--- Operating System, Graphics card ---
Windows 7 64bit, GTX 560ti

--- Blender version with error, and version that worked ---
r55918 to r55983

--- Short description of error ---
This file renders fine in older (2.66a, 2.65a), but it crashed newer SVN builds every time F12 is pressed.
It may not be a problem of FreeStyle, because it crashed with and without it.

--- Steps for others to reproduce the error (preferably based on attached .blend file) ---
Just press render/F12 on the file.