#0  0x00007fb1f88b8588 in bmalloc::FreeList::initializeList (this=0x7ffd7e5abf60, head=<optimized out>, secret=140402433444016, bytes=0) at ./Source/bmalloc/bmalloc/FreeList.cpp:50
  [Error: FreeList.cpp was not found in source tree]
#1  0x00007fb1fe249170 in audit_list_string ()
#2  0x0000000800000000 in ?? ()
#3  0x00007fb1f891356f in ?? () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#4  0x00007fb1f8913576 in ?? () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#5  0x1f74f04dbab1fddf in ?? ()
#6  0x00000000f8913595 in ?? ()
#7  0x0000000200000001 in ?? ()
#8  0x50c29a234a5f5b00 in ?? ()
#9  0x00007fb1f89135dd in ?? () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18
#10 0x00007fb1f8b2002c in ?? () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#11 0x00007fb1ef975490 in ?? () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007ffd7e5ae7b0 in ?? ()
#13 0x00007fb1fb429d98 in WebCore::ShapeOutsideInfo::infoMap()::staticInfoMap () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#14 0x00007fb1fb2577c8 in __frame_dummy_init_array_entry () from /tmp/apport_sandbox_8LHLFd/usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37
#15 0x00007fb1fe249170 in audit_list_string ()
#16 0x00007fb1fd2cf827 in __pthread_once_slow (once_control=0x2000000000, init_routine=0x7ffd7e5ae75c) at pthread_once.c:116
  [Error: pthread_once.c was not found in source tree]
#17 0x00007fb1f88b7e0d in bmalloc::StaticMutex::lock (this=0x7fb1f8b1a6f0 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_mutex>) at ./Source/bmalloc/bmalloc/StaticMutex.h:93
  [Error: StaticMutex.h was not found in source tree]
#18 std::lock_guard<bmalloc::StaticMutex>::lock_guard (__m=..., this=0x7ffd7e5ae800) at /usr/include/c++/7/bits/std_mutex.h:162
  [Error: std_mutex.h was not found in source tree]
#19 bmalloc::Deallocator::deallocateSlowCase (this=0x7fb1f8b1ce50 <bmalloc::PerProcess<bmalloc::PerHeapKind<bmalloc::Heap> >::s_memory+10032>, object=0x7fb1f8b20108 <bmalloc::vmPageSizePhysical()::cached>) at ./Source/bmalloc/bmalloc/Deallocator.cpp:84
  [Error: Deallocator.cpp was not found in source tree]
#20 0x00007fb1f88b8d01 in Gigacage::<lambda()>::operator() (__closure=<optimized out>) at ./Source/bmalloc/bmalloc/Gigacage.cpp:111
  [Error: Gigacage.cpp was not found in source tree]
#21 std::__invoke_impl<void, Gigacage::ensureGigacage()::<lambda()> > (__f=...) at /usr/include/c++/7/bits/invoke.h:60
  [Error: invoke.h was not found in source tree]
#22 std::__invoke<Gigacage::ensureGigacage()::<lambda()> > (__fn=...) at /usr/include/c++/7/bits/invoke.h:95
  [Error: invoke.h was not found in source tree]
#23 std::<lambda()>::operator() (__closure=<optimized out>) at /usr/include/c++/7/mutex:672
  [Error: mutex was not found in source tree]
#24 std::<lambda()>::operator() (__closure=0x0) at /usr/include/c++/7/mutex:677
  [Error: mutex was not found in source tree]
#25 std::<lambda()>::_FUN(void) () at /usr/include/c++/7/mutex:677
  [Error: mutex was not found in source tree]
#26 0x00007fb1f88b67d4 in bmalloc::BumpAllocator::BumpAllocator (this=0xbbadbedf) at ./Source/bmalloc/bmalloc/BumpAllocator.h:61
  [Error: BumpAllocator.h was not found in source tree]
#27 std::array<bmalloc::BumpAllocator, 112ul>::array (this=0x7ffd7e5abf60) at /usr/include/c++/7/array:94
  [Error: array was not found in source tree]
#28 bmalloc::Allocator::Allocator (this=0x7ffd7e5abf60, heap=..., deallocator=...) at ./Source/bmalloc/bmalloc/Allocator.cpp:44
  [Error: Allocator.cpp was not found in source tree]
#29 0x0000000000000018 in ?? ()
#30 0x0000000000000003 in ?? ()
#31 0x0000000000000002 in ?? ()
#32 0x00007fb1fe241410 in ?? ()
#33 0x00007fb1fe237000 in ?? ()
#34 0x00007fb1f88b6bf6 in bmalloc::Allocator::allocateSlowCase (this=0x7ffd7e5abf60, size=101) at ./Source/bmalloc/bmalloc/Allocator.cpp:186
  [Error: Allocator.cpp was not found in source tree]
#35 0x0000000000000000 in ?? ()