I see the same segmentation fault that fossfreedom points out also happening in my Ubuntu MATE logs (which are in https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/2012159 which is a dupe of this). My very first guess is that this is that GLib update messing us up again with the removed slice allocator.
I see the same segmentation fault that fossfreedom points out also happening in my Ubuntu MATE logs (which are in https:/ /bugs.launchpad .net/ubuntu/ +source/ ubiquity/ +bug/2012159 which is a dupe of this). My very first guess is that this is that GLib update messing us up again with the removed slice allocator.