gistfile1.txt

$ systemctl status update-nixos-20.03-small.service  | cat
● update-nixos-20.03-small.service - Update Channel nixos-20.03-small
   Loaded: loaded (/nix/store/aw1salnv99kjhv1x9ffcpr1gcjcllqxa-unit-update-nixos-20.03-small.service/update-nixos-20.03-small.service; linked; vendor preset: enabled)
   Active: inactive (dead) since Fri 2020-02-28 16:45:49 CET; 16min ago
  Process: 22505 ExecStart=/nix/store/r5sndqqxf7gb6z6x4b9m22882h97x0gz-unit-script-update-nixos-20.03-small-start (code=exited, status=0/SUCCESS)
 Main PID: 22505 (code=exited, status=0/SUCCESS)
       IP: 16.6K in, 3.7K out
      CPU: 1.414s

Feb 28 16:45:46 bastion systemd[1]: Starting Update Channel nixos-20.03-small...
Feb 28 16:45:49 bastion r5sndqqxf7gb6z6x4b9m22882h97x0gz-unit-script-update-nixos-20.03-small-start[22505]: release is ‘nixos-20.03beta334.87e543dad4c’ (build 113634579), eval is 1572890, prefix is nixos/20.03-small/nixos-20.03beta334.87e543dad4c, Git commit is 87e543dad4c3f6c92b0cef8fc2310dc4b4f32f41
Feb 28 16:45:49 bastion r5sndqqxf7gb6z6x4b9m22882h97x0gz-unit-script-update-nixos-20.03-small-start[22505]: channel would go back in time from nixos-20.03beta-453.af8fe52461c to nixos-20.03beta334.87e543dad4c, bailing out
Feb 28 16:45:49 bastion systemd[1]: update-nixos-20.03-small.service: Succeeded.
Feb 28 16:45:49 bastion systemd[1]: Started Update Channel nixos-20.03-small.
Feb 28 16:45:49 bastion systemd[1]: update-nixos-20.03-small.service: Consumed 1.414s CPU time, received 16.6K IP traffic, sent 3.7K IP traffic.