copying path '/nix/store/zz9384x4kbwanpviwwm5lkh3cvnh4nix-libXinerama-1.1.5' from 'https://cache.nixos.org'...
copying path '/nix/store/8184ny27aj1699ja97qj2xq9xm5vb27l-libmysofa-1.3.2' from 'https://cache.nixos.org'...
copying path '/nix/store/gamr55a2aczzhgb1qnws8yf3zvrrj8zm-libsamplerate-0.2.2' from 'https://cache.nixos.org'...
copying path '/nix/store/05i0h25vhfv681hjwxmkg77qrgz94mr6-libusb-1.0.27' from 'https://cache.nixos.org'...
copying path '/nix/store/bn7lzwv33hvlxx4xdd96fz2a1w53nx5v-sbc-2.0' from 'https://cache.nixos.org'...
copying path '/nix/store/rsbkmkbck6xi9xskp0yhmb8rm3zr8l2z-soxr-0.1.3' from 'https://cache.nixos.org'...
copying path '/nix/store/jwi3dpgv4xn6830q08vcdhph6h8n3zrr-vulkan-loader-1.3.296.0' from 'https://cache.nixos.org'...
copying path '/nix/store/5i36x7wc7zs7z4q6gc1ksggyvwdv794q-webrtc-audio-processing-1.3' from 'https://cache.nixos.org'...
copying path '/nix/store/ziqnk17xikg73dfrwnyi2jd593xlxza9-fontconfig-2.15.0' from 'https://cache.nixos.org'...
copying path '/nix/store/7hx61vzf2mzwyj1fyf7n76gq1h1gyc4s-cjson-1.7.18' from 'https://cache.nixos.org'...
copying path '/nix/store/54s8ad609i5p99bc84lak763jyk2rysd-json-c-0.17' from 'https://cache.nixos.org'...
copying path '/nix/store/kabp82iq5p0l8zidw9ch1mrpq431g6jd-libaom-3.10.0' from 'https://cache.nixos.org'...
copying path '/nix/store/rs7cwkas5scwa4h01giwgw4jj8fr1ani-libbpf-1.4.7' from 'https://cache.nixos.org'...
copying path '/nix/store/ydzprlbx0fz3qx2yynvg0nf1l96z8xim-libcbor-0.11.0' from 'https://cache.nixos.org'...
copying path '/nix/store/kyqsa10k8g0450hycphpng9gj151qsc6-celt-0.11.3' from 'https://cache.nixos.org'...
copying path '/nix/store/9nk7ym5kg8rf3v3rxw7yxfbckk120h99-flac-1.4.3' from 'https://cache.nixos.org'...
copying path '/nix/store/f793fk33jm37in4jz88cwqp68fsf7lp9-libvisual-0.4.1' from 'https://cache.nixos.org'...
copying path '/nix/store/zgcaxpjipkvdz3185gfb8ba63xw1sv4n-libwebp-1.4.0' from 'https://cache.nixos.org'...
copying path '/nix/store/6w1mg9kfj0kmvdppgib8dzgp5rwsm9l2-mbedtls-3.6.2' from 'https://cache.nixos.org'...
copying path '/nix/store/7za1pyjxsrdl1sr4g3sfy7m8ii5v9rxl-cryptsetup-2.7.5' from 'https://cache.nixos.org'...
copying path '/nix/store/c2raafcb0l3q3jyh2jd665xvq026vkpl-p11-kit-0.25.5' from 'https://cache.nixos.org'...
copying path '/nix/store/w9qf9xzv562nhm0wx5lwk3z88x4l6q8z-libfido2-1.15.0' from 'https://cache.nixos.org'...
copying path '/nix/store/d5ydp12byd21xdp16g3glip6hwkki2kc-sord-0.16.16' from 'https://cache.nixos.org'...
copying path '/nix/store/3fz15gf0crj7ni61szar73ksmyg814d0-srt-1.5.3' from 'https://cache.nixos.org'...
copying path '/nix/store/lwzkzl5cd2adaidlzk6bv99p3dpkwx5f-spdlog-1.14.1' from 'https://cache.nixos.org'...
copying path '/nix/store/9ipzdib704g9mgfgc84p27vvi3khmknb-svt-av1-2.2.1' from 'https://cache.nixos.org'...
copying path '/nix/store/3zykdvv4pvs0k11z0bgc96wfjnjjzm4p-systemd-minimal-256.8' from 'https://cache.nixos.org'...
copying path '/nix/store/s0xfjkpz3d9km7729bvb7x965kzrgkdh-lilv-0.24.24' from 'https://cache.nixos.org'...
copying path '/nix/store/qhr5ish7bi0q1f504ja88vz66d3w5b17-tremor-unstable-2018-03-16' from 'https://cache.nixos.org'...
copying path '/nix/store/jifnfpg9cn7kxyvkrdrlw6a267h4jlj1-v4l-utils-1.24.1' from 'https://cache.nixos.org'...
copying path '/nix/store/bmh1b6hm3qnzm5s0drpimp5ja51f7a71-x265-3.6' from 'https://cache.nixos.org'...
copying path '/nix/store/xk1z1b27hck084x12pn24rk526arwwlz-libwebp-1.4.0' from 'https://cache.nixos.org'...
copying path '/nix/store/mmwxq59ks0h0yz731sl55f7ng0jxrw0i-openjpeg-2.5.2' from 'https://cache.nixos.org'...
copying path '/nix/store/3abwqv1a1bdycmgaydzfw3a0qzxwk8am-systemd-256.8' from 'https://cache.nixos.org'...
copying path '/nix/store/p9by83s8h6nrmvmimpl8zkyjn5dvwjyl-ffmpeg-headless-7.1-lib' from 'https://cache.nixos.org'...
copying path '/nix/store/azmkl4glrpk52az8pbgy5h68xwqaix8l-gtk-layer-shell-0.9.0' from 'https://cache.nixos.org'...
copying path '/nix/store/fi8q32kj3m5hn1fznfif13092v7czx01-gtkmm-3.24.9' from 'https://cache.nixos.org'...
copying path '/nix/store/384b431zy94vsf2chzq8yi13kd44lrm4-libdbusmenu-gtk3-16.04.0' from 'https://cache.nixos.org'...
copying path '/nix/store/hyil74vaa7lp4n65qp08kfgp51hqxgwb-pipewire-1.2.6' from 'https://cache.nixos.org'...
copying path '/nix/store/mnl63v4lpggalz091sbhfxcy3cqffr6f-SDL2-2.30.6' from 'https://cache.nixos.org'...
copying path '/nix/store/ng9wm7zqgxlymgqfx455b6i119sc3rdq-wireplumber-0.5.7' from 'https://cache.nixos.org'...
copying path '/nix/store/fdsjj3qa9qc3zzyzrqafvl12skx18hby-waybar-0.11.0' from 'https://cache.nixos.org'...
unpacking 'github:oxalica/rust-overlay/a0b81d4fa349d9af1765b0f0b4a899c13776f706?narHash=sha256-IKrk7RL%2BQ/2NC6%2BQl6dwwCNZI6T6JH2grTdJaVWHF0A%3D' into the Git cache...
error:
       … while calling the 'head' builtin
         at /nix/store/rfidw50bwmp9by3zlc17jgfwv2zp4896-source/lib/attrsets.nix:1574:11:
         1573|         || pred here (elemAt values 1) (head values) then
         1574|           head values
             |           ^
         1575|         else

       … while evaluating the attribute 'value'
         at /nix/store/rfidw50bwmp9by3zlc17jgfwv2zp4896-source/lib/modules.nix:846:9:
          845|     in warnDeprecation opt //
          846|       { value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |         ^
          847|         inherit (res.defsFinal') highestPrio;

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

       … while evaluating definitions from `/nix/store/rfidw50bwmp9by3zlc17jgfwv2zp4896-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `system.systemBuilderArgs':

       … while evaluating definitions from `/nix/store/rfidw50bwmp9by3zlc17jgfwv2zp4896-source/nixos/modules/system/activation/activatable-system.nix':

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

       … while evaluating definitions from `/nix/store/rfidw50bwmp9by3zlc17jgfwv2zp4896-source/nixos/modules/system/etc/etc-activation.nix':

       … while evaluating definitions from `/nix/store/rfidw50bwmp9by3zlc17jgfwv2zp4896-source/nixos/modules/system/etc/etc.nix':

       … while evaluating the option `environment.etc.dbus-1.source':

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

       error: Package ‘Affinity Photo 2’ in /nix/store/kxvw2dp30hgaks4pmwvsc06rx356y676-source/scripts.nix:52 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: When using `nix shell`, `nix build`, `nix develop`, etc with a flake,
                then pass `--impure` in order to allow use of environment variables.

       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) [
             "Affinity Photo 2"
           ];
         }

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