I'm running 11.14.0.1246 (the latest build as of now), and the same thing happened with the previous version, 11.14.0.1245. I am only running one mod: Zyin's HUD mod v1.4.0 for 1.8. It is a .jar mod installed through the /mods folder. I contacted the mod developer first, and he directed me here and told me that there seems to be an issue with the state of iron bars or something with Forge, and I crash whenever I look at them in game...
Here is the latest log: http://pastebin.com/J5FXC8SS
Here is my last crash report: http://pastebin.com/KtGWKyWZ
Any information is much appreciated.