Are there any quick things to check if time syncing is wacky on my instance?

Chrony keeps whining that something else might be changing the time

And it's just enough that I can't use SSH to connect to other hosts from the WSL instance (AFAICT)

Just rebuilt using latest changes from the repo today

Neither did I
Then I started seeing this in the journal on the device I was trying to connect to

<DATE> <HOSTNAME> sshd[<PID>]: drop connection #0 from [<REMOTE_IP>]:<REMOTE_PORT> on [<HOST_IP>]:22 penalty: exceeded LoginGraceTime

That being said...

My skew is only ~13s on the WSL instance

And based on the sshd config's commented out defaults on the other device, that period should be 2m

So perhaps it is unrelated, after all 🤔

I have trouble updating my system. Can somebody tell me, what is going on? Couldn't find an issue on github for that.

$ cat $(nix-instantiate --find-file nixpkgs)/.git-revision
e99366c665bdd53b7b500ccdc5226675cfc51f45

sudo nixos-rebuild switch --upgrade
unpacking 2 channels...
unpacking 2 channels...
building the system configuration...
evaluation warning: The option `hardware.opengl.enable' defined in `/nix/store/cynw1547shxm7c3j7qi5jk6bgmvjwz3x-nixos-wsl/nixos-wsl/modules/wsl-distro.nix' has been renamed
to `hardware.graphics.enable'.
error:
       … while calling the 'head' builtin
         at /nix/store/jjmyd2jxv1s7awbjrxhysvr3z2filg7n-nixos/nixos/lib/attrsets.nix:1696:13:
         1695|           if length values == 1 || pred here (elemAt values 1) (head values) then
         1696|             head values
             |             ^
         1697|           else

       … while evaluating the attribute 'value'
         at /nix/store/jjmyd2jxv1s7awbjrxhysvr3z2filg7n-nixos/nixos/lib/modules.nix:1118:7:
         1117|     // {
         1118|       value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |       ^
         1119|       inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/jjmyd2jxv1s7awbjrxhysvr3z2filg7n-nixos/nixos/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `system.systemBuilderArgs':

       … while evaluating definitions from `/nix/store/jjmyd2jxv1s7awbjrxhysvr3z2filg7n-nixos/nixos/nixos/modules/system/activation/activatable-system.nix':

       … while evaluating the option `system.activationScripts.populateBin.text':

       … while evaluating definitions from `/nix/store/cynw1547shxm7c3j7qi5jk6bgmvjwz3x-nixos-wsl/nixos-wsl/modules/wsl-distro.nix':

       … while evaluating the option `wsl.extraBin."[definition 2-entry 1]".src':

       … while evaluating definitions from `/nix/store/cynw1547shxm7c3j7qi5jk6bgmvjwz3x-nixos-wsl/nixos-wsl/modules/recovery.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: attribute 'nixos-enter' missing
       at /nix/store/cynw1547shxm7c3j7qi5jk6bgmvjwz3x-nixos-wsl/nixos-wsl/modules/recovery.nix:3:18:
            2| let
            3|   nixos-enter' = config.system.build.nixos-enter.overrideAttrs (_: {
             |                  ^
            4|     runtimeShell = "/bin/bash";
Command 'nix-build '<nixpkgs/nixos>' --attr config.system.build.toplevel --no-out-link' returned non-zero exit status 1.

Ah, no. Let me fix that and get back to you:

       error:
       Failed assertions:
       - The option definition `wsl.nativeSystemd' in `/etc/nixos/configuration.nix' no longer has any effect; please remove it.
       Native systemd is now always enabled as support for syschdemd has been removed
Command 'nix-build '<nixpkgs/nixos>' --attr config.system.build.toplevel --no-out-link' returned non-zero exit status 1.

restarting systemd...
Error: Failed to reset failed units

Caused by:
    Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

[process exited with code 1 (0x00000001)]
You can now close this terminal with Ctrl+D, or press Enter to restart.

/mnt/wslg/distro/bin/nixos-wsl-recovery: /mnt/wslg/distro//nix/store/dih2wyarm9lyl006gnv7d869npkbgp6h-nixos-enter/bin/nixos-enter: /nix/store/ciarnmsx8lvsrmdbjddpmx0pqjrm8imb-bash-5.3p3/bin/bash: bad interpreter: No such file or directory
/mnt/wslg/distro/bin/nixos-wsl-recovery: line 9: /mnt/wslg/distro//nix/store/dih2wyarm9lyl006gnv7d869npkbgp6h-nixos-enter/bin/nixos-enter: Success

restarting systemd...
Error: Failed to reset failed units

Caused by:
    Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

[process exited with code 1 (0x00000001)]
You can now close this terminal with Ctrl+D, or press Enter to restart.

/mnt/wslg/distro/bin/nixos-wsl-recovery: /mnt/wslg/distro//nix/store/dih2wyarm9lyl006gnv7d869npkbgp6h-nixos-enter/bin/nixos-enter: /nix/store/ciarnmsx8lvsrmdbjddpmx0pqjrm8imb-bash-5.3p3/bin/bash: bad interpreter: No such file or directory
/mnt/wslg/distro/bin/nixos-wsl-recovery: line 9: /mnt/wslg/distro//nix/store/dih2wyarm9lyl006gnv7d869npkbgp6h-nixos-enter/bin/nixos-enter: Success