World load crash

Upon starting to play in a world, the sky, clouds, and character appear. The world itself doesn't load, and the game eventually crashes and closes. This has happened consistently. Attached is the Game log and a screenshot of the world attempting to load. Screenshots don't seem to capture the Minecraft window when Minecraft is in full screen, so I had to change to a windowed view.

What I expected to happen:
I expected to be able to create and play on a world.

What actually happened was:
Instead, the world fails to load, and the game crashes.

Steps to Reproduce:
1.Create a new world
2.Click Play
3.Wait for world to load