Build failure: CAGE

[DrTeagle]

Nixpkgs version

• Unstable (25.05)

Steps to reproduce

1. try to build cage

Can Hydra reproduce this build failure?

No, Hydra cannot reproduce this build failure.

Link to Hydra build job

No response

Relevant log output

while calling the 'head' builtin
         at /nix/store/lxjv9rkc44chy0njfch4ianbaxkfx7f4-source/lib/attrsets.nix:1534:13:
         1533|           if length values == 1 || pred here (elemAt values 1) (head values) then
         1534|             head values
             |             ^
         1535|           else

       … while evaluating the attribute 'value'
         at /nix/store/lxjv9rkc44chy0njfch4ianbaxkfx7f4-source/lib/modules.nix:1084:7:
         1083|     // {
         1084|       value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |       ^
         1085|       inherit (res.defsFinal') highestPrio;

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

       … while evaluating definitions from `/nix/store/lxjv9rkc44chy0njfch4ianbaxkfx7f4-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `warnings':

       … while evaluating definitions from `/nix/store/fyf9n8r559q75dl8w2zxspmw00w5vb4g-source/modules/regreet/nixos.nix':

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

       error: function 'anonymous lambda' called with unexpected argument 'wlroots'
       at /nix/store/lxjv9rkc44chy0njfch4ianbaxkfx7f4-source/pkgs/by-name/ca/cage/package.nix:1:1:
            1| {
             | ^
            2|   lib,
┏━ 1 Errors:
 ⋮
┃        … while evaluating the option `system.build.toplevel':
┃
┃        … while evaluating definitions from `/nix/store/lxjv9rkc44chy0njfch4ianbaxkfx7f4-source/nixos…
┃
┃        … while evaluating the option `warnings':
┃
┃        … while evaluating definitions from `/nix/store/fyf9n8r559q75dl8w2zxspmw00w5vb4g-source/modul…
┃
┃        (stack trace truncated; use '--show-trace' to show the full, detailed trace)
┃
┃        error: function 'anonymous lambda' called with unexpected argument 'wlroots'
┃        at /nix/store/lxjv9rkc44chy0njfch4ianbaxkfx7f4-source/pkgs/by-name/ca/cage/package.nix:1:1:
┃             1| {
┃              | ^
┃             2|   lib,
┣━━━
┗━ ∑ ⚠ Exited with 1 errors reported by nix at 00:59:49 after 7s
Error:
   0: Command exited with status Exited(1)

Additional context

this appears as nixos-rebuild switch is first running, so this might not be the correct package

System metadata

• system: "x86_64-linux"
• host os: Linux 6.14.2, NixOS, 25.05 (Warbler), 25.05.20250417.b024ced
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.28.1
• nixpkgs: /nix/store/isfbldda5j8j6x3nbv1zim0c0dpf90v8-source

Notify maintainers

@primeos

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[DrTeagle]

I was on unstable, tried main branch as hydra cannot reproduce failure, still see this error

[fufexan]

Post your configuration. It has something to do with your regreet module.

[DrTeagle]

ok:
https://github.com/DockterTeagle/myNixOS
regreet is in system/packages/per-system/GUI-ENABLED/shared/Environments/default.nix

[DrTeagle]

looking back at it now, it is in dire need of clarification on where things are and where they should be, but I am not maintaining anything of import, so forgive the mess

[DrTeagle]

I agree it is something to do with my regreet config, but Ive tried everything, removing it completly works and will build, but isnt desired. If I comment everything out but programs.regreet.enable = true it still fails to build with the same eror

[DrTeagle]

Im following along regreet's officail repo, and I would like help with doing the hyprland part on nix:
https://github.com/rharish101/ReGreet#set-as-default-session
how do I do this part, where I make a separate hyprland config file just for greetd?

[DrTeagle]

looking at the checkmarks I realize this is a skill issue, where should I take this so it is not cluttering the repo's issues?

[DrTeagle]

it seems this was due to nixpkgs-wayland actually as an overlay, I think it might be fixed now, I see the problems with overlays as well now