error:
       … while calling the 'getAttr' builtin

         at /builtin/derivation.nix:19:19: (source not available)

       … while calling the 'derivationStrict' builtin

         at /builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'image-marlowe-oracle.json'
         whose name attribute is located at /nix/store/h8i9947gh8lmpm9chjk585a24v9194nx-source/pkgs/stdenv/generic/make-derivation.nix:294:7

       … while evaluating attribute 'buildCommand' of derivation 'image-marlowe-oracle.json'

         at /nix/store/h8i9947gh8lmpm9chjk585a24v9194nx-source/pkgs/build-support/trivial-builders.nix:87:14:

           86|       enableParallelBuilding = true;
           87|       inherit buildCommand name;
             |              ^
           88|       passAsFile = [ "buildCommand" ]

       … from call site

         at /nix/store/gj4ahggrgxl94ck8vlyl40b1rdck7wq7-source/default.nix:442:20:

          441|       fromImageFlag = l.optionalString (fromImage != "") "--from-image ${fromImage}";
          442|       layerPaths = l.concatMapStringsSep " " (l: l + "/layers.json") (layers ++ [customizationLayer]);
             |                    ^
          443|       image = let

       … while calling 'concatMapStringsSep'

         at /nix/store/h8i9947gh8lmpm9chjk585a24v9194nx-source/lib/strings.nix:112:5:

          111|     # List of input strings
          112|     list: concatStringsSep sep (map f list);
             |     ^
          113|

       … while calling anonymous lambda

         at /nix/store/gj4ahggrgxl94ck8vlyl40b1rdck7wq7-source/default.nix:442:47:

          441|       fromImageFlag = l.optionalString (fromImage != "") "--from-image ${fromImage}";
          442|       layerPaths = l.concatMapStringsSep " " (l: l + "/layers.json") (layers ++ [customizationLayer]);
             |                                               ^
          443|       image = let

       … while evaluating derivation 'layers.json'
         whose name attribute is located at /nix/store/h8i9947gh8lmpm9chjk585a24v9194nx-source/pkgs/stdenv/generic/make-derivation.nix:294:7

       … while evaluating attribute 'buildCommand' of derivation 'layers.json'

         at /nix/store/h8i9947gh8lmpm9chjk585a24v9194nx-source/pkgs/build-support/trivial-builders.nix:87:14:

           86|       enableParallelBuilding = true;
           87|       inherit buildCommand name;
             |              ^
           88|       passAsFile = [ "buildCommand" ]

       … while evaluating derivation 'closure-graph.json'
         whose name attribute is located at /nix/store/h8i9947gh8lmpm9chjk585a24v9194nx-source/pkgs/stdenv/generic/make-derivation.nix:294:7

       … while evaluating attribute 'exportReferencesGraph' of derivation 'closure-graph.json'

         at /nix/store/gj4ahggrgxl94ck8vlyl40b1rdck7wq7-source/default.nix:330:7:

          329|     {
          330|       exportReferencesGraph.graph = paths;
             |       ^
          331|       __structuredAttrs = true;

       … while calling anonymous lambda

         at /nix/store/9c3nsa1y57qmsrjsa1k43vgcvj7nqpc0-source/src/_internal/mergeAt.nix:47:12:

           46|       zipAttrsWith (
           47|         n: values: let
             |            ^
           48|           cursor' = attrPath ++ [n];

       … from call site

         at /nix/store/9c3nsa1y57qmsrjsa1k43vgcvj7nqpc0-source/src/_internal/mergeAt.nix:66:30:

           65|         in
           66|           if (isSingleton && isFunction singleton)
             |                              ^
           67|           then tryArrayMerge cursor' [] rhs' rhsFilePos lhsFilePos # empty lhs

       … while calling 'isFunction'

         at /nix/store/yf26s7734ql7q05zlq6nq4y5q3rjyhj7-source/lib/trivial.nix:448:16:

          447|   */
          448|   isFunction = f: builtins.isFunction f ||
             |                ^
          449|     (f ? __functor && isFunction (f.__functor f));

       … from call site

         at /nix/store/yf26s7734ql7q05zlq6nq4y5q3rjyhj7-source/pkgs/stdenv/generic/make-derivation.nix:303:9:

          302|         in
          303|         lib.strings.sanitizeDerivationName (
             |         ^
          304|           if attrs ? name

       … while calling anonymous lambda

         at /nix/store/yf26s7734ql7q05zlq6nq4y5q3rjyhj7-source/lib/strings.nix:1015:3:

         1014|   in
         1015|   string:
             |   ^
         1016|   # First detect the common case of already valid strings, to speed those up

       … while calling 'iteration'

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/lib/utils.nix:105:37:

          104|       let
          105|         iteration = cutoff: system: fragment:
             |                                     ^
          106|           if ! (l.isAttrs fragment) || cutoff == 0 then

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/lib/utils.nix:111:18:

          110|             if l.hasAttr "${system}" fragment then
          111|               if l.isFunction fragment.${system} then
             |                  ^
          112|                 recursed // { __functor = _: fragment.${system}; }

       … while calling 'isFunction'

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/trivial.nix:448:16:

          447|   */
          448|   isFunction = f: builtins.isFunction f ||
             |                ^
          449|     (f ? __functor && isFunction (f.__functor f));

       … while calling anonymous lambda

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:816:24:

          815|     let f = attrPath:
          816|       zipAttrsWith (n: values:
             |                        ^
          817|         let here = attrPath ++ [n]; in

       … while calling anonymous lambda

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:816:24:

          815|     let f = attrPath:
          816|       zipAttrsWith (n: values:
             |                        ^
          817|         let here = attrPath ++ [n]; in

       … while calling anonymous lambda

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:816:24:

          815|     let f = attrPath:
          816|       zipAttrsWith (n: values:
             |                        ^
          817|         let here = attrPath ++ [n]; in

       … from call site

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:819:12:

          818|         if length values == 1
          819|         || pred here (elemAt values 1) (head values) then
             |            ^
          820|           head values

       … while calling anonymous lambda

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:853:38:

          852|     rhs:
          853|     recursiveUpdateUntil (path: lhs: rhs: !(isAttrs lhs && isAttrs rhs)) lhs rhs;
             |                                      ^
          854|

       … while calling anonymous lambda

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:816:24:

          815|     let f = attrPath:
          816|       zipAttrsWith (n: values:
             |                        ^
          817|         let here = attrPath ++ [n]; in

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:68:20:

           67|         checks = makeAliasesForGroupIfNoDuplicates flake.checks;
           68|         packages = makeAliasesForGroupIfNoDuplicates flake.packages;
             |                    ^
           69|       };

       … while calling 'makeAliasesForGroupIfNoDuplicates'

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:50:43:

           49|
           50|       makeAliasesForGroupIfNoDuplicates = group:
             |                                           ^
           51|         let duplicates = findDuplicateComps group; in

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:51:26:

           50|       makeAliasesForGroupIfNoDuplicates = group:
           51|         let duplicates = findDuplicateComps group; in
             |                          ^
           52|         if lib.length duplicates == 0 then

       … while calling 'findDuplicateComps'

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:46:28:

           45|
           46|       findDuplicateComps = group:
             |                            ^
           47|         let names = lib.attrNames (makeAliasesForGroup group);

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:48:12:

           47|         let names = lib.attrNames (makeAliasesForGroup group);
           48|         in utils.findDuplicates names;
             |            ^
           49|

       … while calling 'findDuplicates'

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/lib/utils.nix:124:22:

          123|
          124|     findDuplicates = list:
             |                      ^
          125|       map l.head (

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/lib/utils.nix:127:11:

          126|         l.attrValues (
          127|           l.filterAttrs
             |           ^
          128|             (k: v: l.length v > 1)

       … while calling 'filterAttrs'

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:309:5:

          308|     # The attribute set to filter
          309|     set:
             |     ^
          310|     listToAttrs (concatMap (name: let v = set.${name}; in if pred name v then [(nameValuePair name v)] else []) (attrNames set));

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:47:36:

           46|       findDuplicateComps = group:
           47|         let names = lib.attrNames (makeAliasesForGroup group);
             |                                    ^
           48|         in utils.findDuplicates names;

       … while calling 'makeAliasesForGroup'

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:33:29:

           32|     let
           33|       makeAliasesForGroup = group:
             |                             ^
           34|         let

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:42:9:

           41|         in
           42|         lib.mapAttrs' mkPair runnables;
             |         ^
           43|

       … while calling 'mapAttrs''

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:522:5:

          521|     # Attribute set to map over.
          522|     set:
             |     ^
          523|     listToAttrs (map (attr: f attr set.${attr}) (attrNames set));

       … from call site

         at /nix/store/sbmf427rawgn5nnmd00a44cxddvrzzys-source/src/core/mkHaskellProject.nix:40:23:

           39|           isRunnable = name: isExe name || isTest name || isBench name;
           40|           runnables = lib.filterAttrs (name: _: isRunnable name) group;
             |                       ^
           41|         in

       … while calling 'filterAttrs'

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:309:5:

          308|     # The attribute set to filter
          309|     set:
             |     ^
          310|     listToAttrs (concatMap (name: let v = set.${name}; in if pred name v then [(nameValuePair name v)] else []) (attrNames set));

       … from call site

         at /nix/store/pwg6v991h09awixz03c019wb1g68ykqq-source/lib/default.nix:508:22:

          507|         , haskellPackages ? selectPackages project.hsPkgs
          508|         , packages ? mkFlakePackages haskellPackages
             |                      ^
          509|         , apps ? mkFlakeApps haskellPackages

       … while calling 'foldrAttrVals'

         at /nix/store/pwg6v991h09awixz03c019wb1g68ykqq-source/lib/default.nix:37:25:

           36|
           37|   foldrAttrVals = f: z: attrs:
             |                         ^
           38|     lib.foldr f z (builtins.attrValues attrs);

       … from call site

         at /nix/store/pwg6v991h09awixz03c019wb1g68ykqq-source/lib/default.nix:38:5:

           37|   foldrAttrVals = f: z: attrs:
           38|     lib.foldr f z (builtins.attrValues attrs);
             |     ^
           39|

       … while calling 'foldr'

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/lists.nix:53:20:

           52|   */
           53|   foldr = op: nul: list:
             |                    ^
           54|     let

       … from call site

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/lists.nix:60:8:

           59|         else op (elemAt list n) (fold' (n + 1));
           60|     in fold' 0;
             |        ^
           61|

       … while calling 'fold''

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/lists.nix:56:15:

           55|       len = length list;
           56|       fold' = n:
             |               ^
           57|         if n == len

       … from call site

         at /nix/store/pwg6v991h09awixz03c019wb1g68ykqq-source/lib/default.nix:507:29:

          506|           selectPackages ? haskellLib.selectProjectPackages
          507|         , haskellPackages ? selectPackages project.hsPkgs
             |                             ^
          508|         , packages ? mkFlakePackages haskellPackages

       … while calling 'filterAttrs'

         at /nix/store/apn339kmg5xllk224ghr7cw6468pgkc7-source/lib/attrsets.nix:309:5:

          308|     # The attribute set to filter
          309|     set:
             |     ^
          310|     listToAttrs (concatMap (name: let v = set.${name}; in if pred name v then [(nameValuePair name v)] else []) (attrNames set));

       … from call site

         at /nix/store/pwg6v991h09awixz03c019wb1g68ykqq-source/overlays/haskell.nix:658:27:

          657|               callProjectResults = callCabalProjectToNix config;
          658|               plan-pkgs = importAndFilterProject {
             |                           ^
          659|                 inherit (callProjectResults) projectNix sourceRepos src;

       … while calling anonymous lambda

         at /nix/store/pwg6v991h09awixz03c019wb1g68ykqq-source/lib/import-and-filter-project.nix:5:1:

            4| { pkgs, haskellLib }:
            5| { projectNix, sourceRepos, src }:
             | ^
            6| let

       error: builder for '/nix/store/f2l1xs5k92azw36pyrfms5lrv412qiwp-marlowe-cardano-plan-to-nix-pkgs.drv' failed with exit code 1;
       last 10 log lines:
       > multiplate==0.0.3)
       > [__5] skipping: multiplate-0.0.1.1, multiplate-0.0.1, multiplate-0.0 (has the
       > same characteristics that caused the previous version to fail: excluded by
       > constraint '==0.0.3' from 'marlowe-cardano')
       > [__5] fail (backjumping, conflict set: ghc, marlowe-cardano, multiplate)
       > After searching the rest of the dependency tree exhaustively, these were the
       > goals I've had most trouble fulfilling: ghc, plutus-ledger-api, PyF,
       > cardano-api, marlowe-cardano, multiplate
       > Try running with --minimize-conflict-set to improve the error message.
       > )
       For full logs, run 'nix log /nix/store/f2l1xs5k92azw36pyrfms5lrv412qiwp-marlowe-cardano-plan-to-nix-pkgs.drv'.