Output path comparison

nix-env failed:
error: access to absolute path '/var/lib/nix/store/hbqyqj82f8zidn1v1yad9iwzzs5n9dzm-source' is forbidden in restricted mode

       … while adding path '/var/lib/nix/store/hbqyqj82f8zidn1v1yad9iwzzs5n9dzm-source'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/build-support/nix-gitignore/default.nix:156:5:

          155|   gitignoreFilterSourcePure = filter: patterns: root:
          156|     filterSource (gitignoreFilterPure filter patterns root) root;
             |     ^
          157|

       … while calling 'gitignoreFilterSourcePure'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/build-support/nix-gitignore/default.nix:155:49:

          154|
          155|   gitignoreFilterSourcePure = filter: patterns: root:
             |                                                 ^
          156|     filterSource (gitignoreFilterPure filter patterns root) root;

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/servers/audiobookshelf/node-deps.nix:910:13:

          909|       name = args.name + "-package-json";
          910|       src = nix-gitignore.gitignoreSourcePure [
             |             ^
          911|         "*"

       … while evaluating the attribute 'src' of the derivation 'audiobookshelf-package-json'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/stdenv/generic/make-derivation.nix:286:7:

          285|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          286|       name =
             |       ^
          287|         let

       … while evaluating the attribute 'installPhase' of the derivation 'node-dependencies-audiobookshelf-2.2.12'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/stdenv/generic/make-derivation.nix:286:7:

          285|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          286|       name =
             |       ^
          287|         let

       … while evaluating the attribute 'installPhase' of the derivation 'audiobookshelf-2.2.12'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/stdenv/generic/make-derivation.nix:286:7:

          285|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          286|       name =
             |       ^
          287|         let

       … while evaluating the attribute 'outPath'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/lib/customisation.nix:215:13:

          214|             drvPath = assert condition; drv.${outputName}.drvPath;
          215|             outPath = assert condition; drv.${outputName}.outPath;
             |             ^
          216|           };

       … while evaluating the attribute 'outPath'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/lib/customisation.nix:245:13:

          244|           value = commonAttrs // {
          245|             outPath = output.outPath;
             |             ^
          246|             drvPath = output.drvPath;

       … while calling 'hydraJob'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/lib/customisation.nix:229:14:

          228|      garbage collection. */
          229|   hydraJob = drv:
             |              ^
          230|     let

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/top-level/release-lib.nix:125:14:

          124|   testOnCross = crossSystem: metaPatterns: f: forMatchingSystems metaPatterns
          125|     (system: hydraJob' (f (pkgsForCross crossSystem system)));
             |              ^
          126|

       … while calling anonymous lambda

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/pkgs/top-level/release-lib.nix:125:6:

          124|   testOnCross = crossSystem: metaPatterns: f: forMatchingSystems metaPatterns
          125|     (system: hydraJob' (f (pkgsForCross crossSystem system)));
             |      ^
          126|

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/lib/attrsets.nix:558:43:

          557|     f:
          558|     listToAttrs (map (n: nameValuePair n (f n)) names);
             |                                           ^
          559|

       … while calling anonymous lambda

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-0/.gc-of-borg-outpaths.nix:47:12:

           46|   tweak = lib.mapAttrs
           47|     (name: val:
             |            ^
           48|       if name == "recurseForDerivations" then true

       … from call site