SOLVED: Mystery full system crashes

[neomic]

Sep 13 05:17:01 Neomic CRON[1155614]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Sep 13 05:18:13 Neomic systemd[1]: Starting Daily apt download activities...
Sep 13 05:18:14 Neomic systemd[1]: Starting Update APT News...
Sep 13 05:18:14 Neomic systemd[1]: Starting Update the local ESM caches...
Sep 13 05:18:14 Neomic systemd[1]: esm-cache.service: Deactivated successfully.
Sep 13 05:18:14 Neomic systemd[1]: Finished Update the local ESM caches.
Sep 13 05:18:15 Neomic dbus-daemon[1278]: [system] Activating via systemd: service name='org.freedesktop.PackageKit' unit='packagekit.service' requested by ':1.111' (uid=0 pid=1158111 comm="/usr/bin/gdbus call --system --dest org.freedeskto" label="unconfined")
Sep 13 05:18:15 Neomic systemd[1]: Starting PackageKit Daemon...
Sep 13 05:18:15 Neomic PackageKit: daemon start
Sep 13 05:18:15 Neomic dbus-daemon[1278]: [system] Successfully activated service 'org.freedesktop.PackageKit'
Sep 13 05:18:15 Neomic systemd[1]: Started PackageKit Daemon.
Sep 13 05:18:17 Neomic systemd[1]: apt-news.service: Deactivated successfully.
Sep 13 05:18:17 Neomic systemd[1]: Finished Update APT News.
Sep 13 05:18:27 Neomic Radarr[1414]: [Info] ImportListSyncService: No auto enabled lists, skipping sync and cleaning
Sep 13 05:18:29 Neomic systemd[1]: apt-daily.service: Deactivated successfully.
Sep 13 05:18:29 Neomic systemd[1]: Finished Daily apt download activities.
Sep 13 05:18:29 Neomic systemd[1]: apt-daily.service: Consumed 14.404s CPU time.
Sep 13 05:23:27 Neomic Radarr[1414]: [Info] ImportListSyncService: No auto enabled lists, skipping sync and cleaning
Sep 13 05:25:01 Neomic CRON[1167791]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1 1)
Sep 13 11:49:47 Neomic systemd-modules-load[392]: Inserted module 'lp'
Sep 13 11:49:47 Neomic systemd[1]: Starting Flush Journal to Persistent Storage...
Sep 13 11:49:47 Neomic systemd[1]: Finished Load/Save Random Seed.
Sep 13 11:49:47 Neomic systemd[1]: Condition check resulted in First Boot Complete being skipped.
Sep 13 11:49:47 Neomic systemd-modules-load[392]: Inserted module 'ppdev'
Sep 13 11:49:47 Neomic systemd-modules-load[392]: Inserted module 'parport_pc'
Sep 13 11:49:47 Neomic systemd[1]: Finished Create System Users.
Sep 13 11:49:47 Neomic systemd[1]: Starting Create Static Device Nodes in /dev...
Sep 13 11:49:47 Neomic systemd-modules-load[392]: Inserted module 'msr'
Sep 13 11:49:47 Neomic systemd[1]: Finished Load Kernel Modules.
Sep 13 11:49:47 Neomic systemd[1]: Starting Apply Kernel Variables...
Sep 13 11:49:47 Neomic systemd[1]: Finished Set the console keyboard layout.
Sep 13 11:49:47 Neomic systemd[1]: Finished Create Static Device Nodes in /dev.
Sep 13 11:49:47 Neomic systemd[1]: Reached target Preparation for Local File Systems.
Sep 13 11:49:47 Neomic systemd[1]: Mounting /mnt/media...

Is it that Cron job?