Failed to start logs in journalctl

[tmzhuang]

I'm starting swaync from an exec block in my sway config with just default configs. swaync seems to be up by the time I'm able to use my system but I get these messages in my journalctl:

Feb 27 19:32:22 jupiter systemd[687]: Failed to start Swaync notification daemon.
Feb 27 19:32:22 jupiter systemd[687]: Failed to start Swaync notification daemon.
Feb 27 19:32:23 jupiter systemd[687]: Failed to start Swaync notification daemon.
Feb 27 19:32:23 jupiter systemd[687]: Failed to start Swaync notification daemon.
Feb 27 21:57:27 jupiter systemd[687]: Failed to start Swaync notification daemon.```

For reference, this is the block inside my sway config:
```exec {
    ...
    --no-startup-id swaync
    ...
}

How can I get more info about these error messages. (Just to be clear my swaync works fine despite these messsages.) I'm thinking maybe I'm not starting swaync in the right way.