/usr/libexec/fwupd/fwupd:11:g_type_check_instance_is_fundamentally_a:g_object_unref:g_set_object:fu_plugin_coldplug:fu_plugin_runner_coldplug

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding fwupd. This problem was most recently seen with package version 1.5.8-0ubuntu1, the problem page at https://errors.ubuntu.com/problem/7d1d3c9f4694cc8f4fcae59d0740439399a5df08 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

[Mario Limonciello (superm1)]

As this code was overhauled in upstream and the line that crashed no longer exists, I have reason to believe this issue is fixed in the 1.7.x codebase. If that's wrong, let's revisit on a 1.7.4 version package.