slack 0 -> 1
attrpath: slack
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[updateScript] 
[updateScript] Failed with exit code 1
this derivation will be built:
  /nix/store/ww8w0315m6i4hp4jl78aiq73pzqv6whb-packages.json.drv
building '/nix/store/ww8w0315m6i4hp4jl78aiq73pzqv6whb-packages.json.drv'...

Going to be running update for following packages:
 - slack-4.32.122

Press Enter key to continue...
Running update for:
 - slack-4.32.122: UPDATING ...
 - slack-4.32.122: ERROR

--- SHOWING ERROR LOG FOR slack-4.32.122 ----------------------

path is '/nix/store/yfg7qw7kybizgk79f5gzlbkh56yj2vf4-slack-desktop-4.33.73-amd64.deb'
path is '/nix/store/xg4a2zc7gnw1b7chsys19dl5axmsjn6l-Slack-4.33.73-macOS.dmg'
path is '/nix/store/08qq5qcqk46gjqkqab6rs32wg7wvryfn-Slack-4.33.73-macOS.dmg'
error:
       … in the condition of the assert statement

         at /var/cache/nixpkgs-update/worker/worktree/slack/lib/customisation.nix:222:17:

          221|     in commonAttrs // {
          222|       drvPath = assert condition; drv.drvPath;
             |                 ^
          223|       outPath = assert condition; drv.outPath;

       … while evaluating the attribute 'handled'

         at /var/cache/nixpkgs-update/worker/worktree/slack/pkgs/stdenv/generic/check-meta.nix:447:7:

          446|       # or, alternatively, just output a warning message.
          447|       handled =
             |       ^
          448|         {

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

       error: Package ‘slack-4.33.73’ in /var/cache/nixpkgs-update/worker/worktree/slack/pkgs/applications/networking/instant-messengers/slack/default.nix:82 has an unfree license (‘unfree’), refusing to evaluate.

       a) To temporarily allow unfree packages, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_UNFREE=1

        Note: For `nix shell`, `nix build`, `nix develop` or any other Nix 2.4+
        (Flake) command, `--impure` must be passed in order to read this
        environment variable.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowUnfree = true; }
       in configuration.nix to override this.

       Alternatively you can configure a predicate to allow specific packages:
         { nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
             "slack"
           ];
         }

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowUnfree = true; }
       to ~/.config/nixpkgs/config.nix.


--- SHOWING ERROR LOG FOR slack-4.32.122 ----------------------
The update script for slack-4.32.122 failed with exit code 1