Failing template instantiation during tear down.

art: /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/include/clang/AST/DeclTemplate.h:1837: void clang::ClassTemplateSpecializationDecl::setInstantiationOf(clang::ClassTemplatePartialSpecializationDecl*, const clang::TemplateArgumentList*): Assertion `!SpecializedTemplate.is<SpecializedPartialSpecialization*>() && "Already set to a class template partial specialization!"' failed.

Program received signal SIGABRT, Aborted.

0x00007ffff089a377 in raise () from /lib64/libc.so.6

#1  0x00007ffff089ba68 in abort () from /lib64/libc.so.6

#2  0x00007ffff0893196 in __assert_fail_base () from /lib64/libc.so.6

#3  0x00007ffff0893242 in __assert_fail () from /lib64/libc.so.6

#4  0x00007fffe33d590f in clang::ClassTemplateSpecializationDecl::setInstantiationOf (this=0x7e8b810, PartialSpec=0x3b75340, TemplateArgs=0x7e91418)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/include/clang/AST/DeclTemplate.h:1837

#5  0x00007fffe3d4911d in getPatternForClassTemplateSpecialization (S=..., PointOfInstantiation=..., ClassTemplateSpec=0x7e8b810, TSK=clang::TSK_ImplicitInstantiation, Complain=true)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:2500

#6  0x00007fffe3d492c6 in clang::Sema::InstantiateClassTemplateSpecialization (this=0x7da020, PointOfInstantiation=..., ClassTemplateSpec=0x7e8b810, TSK=clang::TSK_ImplicitInstantiation, Complain=true)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:2538

#7  0x00007fffe3e0b218 in clang::Sema::RequireCompleteTypeImpl (this=0x7da020, Loc=..., T=..., Diagnoser=0x7fffffff53a0)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaType.cpp:7331

#8  0x00007fffe3e0a679 in clang::Sema::RequireCompleteType (this=0x7da020, Loc=..., T=..., Diagnoser=...) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaType.cpp:7109

#9  0x00007fffe3e0b5cb in clang::Sema::RequireCompleteType (this=0x7da020, Loc=..., T=..., DiagID=2479) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaType.cpp:7398

#10 0x00007fffe363cdc7 in clang::Sema::CheckFieldDecl (this=0x7da020, Name=..., T=..., TInfo=0x7e913e0, Record=0x7e8ed10, Loc=..., Mutable=false, BitWidth=0x0, InitStyle=clang::ICIS_ListInit, TSSL=..., AS=clang::AS_private,

    PrevDecl=0x0, D=0x0) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaDecl.cpp:14482

#11 0x00007fffe3d8c4de in clang::TemplateDeclInstantiator::VisitFieldDecl (this=0x7fffffff59f0, D=0x51e8548)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp:810

#12 0x00007fffe3d807a6 in clang::declvisitor::Base<clang::declvisitor::make_ptr, clang::TemplateDeclInstantiator, clang::Decl*>::Visit (this=0x7fffffff59f0, D=0x51e8548)

    at /scratch/greenc/test-products/root/v6_20_04/build/Linux64bit+3.10-2.17-e20-p382-debug/interpreter/llvm/src/tools/clang/include/clang/AST/DeclNodes.inc:369

#13 0x00007fffe3d4796c in clang::Sema::InstantiateClass (this=0x7da020, PointOfInstantiation=..., Instantiation=0x7e8ed10, Pattern=0x51e4900, TemplateArgs=..., TSK=clang::TSK_ImplicitInstantiation, Complain=true)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:2083

#14 0x00007fffe3d49340 in clang::Sema::InstantiateClassTemplateSpecialization (this=0x7da020, PointOfInstantiation=..., ClassTemplateSpec=0x7e8ed10, TSK=clang::TSK_ImplicitInstantiation, Complain=true)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:2543

#15 0x00007fffe3e0b218 in clang::Sema::RequireCompleteTypeImpl (this=0x7da020, Loc=..., T=..., Diagnoser=0x7fffffff5ff0)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaType.cpp:7331

#16 0x00007fffe3e0a679 in clang::Sema::RequireCompleteType (this=0x7da020, Loc=..., T=..., Diagnoser=...) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaType.cpp:7109

#17 0x00007fffe35607f9 in clang::Sema::RequireCompleteType<clang::SourceRange> (this=0x7da020, Loc=..., T=..., DiagID=2588)

    at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/include/clang/Sema/Sema.h:1653

--Type <RET> for more, q to quit, c to continue without paging--c

#18 0x00007fffe355c52a in clang::Sema::RequireCompleteDeclContext (this=0x7da020, SS=..., DC=@0x7fffffff61e0: 0x7e8ed48) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/llvm/src/tools/clang/lib/Sema/SemaCXXScopeSpec.cpp:235

#19 0x00007fffe28426bb in cling::LookupHelper::findScope (this=0x78a0e0, className=..., diagOnOff=cling::LookupHelper::NoDiagnostics, resultType=0x7fffffff65f0, instantiateTemplate=true) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/interpreter/cling/lib/Interpreter/LookupHelper.cpp:703

#20 0x00007fffe26b2ba8 in TClingClassInfo::TClingClassInfo (this=0x3e04b90, interp=0x77e5d0, name=0x6a1ad0 "art::Wrapper<art::Assns<string,int,void> >") at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/core/metacling/src/TClingClassInfo.cxx:95

#21 0x00007fffe26cacba in TCling::SetClassInfo (this=0x77bdf0, cl=0x3983b80, reload=true) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/core/metacling/src/TCling.cxx:3785

#22 0x00007ffff74d245f in TClass::SetUnloaded (this=0x3983b80) at /scratch/greenc/test-products/root/v6_20_04/source/root-6.20.04/core/meta/src/TClass.cxx:6081

#23 0x00000000004025f5 in main (argc=3, argv=0x7fffffff68f8) at /scratch/greenc/build/mrb-art-devel/e20-debug/build_slf7.x86_64/art/art/Framework/Art/art.cc:26