unity8 crashed with SIGABRT in raise()

This happens when you press the power button twice to turn the screen off and on very quickly.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity8 7.82+13.10.20131010-0ubuntu1
Uname: Linux 3.4.0-3-mako armv7l
ApportVersion: 2.12.5-0ubuntu1
Architecture: armhf
Date: Thu Oct 10 21:35:51 2013
ExecutablePath: /usr/bin/unity8
ExecutableTimestamp: 1381379875
InstallationDate: Installed on 2013-10-10 (0 days ago)
InstallationMedia: Ubuntu Saucy Salamander (development branch) - armhf (20131010.2)
MarkForUpload: True
ProcCmdline: unity8
ProcCwd: /home/phablet
Signal: 6
SourcePackage: unity8
StacktraceTop:
 __gnu_cxx::__verbose_terminate_handler () at ../../../../src/libstdc++-v3/libsupc++/vterminate.cc:95
 __cxxabiv1::__terminate (handler=<optimized out>) at ../../../../src/libstdc++-v3/libsupc++/eh_terminate.cc:38
 std::terminate () at ../../../../src/libstdc++-v3/libsupc++/eh_terminate.cc:48
 std::(anonymous namespace)::execute_native_thread_routine (__p=<optimized out>) at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:92
 start_thread (arg=0x4cd1a460) at pthread_create.c:313
Title: unity8 crashed with SIGABRT in raise()
UpgradeStatus: No upgrade log present (probably fresh install)
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