eval #9 evaluation failed

evaluation failed: nix-eval-jobs (nixosConfigurations) exited with status Some(1)
stderr:
warning: unknown setting 'allowed-users'
warning: unknown setting 'trusted-users'
evaluation warning: root profile: You have set either `nixpkgs.config` or `nixpkgs.overlays` while using `home-manager.useGlobalPkgs`.
                    This will soon not be possible. Please remove all `nixpkgs` options when using `home-manager.useGlobalPkgs`.
evaluation warning: root profile: You have set either `nixpkgs.config` or `nixpkgs.overlays` while using `home-manager.useGlobalPkgs`.
                    This will soon not be possible. Please remove all `nixpkgs` options when using `home-manager.useGlobalPkgs`.
error:
       … while calling the 'head' builtin
         at «github:nixos/nixpkgs/a0374025a863d007d98e3297f6aa46cc3141c2f0?narHash=sha256-9mUW6gNwoN2SWc/l0fW4svPNOulXLl8ijqKyeSOGgJE%3D»/lib/attrsets.nix:1712:13:
         1711|           if length values == 1 || pred here (elemAt values 1) (head values) then
         1712|             head values
             |             ^
         1713|           else

       … while evaluating the attribute 'value'
         at «github:nixos/nixpkgs/a0374025a863d007d98e3297f6aa46cc3141c2f0?narHash=sha256-9mUW6gNwoN2SWc/l0fW4svPNOulXLl8ijqKyeSOGgJE%3D»/lib/modules.nix:1167:7:
         1166|     // {
         1167|       value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |       ^
         1168|       inherit (res.defsFinal') highestPrio;

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

       … while evaluating definitions from `/nix/store/9figz32vbiblaw5x3li1hc8q9qwlwf27-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `system.systemBuilderArgs':

       … while evaluating definitions from `/nix/store/9figz32vbiblaw5x3li1hc8q9qwlwf27-source/nixos/modules/system/activation/top-level.nix':

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

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

       error: The option `system.build.installBootLoader' is defined multiple times while it's expected to be unique.
       Only one bootloader can be enabled at a time. This requirement has not
       been checked until NixOS 22.05. Earlier versions defaulted to the last
       definition. Change your configuration to enable only one bootloader.

       Definition values:
       - In `/nix/store/9figz32vbiblaw5x3li1hc8q9qwlwf27-source/nixos/modules/system/boot/loader/generic-extlinux-compatible': <derivation install-extlinux-conf.sh>
       - In `/nix/store/9figz32vbiblaw5x3li1hc8q9qwlwf27-source/nixos/modules/system/boot/loader/grub/grub.nix': <derivation install-grub.sh>
       Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.
remote: Enumerating objects: 7, done.        
remote: Counting objects:  14% (1/7)        
remote: Counting objects:  28% (2/7)        
remote: Counting objects:  42% (3/7)        
remote: Counting objects:  57% (4/7)        
remote: Counting objects:  71% (5/7)        
remote: Counting objects:  85% (6/7)        
remote: Counting objects: 100% (7/7)        
remote: Counting objects: 100% (7/7), done.        
remote: Compressing objects:  16% (1/6)        
remote: Compressing objects:  33% (2/6)        
remote: Compressing objects:  50% (3/6)        
remote: Compressing objects:  66% (4/6)        
remote: Compressing objects:  83% (5/6)        
remote: Compressing objects: 100% (6/6)        
remote: Compressing objects: 100% (6/6), done.        
remote: Total 7 (delta 0), reused 0 (delta 0), pack-reused 0 (from 0)        
From https://git.kun.is/pim/georguessr
 * branch            e24baeee324df18fe0735bb536a19f51d68f0e72 -> FETCH_HEAD
copying path '/nix/store/gw7fxaw8z5szcqlzyzcnrshzi60zj664-source' from 'https://ncps.kun.is'...
evaluation warning: pim profile: You have set either `nixpkgs.config` or `nixpkgs.overlays` while using `home-manager.useGlobalPkgs`.
                    This will soon not be possible. Please remove all `nixpkgs` options when using `home-manager.useGlobalPkgs`.
evaluation warning: root profile: You have set either `nixpkgs.config` or `nixpkgs.overlays` while using `home-manager.useGlobalPkgs`.
                    This will soon not be possible. Please remove all `nixpkgs` options when using `home-manager.useGlobalPkgs`.
evaluation warning: A legacy Nextcloud install (from before NixOS 26.05) may be installed.

                    After nextcloud32 is installed successfully, you can safely upgrade
                    to 33. The latest version available is Nextcloud33.

                    Please note that Nextcloud doesn't support upgrades across multiple major versions
                    (i.e. an upgrade from 16 is possible to 17, but not 16 to 18).

                    The package can be upgraded by explicitly declaring the service-option
                    `services.nextcloud.package`.
error: while reading result for attrPath 'roeland', evaluation worker got killed by SIGKILL, maybe memory limit reached?