Logging from a failed network request occasionally crashes

[JackWink]

We post a notification when a network request fails and our notification handler reports the failure to Bugsnag. Occasionally we end up with a crash while trying to report an error to Bugsnag:

Pods/Bugsnag/KSCrash/Source/KSCrash/Recording/Sentry/KSCrashSentry_User.c:73:26 kscrashsentry_reportUserException
Pods/Bugsnag/KSCrash/Source/KSCrash/Recording/KSCrash.m:382:5 -[KSCrash reportUserException:reason:lineOfCode:stackTrace:terminateProgram:]
Pods/Bugsnag/Source/Bugsnag/BugsnagNotifier.m:122:5 -[BugsnagNotifier notify:withData:atSeverity:atDepth:]
Pods/Bugsnag/Source/Bugsnag/Bugsnag.m:90:5 +[Bugsnag notify:withData:]

It's not very frequent (we've had 16 of these reports since June), but I thought we'd pass this along in case anyone had any thoughts.