error: 'nix-store --serve' protocol mismatch from <remote>

[TornaxO7]

Hello!
If I'm executing

deploy .#laptop

then I'm getting

🚀 ℹ [deploy] [INFO] Building profile `system` for node `laptop`
🚀 ℹ [deploy] [INFO] Copying profile `system` to node `laptop`
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8): No such file or directory
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8): No such file or directory
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8): No such file or directory
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8): No such file or directory
error: 'nix-store --serve' protocol mismatch from 'tornax@laptop', got '/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8): No such file or directory
       /nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8): No such file or directory
       /nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8)
       /nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8)
       �RT'
🚀 ❌ [deploy] [ERROR] Failed to push profile: Nix copy command resulted in a bad exit code: Some(1)

Here's the deployment config:

 deploy = {
      nodes = {
        laptop = {
          hostname = "laptop";
          profiles.system = {
            user = "root";
            path = inputs.deploy-rs.lib.${self.nixosConfigurations.laptop.pkgs.system}.activate.nixos self.nixosConfigurations.laptop;
          };
        };
      };
    };

[rvem]

Which nix versions do you have on laptop and on the machine you're deploying from?

[TornaxO7]

host: laptop

nix (Nix) 2.18.1

host: pc (where I'm calling deploy)

nix (Nix) 2.18.1

[rvem]

Hmm, I don't think that's an issue with deploy-rs per se. From what I can see, nix copy --to ssh://tornax@laptop fails with the aforementioned error, though, I'm not sure what may cause protocol mismatch in case when nix versions are the same 😕.

Can you try to nix copy something to the laptop without deploy-rs and check if this reproduces?

[TornaxO7]

Looks like that you're right.
If I execute nix copy --to ssh:tornax@laptop nixpkgs#hello then I'm getting

/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8): No such file or directory
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8): No such file or directory
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8): No such file or directory
/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8): No such file or directory
error: 'nix-store --serve' protocol mismatch from 'tornax@laptop', got '/nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change local
e (de_DE.UTF-8): No such file or directory
       /nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8): No such file or directory
       /nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 20: warning: setlocale: LC_NUMERIC: cannot change locale (de_DE.UTF-8)
       /nix/store/3h8pyqvrq9l4m2pz95rshnrd79508m7l-set-environment: line 23: warning: setlocale: LC_TIME: cannot change locale (de_DE.UTF-8)
       �RT'

[TornaxO7]

aw man, why is this happening?! 😢

But thank you for help your help! c(^-^)c I'll ask on the nixos discourse then.

[TornaxO7]

Wait, I found the issue!
I'm using tailscale ssh and if I disable it, nix copy works! Looks like that this is an issue from tailscale :(