Output path comparison

nix-env failed:
error: infinite recursion encountered

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/applications/science/math/sage/default.nix:49:60:

           48|     logo64 = "${sage-src}/src/doc/common/themes/sage/static/sageicon.png";
           49|   } // lib.optionalAttrs withDoc { extraPaths = { "doc" = "${sagedoc}/share/doc/sage/html/en"; }; };
             |                                                            ^
           50|

       … while evaluating anonymous lambda

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/applications/editors/jupyter/kernel.nix:40:60:

           39|
           40|       ${concatStringsSep "\n" (mapAttrsToList (kernelName: unfilteredKernel:
             |                                                            ^
           41|         let

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/attrsets.nix:356:16:

          355|   mapAttrsToList = f: attrs:
          356|     map (name: f name attrs.${name}) (attrNames attrs);
             |                ^
          357|

       … while evaluating anonymous lambda

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/attrsets.nix:356:10:

          355|   mapAttrsToList = f: attrs:
          356|     map (name: f name attrs.${name}) (attrNames attrs);
             |          ^
          357|

       … from call site

       … while evaluating the attribute 'installPhase' of the derivation 'jupyter-kernels'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/stdenv/generic/make-derivation.nix:270:7:

          269|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          270|       name =
             |       ^
          271|         let

       … while evaluating the attribute 'buildPhase' of the derivation 'sagedoc-9.6'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/stdenv/generic/make-derivation.nix:270:7:

          269|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          270|       name =
             |       ^
          271|         let

       … while evaluating 'optionalString'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/strings.nix:203:5:

          202|     # String to return if condition is true
          203|     string: if cond then string else "";
             |     ^
          204|

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/applications/science/math/sage/sage.nix:36:9:

           35|       --set SAGE_DOC_SRC_OVERRIDE "${src}/src/doc" ${
           36|         lib.optionalString withDoc "--set SAGE_DOC_OVERRIDE ${sagedoc}/share/doc/sage"
             |         ^
           37|       } \

       … while evaluating the attribute 'installPhase' of the derivation 'sage-9.6'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/stdenv/generic/make-derivation.nix:270:7:

          269|     // (lib.optionalAttrs (attrs ? name || (attrs ? pname && attrs ? version)) {
          270|       name =
             |       ^
          271|         let

       … while evaluating the attribute 'drvPath'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/customisation.nix:203:13:

          202|             outputSpecified = true;
          203|             drvPath = assert condition; drv.${outputName}.drvPath;
             |             ^
          204|             outPath = assert condition; drv.${outputName}.outPath;

       … while evaluating the attribute 'drvPath'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/customisation.nix:235:13:

          234|             outPath = output.outPath;
          235|             drvPath = output.drvPath;
             |             ^
          236|             type = "derivation";

       … while evaluating 'hydraJob'

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/customisation.nix:218:14:

          217|      garbage collection. */
          218|   hydraJob = drv:
             |              ^
          219|     let

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/top-level/release-lib.nix:123:14:

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

       … while evaluating anonymous lambda

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/pkgs/top-level/release-lib.nix:123:6:

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

       … from call site

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/lib/attrsets.nix:414:43:

          413|   genAttrs = names: f:
          414|     listToAttrs (map (n: nameValuePair n (f n)) names);
             |                                           ^
          415|

       … while evaluating anonymous lambda

       at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-5/.gc-of-borg-outpaths.nix:44:12:

           43|   tweak = lib.mapAttrs
           44|     (name: val:
             |            ^
           45|       if name == "recurseForDerivations" then true

       … from call site