I have a good number of mods installed (using forge) and was going to create a new world to test them out. It starts building the world like usual, but before actually spawning me into the world, the game crashes. It doesn't generate any crash log, so I can't give much more information. The mods I have installed are:
EVOC
NEI
Infinibows
Not Enough Keys
WAILA
Enchiridion
More Fuel, Tweaks, and Everything
Sort Fix
Enchanting Plus
Enhanced Portals
Twilight Forest
Dragon Mounts
Thaumcraft 4
Thaumic Tinkerer
Thaumcraft Mob Aspects
Xeno's Reliquary
Morph
Witchery
Necromancy
Ars Magica 2
Forbidden Magic
Blood Magic
GeoStrata
Metallurgy 3
Meteorcraft
Biomes O' Plenty
Underground Biomes
Wild Caves 3
Erebus
Natura
Goblins!
HarvestCraft
GrowthCraft
Gany's Surface
Gany's End
Gany's Nether
Roguelike Dungeons
Bibiliocraft
Bibliowoods Natura
Bibliowoods Biomes O' Plenty
Craft Heraldry
Secret Rooms
Torch Levers
Archimedes Ships
JABBA
Mr. Crayfish's Furnitur
Better Crafting
XACT
More Bricks Mod
Carpenter's Blocks
Chisel
Ender Storage
Better Archery
Backpacks
Direction HUD
Status Effect HUD
Armor Status HUD
Gravestone
Antique Atlas
Lycanite's Mobs
Lost Books
Extra Utilities
Open Blocks
Code Chicken Core
Enhanced Core
Dragon API
bspkrsCore
AutoUtils
KeithyUtils
Open Mod Lib
2014-05-12 13:06:24 [INFO] [STDOUT] Loading NEI
2014-05-12 13:06:24 [INFO] [Minecraft-Server] Zefalcon[/127.0.0.1:0] logged in with entity id 409 at (-51.5, 64.0, 258.5)
2014-05-12 13:06:24 [INFO] [Minecraft-Server] Zefalcon joined the game
2014-05-12 13:06:24 [INFO] [STDOUT] Loading Player: Zefalcon
2014-05-12 13:06:24 [INFO] [STDOUT] Sending serverside check to: Zefalcon
2014-05-12 13:06:25 [INFO] [antiqueatlas] Sent custom biome data to player Zefalcon in 0 pieces.
2014-05-12 13:06:25 [INFO] [antiqueatlas] Sent markers data to player Zefalcon in 0 pieces.
2014-05-12 13:06:25 [INFO] [STDOUT] Setting up custom skins
2014-05-12 13:06:25 [INFO] [Minecraft-Client] [CHAT] BiblioCraft has been updated to version 1.7.0 for Minecraft 1.7.2. Lots of new features including Fancy Signs, Fancy Workbench w/ recipe books, Sword pedestals, Big books and more! Download available at http://www.bibliocraftmod.com
2014-05-12 13:06:26 [INFO] [Waila] Received server authentication msg. Remote sync will be activated
2014-05-12 13:06:26 [INFO] [ForgeModLoader] [THAUMCRAFT] Client received server config settings.
2014-05-12 13:06:26 [INFO] [ForgeModLoader] [THAUMCRAFT] CHEAT_SHEET[false], WARDED_STONE[true], MIRRORS[true], HARD_NODES[true], RESEARCH_DIFFICULTY[0], ASPECT_CAP[8], ASPECT_TOTAL_CAP[64
2014-05-12 13:06:26 [INFO] [ForgeModLoader] Ars Magica 2 >> Received player login packet. Secondary tree cap: 99. Disabled skills: 0
2014-05-12 13:06:26 [INFO] [STDOUT] Setting up custom skins
2014-05-12 13:06:26 [INFO] [STDOUT] Loading World: local/This is a Test
2014-05-12 13:07:55 [INFO] [Minecraft-Client] Stopping!
2014-05-12 13:07:58 [INFO] [STDOUT]
2014-05-12 13:07:58 [INFO] [STDOUT] SoundSystem shutting down...
2014-05-12 13:08:00 [INFO] [STDERR] java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl2
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.world.World.func_72914_a(World.java:4420)
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:662)
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
2014-05-12 13:08:00 [INFO] [STDERR] Caused by: java.lang.ClassNotFoundException: net.minecraft.world.CallableLvl2
2014-05-12 13:08:00 [INFO] [STDERR] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
2014-05-12 13:08:00 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2014-05-12 13:08:00 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2014-05-12 13:08:00 [INFO] [STDERR] ... 6 more
2014-05-12 13:08:00 [INFO] [STDERR] Caused by: java.lang.OutOfMemoryError: PermGen space
2014-05-12 13:08:00 [SEVERE] [Minecraft-Server] Encountered an unexpected exception NoClassDefFoundError
java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl2
at net.minecraft.world.World.func_72914_a(World.java:4420)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:662)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.ClassNotFoundException: net.minecraft.world.CallableLvl2
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 6 more
Caused by: java.lang.OutOfMemoryError: PermGen space
2014-05-12 13:08:02 [INFO] [Minecraft-Server] Stopping server
2014-05-12 13:08:02 [INFO] [Minecraft-Server] Saving players
2014-05-12 13:08:03 [INFO] [STDERR] java.lang.OutOfMemoryError: PermGen space
2014-05-12 13:08:04 [INFO] [STDOUT] Author: Paul Lamb, www.paulscode.com
2014-05-12 13:08:04 [INFO] [STDERR] Exception in thread "Server thread" java.lang.OutOfMemoryError: PermGen space
2014-05-12 13:08:04 [INFO] [STDOUT]
2014-05-12 13:08:05 [SEVERE] [ForgeModLoader] Unable to launch
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
Caused by: java.lang.OutOfMemoryError: PermGen space
Is this what you meant? It was a super huge file, so I just pasted the bottom part. It looks like it just ran out of memory.
NEI
Infinibows
Not Enough Keys
WAILA
Enchiridion
More Fuel, Tweaks, and Everything
Sort Fix
Enchanting Plus
Enhanced Portals
Twilight Forest
Dragon Mounts
Thaumcraft 4
Thaumic Tinkerer
Thaumcraft Mob Aspects
Xeno's Reliquary
Morph
Witchery
Necromancy
Ars Magica 2
Forbidden Magic
Blood Magic
GeoStrata
Metallurgy 3
Meteorcraft
Biomes O' Plenty
Underground Biomes
Wild Caves 3
Erebus
Natura
Goblins!
HarvestCraft
GrowthCraft
Gany's Surface
Gany's End
Gany's Nether
Roguelike Dungeons
Bibiliocraft
Bibliowoods Natura
Bibliowoods Biomes O' Plenty
Craft Heraldry
Secret Rooms
Torch Levers
Archimedes Ships
JABBA
Mr. Crayfish's Furnitur
Better Crafting
XACT
More Bricks Mod
Carpenter's Blocks
Chisel
Ender Storage
Better Archery
Backpacks
Direction HUD
Status Effect HUD
Armor Status HUD
Gravestone
Antique Atlas
Lycanite's Mobs
Lost Books
Extra Utilities
Open Blocks
Code Chicken Core
Enhanced Core
Dragon API
bspkrsCore
AutoUtils
KeithyUtils
Open Mod Lib
Is this what you meant? It was a super huge file, so I just pasted the bottom part. It looks like it just ran out of memory.