Crash On World Load

      Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Exception in server tick loop

A full error report has been saved to /home/andrew/.minecraft/crash-reports/crash-2013-01-05_16.07.32-server.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash :(



--- BEGIN ERROR REPORT 14379791 --------
Full report at:
/home/andrew/.minecraft/crash-reports/crash-2013-01-05_16.07.32-server.txt
Please show that file to Mojang, NOT just this screen!

Generated 1/5/13 4:07 PM

-- System Details --
Details:
	Minecraft Version: 13w01b
	Operating System: Linux (amd64) version 3.2.0-23-generic
	Java Version: 1.6.0_24, Sun Microsystems Inc.
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
	Memory: 39025816 bytes (37 MB) / 238616576 bytes (227 MB) up to 238616576 bytes (227 MB)
	JVM Flags: 2 total; -Xmx256M -Xms256M
	AABB Pool Size: 4358 (244048 bytes; 0 MB) allocated, 4358 (244048 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1099 (61544 bytes; 0 MB) allocated, 1099 (61544 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

java.lang.OutOfMemoryError: GC overhead limit exceeded
--- END ERROR REPORT 4558899b ----------