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kubukoz opened this issue Mar 17, 2021 · 0 comments · Fixed by #11789
Closed

MatchError on TypeVar #11778

kubukoz opened this issue Mar 17, 2021 · 0 comments · Fixed by #11789
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itype:bug itype:crash

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@kubukoz
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kubukoz commented Mar 17, 2021

Compiler version

3.0.0-RC1

Minimized code

Couldn't find minimized code for this, hopefully the stack trace is enough...

Output (click arrow to expand)

[error] scala.MatchError: TypeVar(TypeParamRef(G)) (of class dotty.tools.dotc.core.Types$TypeVar)
[error] dotty.tools.dotc.typer.Inferencing$.argsInResult$1(Inferencing.scala:116)
[error] dotty.tools.dotc.typer.Inferencing$.couldInstantiateTypeVar(Inferencing.scala:118)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:562)
[error] dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:591)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:616)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2563)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:834)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:987)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:102)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2593)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:591)
[error] dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:616)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2563)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:834)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:987)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:102)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2593)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:975)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.caseRest$1(Typer.scala:1543)
[error] dotty.tools.dotc.typer.Typer.typedCase(Typer.scala:1552)
[error] dotty.tools.dotc.typer.Typer.typedCases$$anonfun$1(Typer.scala:1489)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.loop$1(Decorators.scala:92)
[error] dotty.tools.dotc.core.Decorators$ListDecorator$.mapconserve$extension(Decorators.scala:108)
[error] dotty.tools.dotc.typer.Typer.typedCases(Typer.scala:1491)
[error] dotty.tools.dotc.typer.Typer.$anonfun$21(Typer.scala:1481)
[error] dotty.tools.dotc.typer.Applications.harmonic(Applications.scala:2117)
[error] dotty.tools.dotc.typer.Applications.harmonic$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.harmonic(Typer.scala:102)
[error] dotty.tools.dotc.typer.Typer.typedMatchFinish(Typer.scala:1481)
[error] dotty.tools.dotc.typer.Typer.typedMatch(Typer.scala:1437)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2607)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Namer.typedAheadExpr$$anonfun$1(Namer.scala:1305)
[error] dotty.tools.dotc.typer.Namer.typedAhead(Namer.scala:1292)
[error] dotty.tools.dotc.typer.Namer.typedAheadExpr(Namer.scala:1305)
[error] dotty.tools.dotc.typer.Namer.valOrDefDefSig(Namer.scala:1490)
[error] dotty.tools.dotc.typer.Namer.defDefSig(Namer.scala:1562)
[error] dotty.tools.dotc.typer.Namer$Completer.typeSig(Namer.scala:703)
[error] dotty.tools.dotc.typer.Namer$Completer.completeInCreationContext(Namer.scala:826)
[error] dotty.tools.dotc.typer.Namer$Completer.complete(Namer.scala:727)
[error] dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:167)
[error] dotty.tools.dotc.core.Denotations$Denotation.completeInfo$1(Denotations.scala:188)
[error] dotty.tools.dotc.core.Denotations$Denotation.info(Denotations.scala:190)
[error] dotty.tools.dotc.core.SymDenotations$SymDenotation.ensureCompleted(SymDenotations.scala:369)
[error] dotty.tools.dotc.typer.Typer.retrieveSym(Typer.scala:2535)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2560)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2746)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:969)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:973)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedFunctionValue(Typer.scala:1314)
[error] dotty.tools.dotc.typer.Typer.typedFunction(Typer.scala:1096)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2603)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedMatch(Typer.scala:1385)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2607)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$2(ProtoTypes.scala:414)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.cacheTypedArg(ProtoTypes.scala:370)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArg(ProtoTypes.scala:415)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:802)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:802)
[error] dotty.tools.dotc.typer.Applications$Application.addTyped$1(Applications.scala:528)
[error] dotty.tools.dotc.typer.Applications$Application.matchArgs(Applications.scala:593)
[error] dotty.tools.dotc.typer.Applications$Application.init(Applications.scala:431)
[error] dotty.tools.dotc.typer.Applications$TypedApply.<init>(Applications.scala:697)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.<init>(Applications.scala:801)
[error] dotty.tools.dotc.typer.Applications.ApplyTo(Applications.scala:1012)
[error] dotty.tools.dotc.typer.Applications.ApplyTo$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.ApplyTo(Typer.scala:102)
[error] dotty.tools.dotc.typer.Applications.simpleApply$1(Applications.scala:859)
[error] dotty.tools.dotc.typer.Applications.realApply$5$$anonfun$4(Applications.scala:938)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2848)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:949)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:987)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:102)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2593)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:975)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.$anonfun$35(Typer.scala:2080)
[error] dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:223)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:2080)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2570)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2746)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:969)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:973)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedFunctionValue(Typer.scala:1314)
[error] dotty.tools.dotc.typer.Typer.typedFunction(Typer.scala:1096)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2603)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:975)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$2(ProtoTypes.scala:414)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.cacheTypedArg(ProtoTypes.scala:370)
[error] dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArg(ProtoTypes.scala:415)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:802)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:802)
[error] dotty.tools.dotc.typer.Applications$Application.addTyped$1(Applications.scala:528)
[error] dotty.tools.dotc.typer.Applications$Application.matchArgs(Applications.scala:593)
[error] dotty.tools.dotc.typer.Applications$Application.init(Applications.scala:431)
[error] dotty.tools.dotc.typer.Applications$TypedApply.<init>(Applications.scala:697)
[error] dotty.tools.dotc.typer.Applications$ApplyToUntyped.<init>(Applications.scala:801)
[error] dotty.tools.dotc.typer.Applications.ApplyTo(Applications.scala:1012)
[error] dotty.tools.dotc.typer.Applications.ApplyTo$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.ApplyTo(Typer.scala:102)
[error] dotty.tools.dotc.typer.Applications.simpleApply$1(Applications.scala:859)
[error] dotty.tools.dotc.typer.Applications.realApply$5$$anonfun$4(Applications.scala:938)
[error] dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2848)
[error] dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:949)
[error] dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:987)
[error] dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:301)
[error] dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:102)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2593)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:975)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.$anonfun$35(Typer.scala:2080)
[error] dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:223)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:2080)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2570)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2746)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:969)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:973)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedFunctionValue(Typer.scala:1314)
[error] dotty.tools.dotc.typer.Typer.typedFunction(Typer.scala:1096)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2603)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:975)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2601)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.Typer.$anonfun$35(Typer.scala:2080)
[error] dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:223)
[error] dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:2080)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2570)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2746)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2226)
[error] dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2581)
[error] dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2585)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2654)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2746)
[error] dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2796)
[error] dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2378)
[error] dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2626)
[error] dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2655)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2720)
[error] dotty.tools.dotc.typer.Typer.typed(Typer.scala:2724)
[error] dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2840)
[error] dotty.tools.dotc.typer.FrontEnd.liftedTree1$1(FrontEnd.scala:79)
[error] dotty.tools.dotc.typer.FrontEnd.typeCheck$$anonfun$1(FrontEnd.scala:84)
[error] dotty.tools.dotc.typer.FrontEnd.monitor(FrontEnd.scala:43)
[error] dotty.tools.dotc.typer.FrontEnd.typeCheck(FrontEnd.scala:85)
[error] dotty.tools.dotc.typer.FrontEnd.runOn$$anonfun$3(FrontEnd.scala:120)
[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.FrontEnd.runOn(FrontEnd.scala:120)
[error] dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:205)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
[error] scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
[error] scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
[error] dotty.tools.dotc.Run.runPhases$5(Run.scala:215)
[error] dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:223)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
[error] dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:67)
[error] dotty.tools.dotc.Run.compileUnits(Run.scala:230)
[error] dotty.tools.dotc.Run.compileSources(Run.scala:166)
[error] dotty.tools.dotc.Run.compile(Run.scala:150)
[error] dotty.tools.dotc.Driver.doCompile(Driver.scala:39)
[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$$anon$1.next(IncrementalCommon.scala:52)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:261)
[error] sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:412)
[error] sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:499)
[error] sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:399)
[error] sbt.internal.inc.Incremental$.apply(Incremental.scala:166)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:528)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:482)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:420)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2311)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2268)
[error] sbt.internal.io.Retry$.apply(Retry.scala:46)
[error] sbt.internal.io.Retry$.apply(Retry.scala:28)
[error] sbt.internal.io.Retry$.apply(Retry.scala:23)
[error] sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:31)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2264)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] sbt.internal.util.$tilde$greater.$anonfun$$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)
[error] java.base/java.lang.Thread.run(Thread.java:834)
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Add missing case to couldInstantiateTypeVar dotty-staging/dotty
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@kubukoz