Here are the journalctl results. Note that I tried to re-run it last night with slightly different parameters:
It crashed at just before 8AM this morning (that's the timestamp of the last update in debug.log).
So, first, I looked at the most recent journalctl logs for just today to see what happened at that time. Here's just before, during and after:
$ sudo journalctl -p 4 -x -b -0
Jul 09 14:08:33 ThinkPad kernel: x86/cpu: VMX (outside TXT)>
Jul 09 14:08:33 ThinkPad kernel: MDS CPU bug present and SM>
Jul 09 14:08:33 ThinkPad kernel: #2
Jul 09 14:08:33 ThinkPad kernel: #3
Jul 09 14:08:33 ThinkPad kernel: ENERGY_PERF_BIAS: Set to '>
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: pnp 00:00: disabling [mem >
Jul 09 14:08:34 ThinkPad kernel: device-mapper: core: CONFI>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: EISA: Can>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: platform eisa.0: Cannot al>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: ima: Error Communicating t>
Jul 09 14:08:34 ThinkPad kernel: acpi PNP0C14:01: duplicate>
Jul 09 14:08:34 ThinkPad kernel: ACPI Warning: SystemIO ran>
Jul 09 14:08:34 ThinkPad kernel: ACPI Warning: SystemIO ran>
Jul 09 14:08:34 ThinkPad kernel: ACPI Warning: SystemIO ran>
Jul 09 14:08:34 ThinkPad kernel: ACPI Warning: SystemIO ran>
Jul 09 14:08:34 ThinkPad kernel: lpc_ich: Resource conflict>
Jul 09 14:08:34 ThinkPad kernel: ata1.00: ATA Identify Devi>
Jul 09 14:08:34 ThinkPad kernel: ata1.00: ATA Identify Devi>
Jul 09 14:08:34 ThinkPad kernel: mtd device must be supplie>
Jul 09 14:08:40 ThinkPad kernel: iwlwifi 0000:03:00.0: can'>
Jul 09 14:08:40 ThinkPad kernel: at24 0-0050: supply vcc no>
Jul 09 14:08:40 ThinkPad systemd-udevd[342]: sda: Process '>
Jul 09 14:08:42 ThinkPad systemd-udevd[355]: video4linux: P>
Jul 09 14:08:42 ThinkPad systemd-udevd[355]: video4linux: P>
Jul 09 14:08:44 ThinkPad systemd-udevd[348]: sda2: Process >
Jul 09 14:08:44 ThinkPad kernel: mtd device must be supplie>
Jul 09 14:08:44 ThinkPad systemd-udevd[334]: sda1: Process >
Jul 09 14:08:49 ThinkPad kernel: mtd device must be supplie>
Jul 09 14:09:00 ThinkPad udisksd[786]: failed to load modul>
Jul 09 14:09:01 ThinkPad udisksd[786]: Failed to load the '>
Jul 09 14:09:07 ThinkPad kernel: kauditd_printk_skb: 28 cal>
Jul 09 14:09:08 ThinkPad gdm-autologin][931]: gkr-pam: no p>
Jul 09 14:09:12 ThinkPad systemd[1]: kerneloops.service: Fo>
Jul 09 14:09:12 ThinkPad systemd[1]: This usually indicates>
Jul 09 14:09:27 ThinkPad gnome-session-binary[1188]: GnomeD>
Jul 09 14:09:27 ThinkPad systemd[975]: app-gnome-gnome\x2dk>
Jul 09 14:09:27 ThinkPad systemd[975]: app-gnome-gnome\x2dk>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit UNIT has entered the 'failed' state with result 'resources'.
Jul 09 14:09:27 ThinkPad systemd[975]: Failed to start Appl>
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit UNIT has finished with a failure.
░░
░░ The job identifier is 229 and the job result is failed.
Jul 09 14:09:27 ThinkPad systemd[975]: app-gnome-gnome\x2dk>
Jul 09 14:09:27 ThinkPad systemd[975]: app-gnome-gnome\x2dk>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit UNIT has entered the 'failed' state with result 'resources'.
Jul 09 14:09:27 ThinkPad systemd[975]: Failed to start Appl>
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit UNIT has finished with a failure.
░░
░░ The job identifier is 225 and the job result is failed.
Jul 09 14:09:27 ThinkPad systemd[975]: org.gnome.Shell@x11.>
Jul 09 14:09:39 ThinkPad snapd-desktop-i[1036]: cannot open>
Jul 09 14:09:40 ThinkPad systemd[975]: snap.snapd-desktop-i>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit UNIT has entered the 'failed' state with result 'exit-code'.
Jul 09 14:09:40 ThinkPad snapd-desktop-i[1288]: cannot open>
Jul 09 14:09:40 ThinkPad systemd[975]: snap.snapd-desktop-i>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit UNIT has entered the 'failed' state with result 'exit-code'.
Jul 09 14:09:54 ThinkPad at-spi-dbus-bus.desktop[1222]: dbu>
Jul 09 14:09:54 ThinkPad systemd[975]: Dependency failed fo>
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit UNIT has finished with a failure.
░░
░░ The job identifier is 184 and the job result is dependency.
Jul 09 14:09:54 ThinkPad at-spi-dbus-bus.desktop[1222]: dbu>
Jul 09 14:09:54 ThinkPad at-spi2-registr[1545]: Failed to r>
Jul 09 14:09:54 ThinkPad at-spi2-registr[1545]: Unable to r>
Jul 09 14:09:55 ThinkPad tracker-extract[1037]: Could not c>
Jul 09 14:09:56 ThinkPad systemd[975]: tracker-extract-3.se>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit UNIT has entered the 'failed' state with result 'exit-code'.
Jul 09 14:09:56 ThinkPad systemd[975]: Failed to start Trac>
░░ Subject: A start job for unit UNIT has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit UNIT has finished with a failure.
░░
░░ The job identifier is 25 and the job result is failed.
Jul 09 14:10:03 ThinkPad gsd-media-keys[1563]: Failed to gr>
Jul 09 14:10:03 ThinkPad gsd-media-keys[1563]: Failed to gr>
Jul 09 14:10:38 ThinkPad org.freedesktop.FileManager1[1882]>
Jul 09 14:10:42 ThinkPad gnome-shell[1214]: ATK Bridge is d>
Jul 09 14:11:01 ThinkPad
[email protected][12>
Jul 09 14:11:02 ThinkPad
[email protected][12>
Jul 09 19:15:57 ThinkPad systemd[1]: fwupd-refresh.service:>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit fwupd-refresh.service has entered the 'failed' state with result 'e>
Jul 09 19:15:57 ThinkPad systemd[1]: Failed to start Refres>
░░ Subject: A start job for unit fwupd-refresh.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit fwupd-refresh.service has finished with a failure.
░░
░░ The job identifier is 3062 and the job result is failed.
Jul 10 01:17:37 ThinkPad gnome-shell[1214]: clutter_actor_i>
Jul 10 07:29:43 ThinkPad gnome-shell[1214]: meta_window_set>
Jul 10 07:41:16 ThinkPad gnome-shell[1214]: clutter_actor_s>
Jul 10 07:41:16 ThinkPad gnome-shell[1214]: ../clutter/clut>
Jul 10 07:41:16 ThinkPad gnome-shell[1214]: ../clutter/clut>
Jul 10 07:45:45 ThinkPad nautilus[1532]: g_object_ref: asse>
Jul 10 07:45:45 ThinkPad nautilus[1532]: g_object_unref: as>
Jul 10 07:46:43 ThinkPad gnome-shell[1214]: Could not creat>
Jul 10 07:52:34 ThinkPad gnome-shell[1214]: meta_window_set>
Jul 10 08:15:09 ThinkPad gnome-shell[1214]: meta_window_set>
Jul 10 08:29:41 ThinkPad gnome-shell[1214]: meta_window_set>
Jul 10 08:33:43 ThinkPad gedit[4510]: Error querying file i>
Jul 10 12:01:42 ThinkPad systemd[1]: fwupd-refresh.service:>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit fwupd-refresh.service has entered the 'failed' state with result 'e>
Jul 10 12:01:42 ThinkPad systemd[1]: Failed to start Refres>
░░ Subject: A start job for unit fwupd-refresh.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit fwupd-refresh.service has finished with a failure.
░░
░░ The job identifier is 7345 and the job result is failed.
Jul 11 02:45:43 ThinkPad systemd[1]: fwupd-refresh.service:>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit fwupd-refresh.service has entered the 'failed' state with result 'e>
Jul 11 02:45:43 ThinkPad systemd[1]: Failed to start Refres>
░░ Subject: A start job for unit fwupd-refresh.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit fwupd-refresh.service has finished with a failure.
░░
░░ The job identifier is 11391 and the job result is failed.
Jul 11 07:48:14 ThinkPad io.snapcraft.Settings[8609]: userd>
Jul 11 14:31:40 ThinkPad systemd[1]: fwupd-refresh.service:>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit fwupd-refresh.service has entered the 'failed' state with result 'e>
Jul 11 14:31:40 ThinkPad systemd[1]: Failed to start Refres>
░░ Subject: A start job for unit fwupd-refresh.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit fwupd-refresh.service has finished with a failure.
░░
░░ The job identifier is 13567 and the job result is failed.
Jul 11 22:28:20 ThinkPad gedit[4510]: Error querying file i>
Jul 12 04:59:42 ThinkPad systemd[1]: fwupd-refresh.service:>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit fwupd-refresh.service has entered the 'failed' state with result 'e>
Jul 12 04:59:42 ThinkPad systemd[1]: Failed to start Refres>
░░ Subject: A start job for unit fwupd-refresh.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit fwupd-refresh.service has finished with a failure.
░░
░░ The job identifier is 16523 and the job result is failed.
Jul 12 06:09:38 ThinkPad systemd[1]: fwupd-refresh.service:>
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit fwupd-refresh.service has entered the 'failed' state with result 'e>
Jul 12 06:09:38 ThinkPad systemd[1]: Failed to start Refres>
░░ Subject: A start job for unit fwupd-refresh.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit fwupd-refresh.service has finished with a failure.
░░
░░ The job identifier is 16833 and the job result is failed.
Jul 12 09:11:19 ThinkPad update-notifier[1942]: gtk_widget_>
Jul 12 09:11:19 ThinkPad update-notifier[1942]: gtk_widget_>
Jul 12 11:15:34 ThinkPad kernel: unchecked MSR access error>
Jul 12 11:15:36 ThinkPad kernel: Call Trace:
Jul 12 11:15:36 ThinkPad kernel:
Jul 12 11:15:36 ThinkPad kernel: ? __restore_processor_sta>
Jul 12 11:15:36 ThinkPad kernel: restore_processor_state+0>
Jul 12 11:15:36 ThinkPad kernel: x86_acpi_suspend_lowlevel>
Jul 12 11:15:36 ThinkPad kernel: acpi_suspend_enter+0x56/0>
Jul 12 11:15:36 ThinkPad kernel: suspend_enter+0x28f/0x340
Jul 12 11:15:36 ThinkPad kernel: suspend_devices_and_enter>
Jul 12 11:15:37 ThinkPad kernel: enter_state+0x1d2/0x430
Jul 12 11:15:37 ThinkPad kernel: pm_suspend+0x4e/0xc0
Jul 12 11:15:37 ThinkPad kernel: state_store+0x81/0xe0
Jul 12 11:15:37 ThinkPad kernel: kobj_attr_store+0x12/0x20
Jul 12 11:15:37 ThinkPad kernel: sysfs_kf_write+0x3e/0x50
Jul 12 11:15:37 ThinkPad kernel: kernfs_fop_write_iter+0x1>
Jul 12 11:15:37 ThinkPad kernel: new_sync_write+0x117/0x1a0
Jul 12 11:15:37 ThinkPad kernel: vfs_write+0x1cd/0x260
Jul 12 11:15:37 ThinkPad kernel: ksys_write+0x67/0xe0
Jul 12 11:15:37 ThinkPad kernel: __x64_sys_write+0x19/0x20
Jul 12 11:15:37 ThinkPad kernel: do_syscall_64+0x5c/0xc0
Jul 12 11:15:37 ThinkPad kernel: ? exit_to_user_mode_prepa>
Jul 12 11:15:37 ThinkPad kernel: ? syscall_exit_to_user_mo>
Jul 12 11:15:37 ThinkPad kernel: ? __x64_sys_sendmsg+0x1d/>
Jul 12 11:15:37 ThinkPad kernel: ? do_syscall_64+0x69/0xc0
Jul 12 11:15:37 ThinkPad kernel: ? do_user_addr_fault+0x1e>
Jul 12 11:15:37 ThinkPad kernel: ? exit_to_user_mode_prepa>
Jul 12 11:15:37 ThinkPad kernel: ? syscall_exit_to_user_mo>
Jul 12 11:15:37 ThinkPad kernel: ? __do_sys_gettid+0x1b/0x>
Jul 12 11:15:37 ThinkPad kernel: ? do_syscall_64+0x69/0xc0
Jul 12 11:15:37 ThinkPad kernel: ? asm_exc_page_fault+0x8/>
Jul 12 11:15:37 ThinkPad kernel: entry_SYSCALL_64_after_hw>
Jul 12 11:15:37 ThinkPad kernel: RIP: 0033:0x7f2d9e2e0a37
Jul 12 11:15:37 ThinkPad kernel: Code: 10 00 f7 d8 64 89 02>
Jul 12 11:15:37 ThinkPad kernel: RSP: 002b:00007fff8e6b6c28>
Jul 12 11:15:37 ThinkPad kernel: RAX: ffffffffffffffda RBX:>
Jul 12 11:15:37 ThinkPad kernel: RDX: 0000000000000004 RSI:>
Jul 12 11:15:37 ThinkPad kernel: RBP: 00007fff8e6b6ce0 R08:>
Jul 12 11:15:37 ThinkPad kernel: R10: 0000000000000000 R11:>
Jul 12 11:15:37 ThinkPad kernel: R13: 000055b1b723f2d0 R14:>
Jul 12 11:15:37 ThinkPad kernel: Jul 12 11:15:40 ThinkPad kernel: ACPI: \_SB_.PCI0.LPC_.EC__>
Jul 12 11:15:40 ThinkPad kernel: done.
Jul 12 11:15:40 ThinkPad kernel: ata1.00: ATA Identify Devi>
Jul 12 11:15:40 ThinkPad kernel: ata1.00: ATA Identify Devi>
Jul 12 11:15:49 ThinkPad gnome-shell[1214]: JS ERROR: Faile>
asyncCallback@r>
Jul 12 11:16:10 ThinkPad gnome-shell[1214]: JS ERROR: Faile>
asyncCallback@r>
Jul 12 11:16:18 ThinkPad
[email protected][12>
Jul 12 11:16:18 ThinkPad
[email protected][12>
Jul 12 11:40:39 ThinkPad gnome-shell[1214]: meta_window_set>