[Wine] wineboot fails

[Sven]

I was trying to run my winetest script today after updating to latest git. The script cleans my testprefix, makes a new one, downloads the newest winetest and then runs winetest, but it failed at wineboot. This also happens when I just try to use wineboot. I must be doing something wrong, but I don't see what. 

Here's the terminal output + backtrace when from wineboot

http://pastebin.com/wEqcN1qG