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Matchtype recursion crashes #15272

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#15310
Closed
Matchtype recursion crashes#15272
#15310
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area:typeritype:bugitype:crash
Milestone
 
3.2.0
@simlei

Description

@simlei
simlei
opened on May 23, 2022

Compiler version

3.1.3-RC2

Minimized code

    sealed trait EdgeN[+NT]
    object EdgeN:
      case class Head[+NT, +From <: NT, +To <: NT]    (from: From, to: To ) extends EdgeN[NT]
      case class Cons[+NT, +From <: NT, +ToE <: EdgeN[NT]](from: From, to: ToE) extends EdgeN[NT]
      final type InNodesTupleOf[NT, E <: EdgeN[NT]] <: Tuple = E match
        case Cons[nt,from,toE] => from *: InNodesTupleOf[nt,toE]
        case Head[nt,from ,to] => from *: EmptyTuple
      def inNodesTuple[NT,E <: EdgeN[NT]](edge: E): InNodesTupleOf[NT,E] = edge match
        case e: Cons[nt,from,toE] => e.from *: inNodesTuple[nt,toE](e.to)
        case e: Head[nt,from,to] => e.from *: EmptyTuple
    end EdgeN

It's basically a non-empty-tuple ADT with an upper type bound for the elements (NT).

Output (click arrow to expand)

dotty crashes:

|| [error] java.lang.NullPointerException
|| [error] dotty.tools.dotc.core.TypeOps$.simplify(TypeOps.scala:148)
|| [error] dotty.tools.dotc.core.Types$Type.simplified(Types.scala:1890)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer$$anon$4.apply(TypeComparer.scala:2881)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer$$anon$4.apply(TypeComparer.scala:2879)
|| [error] dotty.tools.dotc.core.Types$TypeAccumulator.op$proxy23$1(Types.scala:6013)
|| [error] dotty.tools.dotc.core.Types$TypeAccumulator.foldArgs$3(Types.scala:6013)
|| [error] dotty.tools.dotc.core.Types$TypeAccumulator.foldOver(Types.scala:6017)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer$$anon$4.apply(TypeComparer.scala:2884)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer$$anon$4.apply(TypeComparer.scala:2879)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer.matchCase$1(TypeComparer.scala:2918)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer.recur$2(TypeComparer.scala:2934)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer.op$proxy73$1(TypeComparer.scala:2964)
|| [error] dotty.tools.dotc.core.TrackingTypeComparer.matchCases(TypeComparer.scala:2965)
|| [error] dotty.tools.dotc.core.Types$MatchType.matchCases$1(Types.scala:4865)
|| [error] dotty.tools.dotc.core.Types$MatchType.reduced$$anonfun$1(Types.scala:4874)
|| [error] dotty.tools.dotc.core.TypeComparer.inSubComparer(TypeComparer.scala:2671)
|| [error] dotty.tools.dotc.core.TypeComparer.tracked(TypeComparer.scala:2681)
|| [error] dotty.tools.dotc.core.TypeComparer$.tracked(TypeComparer.scala:2837)
|| [error] dotty.tools.dotc.core.Types$MatchType.reduced(Types.scala:4874)
|| [error] dotty.tools.dotc.core.TypeComparer.thirdTry$1(TypeComparer.scala:684)
|| [error] dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:390)
|| [error] dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:378)
|| [error] dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1323)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:189)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubApproxHi$1(TypeComparer.scala:1298)
|| [error] dotty.tools.dotc.core.TypeComparer.fallback$2$$anonfun$2(TypeComparer.scala:1160)
|| [error] scala.Function0.apply$mcZ$sp(Function0.scala:39)
|| [error] dotty.tools.dotc.core.TypeComparer.necessaryEither(TypeComparer.scala:1748)
|| [error] dotty.tools.dotc.core.TypeComparer.either(TypeComparer.scala:1604)
|| [error] dotty.tools.dotc.core.TypeComparer.fallback$2(TypeComparer.scala:1160)
|| [error] dotty.tools.dotc.core.TypeComparer.compareLower$1(TypeComparer.scala:1176)
|| [error] dotty.tools.dotc.core.TypeComparer.compareAppliedType2$1(TypeComparer.scala:1200)
|| [error] dotty.tools.dotc.core.TypeComparer.thirdTry$1(TypeComparer.scala:559)
|| [error] dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:390)
|| [error] dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:378)
|| [error] dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1323)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:189)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:199)
|| [error] dotty.tools.dotc.core.TypeComparer.isSub(TypeComparer.scala:201)
|| [error] dotty.tools.dotc.core.ConstraintHandling.op$proxy2$1(ConstraintHandling.scala:405)
|| [error] dotty.tools.dotc.core.ConstraintHandling.isSubTypeWhenFrozen(ConstraintHandling.scala:405)
|| [error] dotty.tools.dotc.core.ConstraintHandling.isSubTypeWhenFrozen$(ConstraintHandling.scala:27)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubTypeWhenFrozen(TypeComparer.scala:30)
|| [error] dotty.tools.dotc.core.TypeComparer.compareTypeParamRef$1(TypeComparer.scala:406)
|| [error] dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:411)
|| [error] dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:378)
|| [error] dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1323)
|| [error] dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:428)
|| [error] dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:378)
|| [error] dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1323)
|| [error] dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:321)
|| [error] dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1323)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:189)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:199)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubArg$1(TypeComparer.scala:1544)
|| [error] dotty.tools.dotc.core.TypeComparer.recurArgs$1(TypeComparer.scala:1546)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubArgs(TypeComparer.scala:1549)
|| [error] dotty.tools.dotc.core.TypeComparer.loop$1(TypeComparer.scala:1110)
|| [error] dotty.tools.dotc.core.TypeComparer.isMatchingApply$1(TypeComparer.scala:1125)
|| [error] dotty.tools.dotc.core.TypeComparer.compareAppliedType2$1(TypeComparer.scala:1195)
|| [error] dotty.tools.dotc.core.TypeComparer.thirdTry$1(TypeComparer.scala:559)
|| [error] dotty.tools.dotc.core.TypeComparer.secondTry$1(TypeComparer.scala:492)
|| [error] dotty.tools.dotc.core.TypeComparer.firstTry$1(TypeComparer.scala:378)
|| [error] dotty.tools.dotc.core.TypeComparer.recur(TypeComparer.scala:1323)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:189)
|| [error] dotty.tools.dotc.core.TypeComparer.isSubType(TypeComparer.scala:199)
|| [error] dotty.tools.dotc.core.TypeComparer.topLevelSubType(TypeComparer.scala:126)
|| [error] dotty.tools.dotc.core.TypeComparer.necessarySubType(TypeComparer.scala:137)
|| [error] dotty.tools.dotc.core.TypeComparer$.necessarySubType(TypeComparer.scala:2737)
|| [error] dotty.tools.dotc.typer.ProtoTypes$Compatibility.necessarilyCompatible(ProtoTypes.scala:46)
|| [error] dotty.tools.dotc.typer.ProtoTypes$Compatibility.necessarilyCompatible$(ProtoTypes.scala:25)
|| [error] dotty.tools.dotc.typer.ProtoTypes$NoViewsAllowed$.necessarilyCompatible(ProtoTypes.scala:119)
|| [error] dotty.tools.dotc.typer.ProtoTypes$Compatibility.constrainResult(ProtoTypes.scala:96)
|| [error] dotty.tools.dotc.typer.ProtoTypes$Compatibility.constrainResult$(ProtoTypes.scala:25)
|| [error] dotty.tools.dotc.typer.ProtoTypes$NoViewsAllowed$.constrainResult(ProtoTypes.scala:119)
|| [error] dotty.tools.dotc.typer.ProtoTypes$Compatibility.constrainResult(ProtoTypes.scala:113)
|| [error] dotty.tools.dotc.typer.ProtoTypes$Compatibility.constrainResult$(ProtoTypes.scala:25)
|| [error] dotty.tools.dotc.typer.ProtoTypes$NoViewsAllowed$.constrainResult(ProtoTypes.scala:119)
|| [error] dotty.tools.dotc.typer.Applications$Application.init(Applications.scala:453)
|| [error] dotty.tools.dotc.typer.Applications$TypedApply.<init>(Applications.scala:748)
|| [error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.<init>(Applications.scala:865)
|| [error] dotty.tools.dotc.typer.Applications.ApplyTo(Applications.scala:1065)
|| [error] dotty.tools.dotc.typer.Applications.ApplyTo$(Applications.scala:327)
|| [error] dotty.tools.dotc.typer.Typer.ApplyTo(Typer.scala:117)
|| [error] dotty.tools.dotc.typer.Applications.simpleApply$1(Applications.scala:911)
|| [error] dotty.tools.dotc.typer.Applications.realApply$1$$anonfun$3(Applications.scala:991)
|| [error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:3104)
|| [error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:1002)
|| [error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1040)
|| [error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:327)
|| [error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:117)
|| [error] dotty.tools.dotc.typer.Typer.typedInfixOp(Typer.scala:2717)
|| [error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2871)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2895)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3080)
|| [error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:1073)
|| [error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2840)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2895)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3080)
|| [error] dotty.tools.dotc.typer.Typer.caseRest$1(Typer.scala:1702)
|| [error] dotty.tools.dotc.typer.Typer.typedCase(Typer.scala:1718)
|| [error] dotty.tools.dotc.typer.Typer.$anonfun$24(Typer.scala:1630)
|| [error] scala.collection.immutable.List.map(List.scala:246)
|| [error] dotty.tools.dotc.typer.Typer.typedDependentMatchFinish(Typer.scala:1633)
|| [error] dotty.tools.dotc.typer.Typer.typedMatch(Typer.scala:1594)
|| [error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2846)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2895)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3080)
|| [error] dotty.tools.dotc.typer.Typer.$anonfun$47(Typer.scala:2278)
|| [error] dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:248)
|| [error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:2278)
|| [error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2808)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2894)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2986)
|| [error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:3036)
|| [error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2476)
|| [error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$1(Typer.scala:2820)
|| [error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2824)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2894)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2986)
|| [error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:3036)
|| [error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:1067)
|| [error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:1071)
|| [error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2840)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2895)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3080)
|| [error] dotty.tools.dotc.typer.Typer.$anonfun$47(Typer.scala:2278)
|| [error] dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:248)
|| [error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:2278)
|| [error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2808)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2894)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2986)
|| [error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:3036)
|| [error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2476)
|| [error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$1(Typer.scala:2820)
|| [error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2824)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2894)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2986)
|| [error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:3036)
|| [error] dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2603)
|| [error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2865)
|| [error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2895)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2960)
|| [error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2964)
|| [error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:3080)
|| [error] dotty.tools.dotc.typer.TyperPhase.typeCheck$$anonfun$1(TyperPhase.scala:43)
|| [error] dotty.tools.dotc.typer.TyperPhase.typeCheck$$anonfun$adapted$1(TyperPhase.scala:50)
|| [error] scala.Function0.apply$mcV$sp(Function0.scala:39)
|| [error] dotty.tools.dotc.core.Phases$Phase.monitor(Phases.scala:414)
|| [error] dotty.tools.dotc.typer.TyperPhase.typeCheck(TyperPhase.scala:50)
|| [error] dotty.tools.dotc.typer.TyperPhase.runOn$$anonfun$3(TyperPhase.scala:84)
|| [error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
|| [error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
|| [error] scala.collection.immutable.List.foreach(List.scala:333)
|| [error] dotty.tools.dotc.typer.TyperPhase.runOn(TyperPhase.scala:84)
|| [error] dotty.tools.dotc.Run.runPhases$1$$anonfun$1(Run.scala:225)
|| [error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
|| [error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
|| [error] scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1328)
|| [error] dotty.tools.dotc.Run.runPhases$1(Run.scala:236)
|| [error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:244)
|| [error] dotty.tools.dotc.Run.compileUnits$$anonfun$adapted$1(Run.scala:253)
|| [error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:68)
|| [error] dotty.tools.dotc.Run.compileUnits(Run.scala:253)
|| [error] dotty.tools.dotc.Run.compileSources(Run.scala:186)
|| [error] dotty.tools.dotc.Run.compile(Run.scala:170)
|| [error] dotty.tools.dotc.Driver.doCompile(Driver.scala:35)
|| [error] dotty.tools.xsbt.CompilerBridgeDriver.run(CompilerBridgeDriver.java:88)
|| [error] dotty.tools.xsbt.CompilerBridge.run(CompilerBridge.java:22)
|| [error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:91)
|| [error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$7(MixedAnalyzingCompiler.scala:186)
|| [error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
|| [error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:241)
|| [error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:176)
|| [error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4$adapted(MixedAnalyzingCompiler.scala:157)
|| [error] sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:239)
|| [error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:157)
|| [error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:204)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:528)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:528)
|| [error] sbt.internal.inc.Incremental$.$anonfun$apply$5(Incremental.scala:174)
|| [error] sbt.internal.inc.Incremental$.$anonfun$apply$5$adapted(Incremental.scala:172)
|| [error] sbt.internal.inc.Incremental$$anon$2.run(Incremental.scala:457)
|| [error] sbt.internal.inc.IncrementalCommon$CycleState.next(IncrementalCommon.scala:116)
|| [error] sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:56)
|| [error] sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:52)
|| [error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:261)
|| [error] sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:412)
|| [error] sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:499)
|| [error] sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:399)
|| [error] sbt.internal.inc.Incremental$.apply(Incremental.scala:166)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:528)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:482)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:420)
|| [error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
|| [error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2346)
|| [error] sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2303)
|| [error] sbt.internal.io.Retry$.apply(Retry.scala:46)
|| [error] sbt.internal.io.Retry$.apply(Retry.scala:28)
|| [error] sbt.internal.io.Retry$.apply(Retry.scala:23)
|| [error] sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:31)
|| [error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2299)
|| [error] scala.Function1.$anonfun$compose$1(Function1.scala:49)
|| [error] sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
|| [error] sbt.std.Transform$$anon$4.work(Transform.scala:68)
|| [error] sbt.Execute.$anonfun$submit$2(Execute.scala:282)
|| [error] sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
|| [error] sbt.Execute.work(Execute.scala:291)
|| [error] sbt.Execute.$anonfun$submit$1(Execute.scala:282)
|| [error] sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
|| [error] sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
|| [error] java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
|| [error] java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
|| [error] java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
|| [error] java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
|| [error] java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

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