Disclaimer: this is an issue with a recent nightly build, not with the official release.
(I tested 2.5.1.12278.20070712-044543 and also a build Adriaan most kindly provided yesterday for testing an unrelated issue)



object Test
{
    abstract class Settings {}

    abstract class Grist
    { self =>
        type settingsType <: Settings
        type moduleType <: Module {type settingsType = self.settingsType}
        val module: moduleType
    }

    abstract class Tool
    { self =>
        type settingsType <: Settings
        type moduleType = Module { type settingsType = self.settingsType }
        type gristType = Grist { type moduleType <: self.moduleType; type settingsType <: self.settingsType }

        def inputGrist: List[gristType]
    }

    abstract class Module
    { self =>
        type settingsType <: Settings
        final type commonModuleType = Module {type settingsType = self.settingsType}
        type selfType >: self.type <: commonModuleType

        // BTW: if we use the commented out type declarations, the code compiles successfully
        // type gristType = Grist {type settingsType <: self.settingsType; type moduleType <: commonModuleType }

        val tools: List[Tool {type settingsType = self.settingsType}]

        protected def f: List[commonModuleType] =
        {
            val inputGrists = tools.flatMap(_.inputGrist) // val inputGrists: List[gristType] =
            inputGrists.map(_.module)
        }

    }
}

/*

With 2.5.1-final we receive useful feedback:-
compile:
   [scalac] Compiling 2 source files to d:\work\hammer4\releases\0\2\Output\classes
   [scalac] d:\work\hammer4\releases\0\2\files\src\hammer\Test.scala:33: error: value x$0 escapes its defining scope as part of type List[x$0.gristType]
   [scalac]             val inputGrists = tools.flatMap(_.inputGrist) // val inputGrists: List[gristType] =
   [scalac] 
   [scalac]                                              ^
   [scalac] d:\work\hammer4\releases\0\2\files\src\hammer\Test.scala:34: error: value module is not a member of Nothing
   [scalac]             inputGrists.map(_.module)
   [scalac] 
   [scalac]                              ^
   [scalac] two errors found


However with recent nightly snapshots, we receive a compiler stack trace:-


Buildfile: build.xml

compile:
   [scalac] Compiling 2 source files to d:\work\hammer4\releases\0\2\Output\classes
   [scalac] exception when traversing ((x$1: x$0.gristType) => x$1.module)
   [scalac] exception when traversing inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac] exception when traversing {
   [scalac]   val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]   inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac] }
   [scalac] exception when traversing protected def f: List[Module.this.commonModuleType] = {
   [scalac]   val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]   inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac] }
   [scalac] exception when traversing java.lang.Object with ScalaObject { self => 
   [scalac]   def this(): Test.this.Module = {
   [scalac]     Module.super.this();
   [scalac]     ()
   [scalac]   };
   [scalac]   type settingsType>: Nothing <: Test.this.Settings;
   [scalac]   final type commonModuleType = Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]   type selfType>: Module.this.type <: Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]   <stable> <accessor> def tools: List[Test.this.Tool{type settingsType = Module.this.settingsType}];
   [scalac]   protected def f: List[Module.this.commonModuleType] = {
   [scalac]     val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]     inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac]   }
   [scalac] }
   [scalac] exception when traversing abstract class Module extends java.lang.Object with ScalaObject { self => 
   [scalac]   def this(): Test.this.Module = {
   [scalac]     Module.super.this();
   [scalac]     ()
   [scalac]   };
   [scalac]   type settingsType>: Nothing <: Test.this.Settings;
   [scalac]   final type commonModuleType = Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]   type selfType>: Module.this.type <: Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]   <stable> <accessor> def tools: List[Test.this.Tool{type settingsType = Module.this.settingsType}];
   [scalac]   protected def f: List[Module.this.commonModuleType] = {
   [scalac]     val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]     inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac]   }
   [scalac] }
   [scalac] exception when traversing java.lang.Object with ScalaObject
   [scalac]   def this(): object Test = {
   [scalac]     Test.super.this();
   [scalac]     ()
   [scalac]   };
   [scalac]   abstract class Settings extends java.lang.Object with ScalaObject
   [scalac]     def this(): Test.this.Settings = {
   [scalac]       Settings.super.this();
   [scalac]       ()
   [scalac]     }
   [scalac]   };
   [scalac]   abstract class Grist extends java.lang.Object with ScalaObject { self => 
   [scalac]     def this(): Test.this.Grist = {
   [scalac]       Grist.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     type settingsType>: Nothing <: Test.this.Settings;
   [scalac]     type moduleType>: Nothing <: Test.this.Module{type settingsType = Grist.this.settingsType};
   [scalac]     <stable> <accessor> def module: Grist.this.moduleType
   [scalac]   };
   [scalac]   abstract class Tool extends java.lang.Object with ScalaObject { self => 
   [scalac]     def this(): Test.this.Tool = {
   [scalac]       Tool.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     type settingsType>: Nothing <: Test.this.Settings;
   [scalac]     type moduleType = Test.this.Module{type settingsType = Tool.this.settingsType};
   [scalac]     type gristType = Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Tool.this.settingsType}; type settingsType <: Tool.this.settingsType};
   [scalac]     def inputGrist: List[Tool.this.gristType]
   [scalac]   };
   [scalac]   abstract class Module extends java.lang.Object with ScalaObject { self => 
   [scalac]     def this(): Test.this.Module = {
   [scalac]       Module.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     type settingsType>: Nothing <: Test.this.Settings;
   [scalac]     final type commonModuleType = Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]     type selfType>: Module.this.type <: Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]     <stable> <accessor> def tools: List[Test.this.Tool{type settingsType = Module.this.settingsType}];
   [scalac]     protected def f: List[Module.this.commonModuleType] = {
   [scalac]       val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]       inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac]     }
   [scalac]   }
   [scalac] }
   [scalac] exception when traversing final class Test extends java.lang.Object with ScalaObject
   [scalac]   def this(): object Test = {
   [scalac]     Test.super.this();
   [scalac]     ()
   [scalac]   };
   [scalac]   abstract class Settings extends java.lang.Object with ScalaObject
   [scalac]     def this(): Test.this.Settings = {
   [scalac]       Settings.super.this();
   [scalac]       ()
   [scalac]     }
   [scalac]   };
   [scalac]   abstract class Grist extends java.lang.Object with ScalaObject { self => 
   [scalac]     def this(): Test.this.Grist = {
   [scalac]       Grist.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     type settingsType>: Nothing <: Test.this.Settings;
   [scalac]     type moduleType>: Nothing <: Test.this.Module{type settingsType = Grist.this.settingsType};
   [scalac]     <stable> <accessor> def module: Grist.this.moduleType
   [scalac]   };
   [scalac]   abstract class Tool extends java.lang.Object with ScalaObject { self => 
   [scalac]     def this(): Test.this.Tool = {
   [scalac]       Tool.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     type settingsType>: Nothing <: Test.this.Settings;
   [scalac]     type moduleType = Test.this.Module{type settingsType = Tool.this.settingsType};
   [scalac]     type gristType = Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Tool.this.settingsType}; type settingsType <: Tool.this.settingsType};
   [scalac]     def inputGrist: List[Tool.this.gristType]
   [scalac]   };
   [scalac]   abstract class Module extends java.lang.Object with ScalaObject { self => 
   [scalac]     def this(): Test.this.Module = {
   [scalac]       Module.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     type settingsType>: Nothing <: Test.this.Settings;
   [scalac]     final type commonModuleType = Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]     type selfType>: Module.this.type <: Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]     <stable> <accessor> def tools: List[Test.this.Tool{type settingsType = Module.this.settingsType}];
   [scalac]     protected def f: List[Module.this.commonModuleType] = {
   [scalac]       val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]       inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac]     }
   [scalac]   }
   [scalac] }
   [scalac] exception when traversing package <empty> {
   [scalac]   final class Test extends java.lang.Object with ScalaObject
   [scalac]     def this(): object Test = {
   [scalac]       Test.super.this();
   [scalac]       ()
   [scalac]     };
   [scalac]     abstract class Settings extends java.lang.Object with ScalaObject
   [scalac]       def this(): Test.this.Settings = {
   [scalac]         Settings.super.this();
   [scalac]         ()
   [scalac]       }
   [scalac]     };
   [scalac]     abstract class Grist extends java.lang.Object with ScalaObject { self => 
   [scalac]       def this(): Test.this.Grist = {
   [scalac]         Grist.super.this();
   [scalac]         ()
   [scalac]       };
   [scalac]       type settingsType>: Nothing <: Test.this.Settings;
   [scalac]       type moduleType>: Nothing <: Test.this.Module{type settingsType = Grist.this.settingsType};
   [scalac]       <stable> <accessor> def module: Grist.this.moduleType
   [scalac]     };
   [scalac]     abstract class Tool extends java.lang.Object with ScalaObject { self => 
   [scalac]       def this(): Test.this.Tool = {
   [scalac]         Tool.super.this();
   [scalac]         ()
   [scalac]       };
   [scalac]       type settingsType>: Nothing <: Test.this.Settings;
   [scalac]       type moduleType = Test.this.Module{type settingsType = Tool.this.settingsType};
   [scalac]       type gristType = Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Tool.this.settingsType}; type settingsType <: Tool.this.settingsType};
   [scalac]       def inputGrist: List[Tool.this.gristType]
   [scalac]     };
   [scalac]     abstract class Module extends java.lang.Object with ScalaObject { self => 
   [scalac]       def this(): Test.this.Module = {
   [scalac]         Module.super.this();
   [scalac]         ()
   [scalac]       };
   [scalac]       type settingsType>: Nothing <: Test.this.Settings;
   [scalac]       final type commonModuleType = Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]       type selfType>: Module.this.type <: Test.this.Module{type settingsType = Module.this.settingsType};
   [scalac]       <stable> <accessor> def tools: List[Test.this.Tool{type settingsType = Module.this.settingsType}];
   [scalac]       protected def f: List[Module.this.commonModuleType] = {
   [scalac]         val inputGrists: List[x$0.gristType] forSome { val x$0: Test.this.Tool{type settingsType = Module.this.settingsType} } = Module.this.tools.flatMap[Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType}](((x$0: Test.this.Tool{type settingsType = Module.this.settingsType}) => x$0.inputGrist));
   [scalac]         inputGrists.map[x$1.moduleType forSome { val x$1: Test.this.Grist{type moduleType <: Test.this.Module{type settingsType = Module.this.settingsType}; type settingsType <: Module.this.settingsType} }](((x$1: x$0.gristType) => x$1.module))
   [scalac]       }
   [scalac]     }
   [scalac]   }
   [scalac] }
   [scalac] scala.tools.nsc.symtab.Types$TypeError: type mismatch;
   [scalac]  found   : x$1.moduleType(in <refinement>)
   [scalac]  required: x$1.moduleType(in <refinement>) forSome { val x$1: x$0.gristType }
   [scalac] 	at scala.tools.nsc.typechecker.Contexts$Context.error(Contexts.scala:283)
   [scalac] 	at scala.tools.nsc.typechecker.Infer$Inferencer.error(Infer.scala:218)
   [scalac] 	at scala.tools.nsc.typechecker.Infer$Inferencer.typeError(Infer.scala:227)
   [scalac] 	at scala.tools.nsc.typechecker.Infer$Inferencer.typeErrorTree(Infer.scala:233)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.adapt(Typers.scala:741)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2771)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2813)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.transformedOrTyped(Typers.scala:2860)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedDefDef(Typers.scala:1188)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:2525)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2769)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2802)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedStat$0(Typers.scala:1399)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$56.apply(Typers.scala:1429)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$56.apply(Typers.scala:1429)
   [scalac] 	at scala.List$.loop$0(List.scala:243)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1429)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedTemplate(Typers.scala:1074)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedClassDef(Typers.scala:961)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:2516)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2769)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2802)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedStat$0(Typers.scala:1399)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$56.apply(Typers.scala:1429)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$56.apply(Typers.scala:1429)
   [scalac] 	at scala.List$.loop$0(List.scala:243)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:1429)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:1259)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:2543)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2769)
   [scalac] 	at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:2802)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transformFunction(UnCurry.scala:290)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:450)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$27.apply(Trees.scala:1308)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$27.apply(Trees.scala:1308)
   [scalac] 	at scala.List$.loop$0(List.scala:243)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformTrees(Trees.scala:1308)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$13.apply(UnCurry.scala:419)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$13.apply(UnCurry.scala:417)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.withNeedLift$0(UnCurry.scala:348)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:417)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1238)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:456)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$24.apply(Trees.scala:1221)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$24.apply(Trees.scala:1220)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1332)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1219)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.scala$tools$nsc$transform$UnCurry$UnCurryTransformer$$super$transform(UnCurry.scala:378)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$5.apply(UnCurry.scala:378)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$5.apply(UnCurry.scala:364)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.withNeedLift$0(UnCurry.scala:348)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:363)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$33.apply(Trees.scala:1326)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$33.apply(Trees.scala:1324)
   [scalac] 	at scala.List$.loop$0(List.scala:243)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.List$.loop$0(List.scala:247)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.List$.loop$0(List.scala:247)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1324)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1236)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$0.apply(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$0.apply(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1332)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.scala$tools$nsc$transform$UnCurry$UnCurryTransformer$$super$transform(UnCurry.scala:378)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$16.apply(UnCurry.scala:453)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$16.apply(UnCurry.scala:453)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.withInConstructorFlag$0(UnCurry.scala:356)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:453)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformTemplate(Trees.scala:1310)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$21.apply(Trees.scala:1208)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$21.apply(Trees.scala:1208)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1332)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1207)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:456)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$33.apply(Trees.scala:1326)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$33.apply(Trees.scala:1324)
   [scalac] 	at scala.List$.loop$0(List.scala:243)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.List$.loop$0(List.scala:247)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.List$.loop$0(List.scala:247)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.List$.loop$0(List.scala:247)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.List$.loop$0(List.scala:247)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1324)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1236)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$0.apply(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$0.apply(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1332)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.scala$tools$nsc$transform$UnCurry$UnCurryTransformer$$super$transform(UnCurry.scala:378)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$16.apply(UnCurry.scala:453)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$16.apply(UnCurry.scala:453)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.withInConstructorFlag$0(UnCurry.scala:356)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:453)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformTemplate(Trees.scala:1310)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$21.apply(Trees.scala:1208)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$21.apply(Trees.scala:1208)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1332)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1207)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:456)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$33.apply(Trees.scala:1326)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$33.apply(Trees.scala:1324)
   [scalac] 	at scala.List$.loop$0(List.scala:243)
   [scalac] 	at scala.List$.mapConserve(List.scala:260)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1324)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$20.apply(Trees.scala:1204)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer$$anonfun$20.apply(Trees.scala:1204)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1332)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1203)
   [scalac] 	at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:456)
   [scalac] 	at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:105)
   [scalac] 	at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:1327)
   [scalac] 	at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30)
   [scalac] 	at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:260)
   [scalac] 	at scala.tools.nsc.Global$GlobalPhase$$anonfun$2.apply(Global.scala:249)
   [scalac] 	at scala.tools.nsc.Global$GlobalPhase$$anonfun$2.apply(Global.scala:249)
   [scalac] 	at scala.Iterator$class.foreach(Iterator.scala:364)
   [scalac] 	at scala.collection.mutable.ListBuffer$$anon$0.foreach(ListBuffer.scala:248)
   [scalac] 	at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:249)
   [scalac] 	at scala.tools.nsc.Global$Run.compileSources(Global.scala:544)
   [scalac] 	at scala.tools.nsc.Global$Run.compile(Global.scala:623)
   [scalac] 	at scala.tools.ant.Scalac.execute(Scalac.scala:557)
   [scalac] 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
   [scalac] 	at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
   [scalac] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   [scalac] 	at java.lang.reflect.Method.invoke(Method.java:585)
   [scalac] 	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
   [scalac] 	at org.apache.tools.ant.Task.perform(Task.java:348)
   [scalac] 	at org.apache.tools.ant.Target.execute(Target.java:357)
   [scalac] 	at org.apache.tools.ant.Target.performTasks(Target.java:385)
   [scalac] 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
   [scalac] 	at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
   [scalac] 	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
   [scalac] 	at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
   [scalac] 	at org.apache.tools.ant.Main.runBuild(Main.java:698)
   [scalac] 	at org.apache.tools.ant.Main.startAnt(Main.java:199)
   [scalac] 	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
   [scalac] 	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)

BUILD FAILED
d:\work\hammer4\releases\0\2\files\build.xml:181: Compile failed because of an internal compiler error (type mismatch;
 found   : x$1.moduleType(in <refinement>)
 required: x$1.moduleType(in <refinement>) forSome { val x$1: x$0.gristType }); see the error output for details.

Total time: 3 seconds