Output path comparison

nix-env failed:
error:
       … while calling anonymous lambda

         at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/.gc-of-borg-outpaths.nix:48:12:

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

       … from call site

         at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/lib/attrsets.nix:1248:43:

         1247|     f:
         1248|     listToAttrs (map (n: nameValuePair n (f n)) names);
             |                                           ^
         1249|

       … while calling anonymous lambda

         at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/pkgs/top-level/release-lib.nix:146:6:

          145|   testOnCross = crossSystem: metaPatterns: f: forMatchingSystems metaPatterns
          146|     (system: hydraJob' (f (pkgsForCross crossSystem system)));
             |      ^
          147|

       … from call site

         at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/pkgs/top-level/release-lib.nix:146:14:

          145|   testOnCross = crossSystem: metaPatterns: f: forMatchingSystems metaPatterns
          146|     (system: hydraJob' (f (pkgsForCross crossSystem system)));
             |              ^
          147|

       … while calling 'hydraJob'

         at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/lib/customisation.nix:388:14:

          387|   */
          388|   hydraJob = drv:
             |              ^
          389|     let

       … while evaluating derivation 'traverso-0.49.6'
         whose name attribute is located at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/pkgs/stdenv/generic/make-derivation.nix:334:7

       … while evaluating attribute 'cmakeFlags' of derivation 'traverso-0.49.6'

         at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/pkgs/stdenv/generic/make-derivation.nix:559:7:

          558|     // {
          559|       cmakeFlags = makeCMakeFlags attrs;
             |       ^
          560|       mesonFlags = makeMesonFlags attrs;

       error: attempt to call something which is not a function but a string

       at /ofborg/checkout/2/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-2/pkgs/applications/audio/traverso/default.nix:19:19:

           18|
           19|   cmakeFlags = [ (lib.cmakeFeature "WANT_PORTAUDIO" "1" "-DWANT_PULSEAUDIO=1" "-DWANT_MP3_ENCODE=1" "-DWANT_LV2=0") ];
             |                   ^
           20|