asan error

=================================================================
==2342311==ERROR: AddressSanitizer: heap-use-after-free on address 0x6030004541e4 at pc 0x7ff218ebce95 bp 0x7ff1fe2bc850 sp 0x7ff1fe2bc848
READ of size 4 at 0x6030004541e4 thread T6
    #0 0x7ff218ebce94 in wasm::Type::isTuple() const (/bin/../lib/libbinaryen.so+0x125e0e94)
    #1 0x7ff218fa852b in wasm::TypeBuilder::build() (/bin/../lib/libbinaryen.so+0x126cc52b)
    #2 0x7ff218fbda5f in wasm::Type::getLeastUpperBound(wasm::Type, wasm::Type) (/bin/../lib/libbinaryen.so+0x126e1a5f)
    #3 0x7ff2186f5006 in wasm::If::finalize() (/bin/../lib/libbinaryen.so+0x11e19006)
    #4 0x56004b397f60 in wasm::Walker<wasm::ReFinalize, wasm::OverriddenVisitor<wasm::ReFinalize, void> >::walk(wasm::Expression*&) (/bin/wasm-opt+0xce3f60)
    #5 0x7ff2178918ed in wasm::RemoveUnusedBrs::doWalkFunction(wasm::Function*) (/bin/../lib/libbinaryen.so+0x10fb58ed)
    #6 0x7ff2178973ec in wasm::WalkerPass<wasm::PostWalker<wasm::RemoveUnusedBrs, wasm::Visitor<wasm::RemoveUnusedBrs, void> > >::runOnFunction(wasm::PassRunner*, wasm::Module*, wasm::Function*) (/bin/../lib/libbinaryen.so+0x10fbb3ec)
    #7 0x7ff2147a6cac in wasm::PassRunner::runPassOnFunction(wasm::Pass*, wasm::Function*) (/bin/../lib/libbinaryen.so+0xdecacac)
    #8 0x7ff2147a8781 in std::_Function_handler<wasm::ThreadWorkState (), wasm::PassRunner::run()::{lambda()#2}::operator()() const::{lambda()#1}>::_M_invoke(std::_Any_data const&) (/bin/../lib/libbinaryen.so+0xdecc781)
    #9 0x7ff219ae0008 in wasm::Thread::mainLoop(void*) (/bin/../lib/libbinaryen.so+0x13204008)
    #10 0x7ff2067939d2  (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd49d2)
    #11 0x7ff205f0dd7f in start_thread nptl/pthread_create.c:481
    #12 0x7ff205e2776e in clone (/lib/x86_64-linux-gnu/libc.so.6+0xfa76e)

0x6030004541e4 is located 4 bytes inside of 32-byte region [0x6030004541e0,0x603000454200)
freed by thread T2 here:
    #0 0x7ff22a360db7 in operator delete(void*, unsigned long) ../../../../src/libsanitizer/asan/asan_new_delete.cpp:172
    #1 0x7ff218ea7e97 in std::default_delete<wasm::TypeBuilder::Impl>::operator()(wasm::TypeBuilder::Impl*) const [clone .part.0] (/bin/../lib/libbinaryen.so+0x125cbe97)
    #2 0x7ff218ecf113 in wasm::TypeBuilder::~TypeBuilder() (/bin/../lib/libbinaryen.so+0x125f3113)
    #3 0x7ff218fbd661 in wasm::Type::getLeastUpperBound(wasm::Type, wasm::Type) (/bin/../lib/libbinaryen.so+0x126e1661)
    #4 0x7ff2186f5006 in wasm::If::finalize() (/bin/../lib/libbinaryen.so+0x11e19006)
    #5 0x56004b397f60 in wasm::Walker<wasm::ReFinalize, wasm::OverriddenVisitor<wasm::ReFinalize, void> >::walk(wasm::Expression*&) (/bin/wasm-opt+0xce3f60)
    #6 0x7ff2178918ed in wasm::RemoveUnusedBrs::doWalkFunction(wasm::Function*) (/bin/../lib/libbinaryen.so+0x10fb58ed)
    #7 0x7ff2178973ec in wasm::WalkerPass<wasm::PostWalker<wasm::RemoveUnusedBrs, wasm::Visitor<wasm::RemoveUnusedBrs, void> > >::runOnFunction(wasm::PassRunner*, wasm::Module*, wasm::Function*) (/bin/../lib/libbinaryen.so+0x10fbb3ec)
    #8 0x7ff2147a6cac in wasm::PassRunner::runPassOnFunction(wasm::Pass*, wasm::Function*) (/bin/../lib/libbinaryen.so+0xdecacac)
    #9 0x7ff2147a8781 in std::_Function_handler<wasm::ThreadWorkState (), wasm::PassRunner::run()::{lambda()#2}::operator()() const::{lambda()#1}>::_M_invoke(std::_Any_data const&) (/bin/../lib/libbinaryen.so+0xdecc781)
    #10 0x7ff219ae0008 in wasm::Thread::mainLoop(void*) (/bin/../lib/libbinaryen.so+0x13204008)
    #11 0x7ff2067939d2  (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd49d2)

previously allocated by thread T2 here:
    #0 0x7ff22a35ff37 in operator new(unsigned long) ../../../../src/libsanitizer/asan/asan_new_delete.cpp:99
    #1 0x7ff218eead81 in wasm::Type wasm::(anonymous namespace)::Store<wasm::(anonymous namespace)::TypeInfo>::doInsert<wasm::(anonymous namespace)::TypeInfo const>(wasm::(anonymous namespace)::TypeInfo const&) (/bin/../lib/libbinaryen.so+0x1260ed81)
    #2 0x7ff218ef4f8c in wasm::TypeBuilder::getTempRefType(wasm::HeapType, wasm::Nullability) (/bin/../lib/libbinaryen.so+0x12618f8c)
    #3 0x7ff218f578e1 in wasm::(anonymous namespace)::TypeBounder::lub(wasm::Type, wasm::Type) (/bin/../lib/libbinaryen.so+0x1267b8e1)
    #4 0x7ff218fbd391 in wasm::Type::getLeastUpperBound(wasm::Type, wasm::Type) (/bin/../lib/libbinaryen.so+0x126e1391)
    #5 0x7ff2186f5006 in wasm::If::finalize() (/bin/../lib/libbinaryen.so+0x11e19006)
    #6 0x56004b397f60 in wasm::Walker<wasm::ReFinalize, wasm::OverriddenVisitor<wasm::ReFinalize, void> >::walk(wasm::Expression*&) (/bin/wasm-opt+0xce3f60)
    #7 0x7ff2178918ed in wasm::RemoveUnusedBrs::doWalkFunction(wasm::Function*) (/bin/../lib/libbinaryen.so+0x10fb58ed)
    #8 0x7ff2178973ec in wasm::WalkerPass<wasm::PostWalker<wasm::RemoveUnusedBrs, wasm::Visitor<wasm::RemoveUnusedBrs, void> > >::runOnFunction(wasm::PassRunner*, wasm::Module*, wasm::Function*) (/bin/../lib/libbinaryen.so+0x10fbb3ec)
    #9 0x7ff2147a6cac in wasm::PassRunner::runPassOnFunction(wasm::Pass*, wasm::Function*) (/bin/../lib/libbinaryen.so+0xdecacac)
    #10 0x7ff2147a8781 in std::_Function_handler<wasm::ThreadWorkState (), wasm::PassRunner::run()::{lambda()#2}::operator()() const::{lambda()#1}>::_M_invoke(std::_Any_data const&) (/bin/../lib/libbinaryen.so+0xdecc781)
    #11 0x7ff219ae0008 in wasm::Thread::mainLoop(void*) (/bin/../lib/libbinaryen.so+0x13204008)
    #12 0x7ff2067939d2  (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd49d2)

Thread T6 created by T0 here:
    #0 0x7ff22a306716 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cpp:216
    #1 0x7ff206793cdb in std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd4cdb)
    #2 0x7ff219adee21 in wasm::Thread::Thread(wasm::ThreadPool*) (/bin/../lib/libbinaryen.so+0x13202e21)
    #3 0x7ff219ae2679 in wasm::ThreadPool::initialize(unsigned long) (/bin/../lib/libbinaryen.so+0x13206679)
    #4 0x7ff219ae3387 in wasm::ThreadPool::get() (/bin/../lib/libbinaryen.so+0x13207387)
    #5 0x7ff2147b13a7 in wasm::PassRunner::run()::{lambda()#2}::operator()() const (/bin/../lib/libbinaryen.so+0xded53a7)
    #6 0x7ff2147b7484 in wasm::PassRunner::run() (/bin/../lib/libbinaryen.so+0xdedb484)
    #7 0x7ff219167037 in wasm::WalkerPass<wasm::PostWalker<wasm::FunctionValidator, wasm::Visitor<wasm::FunctionValidator, void> > >::run(wasm::PassRunner*, wasm::Module*) (/bin/../lib/libbinaryen.so+0x1288b037)
    #8 0x7ff2190fe3c0 in wasm::WasmValidator::validate(wasm::Module&, unsigned int) (/bin/../lib/libbinaryen.so+0x128223c0)
    #9 0x56004b07f575 in main (/bin/wasm-opt+0x9cb575)
    #10 0x7ff205d507fc in __libc_start_main ../csu/libc-start.c:332

Thread T2 created by T0 here:
    #0 0x7ff22a306716 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cpp:216
    #1 0x7ff206793cdb in std::thread::_M_start_thread(std::unique_ptr<std::thread::_State, std::default_delete<std::thread::_State> >, void (*)()) (/usr/lib/x86_64-linux-gnu/libstdc++.so.6+0xd4cdb)
    #2 0x7ff219adee21 in wasm::Thread::Thread(wasm::ThreadPool*) (/bin/../lib/libbinaryen.so+0x13202e21)
    #3 0x7ff219ae2679 in wasm::ThreadPool::initialize(unsigned long) (/bin/../lib/libbinaryen.so+0x13206679)
    #4 0x7ff219ae3387 in wasm::ThreadPool::get() (/bin/../lib/libbinaryen.so+0x13207387)
    #5 0x7ff2147b13a7 in wasm::PassRunner::run()::{lambda()#2}::operator()() const (/bin/../lib/libbinaryen.so+0xded53a7)
    #6 0x7ff2147b7484 in wasm::PassRunner::run() (/bin/../lib/libbinaryen.so+0xdedb484)
    #7 0x7ff219167037 in wasm::WalkerPass<wasm::PostWalker<wasm::FunctionValidator, wasm::Visitor<wasm::FunctionValidator, void> > >::run(wasm::PassRunner*, wasm::Module*) (/bin/../lib/libbinaryen.so+0x1288b037)
    #8 0x7ff2190fe3c0 in wasm::WasmValidator::validate(wasm::Module&, unsigned int) (/bin/../lib/libbinaryen.so+0x128223c0)
    #9 0x56004b07f575 in main (/bin/wasm-opt+0x9cb575)
    #10 0x7ff205d507fc in __libc_start_main ../csu/libc-start.c:332

SUMMARY: AddressSanitizer: heap-use-after-free (/bin/../lib/libbinaryen.so+0x125e0e94) in wasm::Type::isTuple() const
Shadow bytes around the buggy address:
  0x0c06800827e0: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
  0x0c06800827f0: fd fd fa fa fd fd fd fd fa fa fd fd fd fd fa fa
  0x0c0680082800: fd fd fd fa fa fa fd fd fd fd fa fa fd fd fd fd
  0x0c0680082810: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
  0x0c0680082820: fd fd fa fa fd fd fd fa fa fa fd fd fd fd fa fa
=>0x0c0680082830: fd fd fd fd fa fa fd fd fd fa fa fa[fd]fd fd fd
  0x0c0680082840: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
  0x0c0680082850: fd fa fa fa fd fd fd fd fa fa 00 00 00 fa fa fa
  0x0c0680082860: fd fd fd fa fa fa fd fd fd fd fa fa fd fd fd fa
  0x0c0680082870: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
  0x0c0680082880: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc
==2342311==ABORTING