64

File the bug or wait it out? Everything looks normal in /var/log/Xorg.0.log
(with today's updates) until the backtrace appears:
[   383.058] (II) AIGLX: Screen 0 is not DRI2 capable
[   383.058] (EE) AIGLX: reverting to software rendering
[   383.068] (II) AIGLX: Loaded and initialized swrast
[   383.068] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[   383.068] (EE)
[   383.068] (EE) Backtrace:
[   383.068] (EE) 0: /usr/libexec/Xorg.bin (OsLookupColor+0x119) [0x59b3a9]
[   383.069] (EE) 1: /lib64/libc.so.6 (__restore_rt+0x0) [0x7f2e20f94c7f]
[   383.070] (EE) 2: /usr/libexec/Xorg.bin (DamageRegister+0x11) [0x51c741]
[   383.070] (EE) 3: /usr/lib64/xorg/modules/libshadowfb.so (_init+0x361)
[0x7f2e1f9e1e41]
[   383.071] (EE) 4: /usr/lib64/xorg/modules/drivers/nouveau_drv.so
(_init+0xa367) [0x7f2e2002a4f7]
[   383.071] (EE) 5: /usr/libexec/Xorg.bin (InitExtensions+0x8be) [0x4af3ce]
[   383.071] (EE) 6: /usr/libexec/Xorg.bin (remove_fs_handlers+0x2d6)
[0x43d106]
[   383.072] (EE) 7: /lib64/libc.so.6 (__libc_start_main+0xf0)
[0x7f2e20f7f0c0]
[   383.072] (EE) 8: /usr/libexec/Xorg.bin (_start+0x29) [0x4275ce]
[   383.073] (EE) 9: ? (?+0x29) [0x29]
[   383.073] (EE)
[   383.073] (EE) Segmentation fault at address 0x10
[   383.073] (EE)
Fatal server error:
[   383.073] (EE) Caught signal 11 (Segmentation fault). Server aborting
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