Unfortunately, does seem to still have a habit of crashing even when run from .xprofile. I've uploaded a sample of the log output at https://pastebin.com/Wak2j1TX
It's looking like it was crashing because I was starting it after my window manager and several tray apps had already started.
I've put it in my .xprofile and looks to be stable so far. Give me a few work days to try it in anger to be sure and if it looks good I'll close the issue later this week. Sorry for the hassle. Sound okay?
I'm finding snixembed runs anywhere from 2 to 20 minutes or so then segfaults on me. Haven't been able to pin it down to a specific tray item as yet.
Running Awesome window manager on Arch Linux. My stacktrace is available at https://pastebin.com/PCaqnPbV