Crashes on launch trying to unlock mutex

[sysfu]

Step to reproduce:
Install arista on Elementary OS Freya 0.3.2
Launch Arista
Crashes with error "Attempt to unlock mutex that was not locked"

Related bug information and info
https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/1376530
https://bugzilla.gnome.org/show_bug.cgi?id=735428

Workaround GTK patch:
GNOME/gtk@79c3ff3