Just had the same thing happen to me, on recently-updated Ubuntu 18.04.
Here are my journalctl entries from the crash (including the one from 2 seconds before in case they're relevant):
```
Oct 23 15:27:01 bad-horse code.desktop[3875]: [main 3:27:01 PM] update#setState idle
Oct 23 15:27:01 bad-horse code.desktop[3875]: bash: cannot set terminal process group (-1): Inappropriate ioctl for device
Oct 23 15:27:01 bad-horse code.desktop[3875]: bash: no job control in this shell
Oct 23 15:27:03 bad-horse gnome-session[1891]: gnome-session-binary[1891]: WARNING: Application 'org.gnome.SettingsDaemon.Color.desktop' failed to register before timeout
Oct 23 15:27:03 bad-horse gnome-session[1891]: gnome-session-binary[1891]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Oct 23 15:27:03 bad-horse gnome-session-binary[1891]: Unrecoverable failure in required component org.gnome.SettingsDaemon.Color.desktop
Oct 23 15:27:03 bad-horse gnome-session-binary[1891]: WARNING: Application 'org.gnome.SettingsDaemon.Color.desktop' failed to register before timeout
Oct 23 15:27:03 bad-horse gnome-session-binary[1891]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Oct 23 15:27:03 bad-horse kernel: rfkill: input handler enabled
Oct 23 15:27:03 bad-horse gnome-shell[1999]: gnome-shell: Fatal IO error 0 (Success) on X server :1.
```
Just had the same thing happen to me, on recently-updated Ubuntu 18.04.
Here are my journalctl entries from the crash (including the one from 2 seconds before in case they're relevant):
``` 1891]: gnome-session- binary[ 1891]: WARNING: Application 'org.gnome. SettingsDaemon. Color.desktop' failed to register before timeout 1891]: gnome-session- binary[ 1891]: CRITICAL: We failed, but the fail whale is dead. Sorry.... binary[ 1891]: Unrecoverable failure in required component org.gnome. SettingsDaemon. Color.desktop binary[ 1891]: WARNING: Application 'org.gnome. SettingsDaemon. Color.desktop' failed to register before timeout binary[ 1891]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Oct 23 15:27:01 bad-horse code.desktop[3875]: [main 3:27:01 PM] update#setState idle
Oct 23 15:27:01 bad-horse code.desktop[3875]: bash: cannot set terminal process group (-1): Inappropriate ioctl for device
Oct 23 15:27:01 bad-horse code.desktop[3875]: bash: no job control in this shell
Oct 23 15:27:03 bad-horse gnome-session[
Oct 23 15:27:03 bad-horse gnome-session[
Oct 23 15:27:03 bad-horse gnome-session-
Oct 23 15:27:03 bad-horse gnome-session-
Oct 23 15:27:03 bad-horse gnome-session-
Oct 23 15:27:03 bad-horse kernel: rfkill: input handler enabled
Oct 23 15:27:03 bad-horse gnome-shell[1999]: gnome-shell: Fatal IO error 0 (Success) on X server :1.
```