Apparently in 1.6.11, System: http://paste.ubuntu.com/10683485/ Log: http://paste.ubuntu.com/10681916/ (From #minecrafthelp)
Launcher crashes similarly to above: reinstalled Java, reinstalled Minecraft, used EXE/MSI installer and old "Windows (Alternative)" launcher as well as the JAR launcher. Attempted to get the user to put commons-io on the classpath, but they left before this could be tested.
Ok thanks, but is there a way to fix it?