Obtained 28 stack frames.
/usr/games/crawl-git-008097b4cb(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x555a49815dae]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-008097b4cb(_Z20crash_signal_handleri+0x18f) [0x555a4981621f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45320) [0x75d6c1222320]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x188599) [0x75d6c1365599]: 
/usr/games/crawl-git-008097b4cb(_ZNKSt8_Rb_treeINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESt4pairIKS5_15CrawlStoreValueESt10_Select1stIS9_ESt4lessIS5_ESaIS9_EE4findERS7_+0x68) [0x555a49e443d8]: std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, CrawlStoreValue>, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, CrawlStoreValue> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, CrawlStoreValue> > >::find(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const
/usr/games/crawl-git-008097b4cb(_ZNK14CrawlHashTable6existsERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x11) [0x555a49e412a1]: CrawlHashTable::exists(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const
/usr/games/crawl-git-008097b4cb(_Z14item_base_nameB5cxx11RK8item_def+0x64) [0x555a49a52674]: item_base_name[abi:cxx11](item_def const&)
/usr/games/crawl-git-008097b4cb(_ZNK8item_def8name_auxB5cxx11E22description_level_typebbb+0x15e7) [0x555a49a45b67]: item_def::name_aux[abi:cxx11](description_level_type, bool, bool, bool) const
/usr/games/crawl-git-008097b4cb(_ZNK8item_def4nameB5cxx11E22description_level_typebbbb+0x1b1) [0x555a49a47c71]: item_def::name[abi:cxx11](description_level_type, bool, bool, bool, bool) const
/usr/games/crawl-git-008097b4cb(_Z13do_crash_dumpv+0x1592) [0x555a49824fa2]: do_crash_dump()
/usr/games/crawl-git-008097b4cb(_Z20crash_signal_handleri+0x1fa) [0x555a4981628a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45320) [0x75d6c1222320]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x75d6c127bb1c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x75d6c122226e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x75d6c12058ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x75d6c12067b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8fe5) [0x75d6c1285fe5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab37c) [0x75d6c128837c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x75d6c128ad9e]: 
/usr/games/crawl-git-008097b4cb(_ZN12monster_infoD1Ev+0x8f) [0x555a497d647f]: monster_info::~monster_info()
/usr/games/crawl-git-008097b4cb(_ZN14TilesFramework10_send_cellERK9coord_defRK13screen_cell_tS5_RK8map_cellS8_RSt3mapIjS0_St4lessIjESaISt4pairIKjS0_EEEb+0xf33) [0x555a49f85d23]: TilesFramework::_send_cell(coord_def const&, screen_cell_t const&, screen_cell_t const&, map_cell const&, map_cell const&, std::map<unsigned int, coord_def, std::less<unsigned int>, std::allocator<std::pair<unsigned int const, coord_def> > >&, bool)
/usr/games/crawl-git-008097b4cb(_ZN14TilesFramework9_send_mapEb+0x486) [0x555a49f864e6]: TilesFramework::_send_map(bool)
/usr/games/crawl-git-008097b4cb(_ZN14TilesFramework6redrawEv+0xf3) [0x555a49f87603]: TilesFramework::redraw()
/usr/games/crawl-git-008097b4cb(+0xc304e1) [0x555a49f9a4e1]: 
/usr/games/crawl-git-008097b4cb(main+0x1f7) [0x555a4974f6f7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x75d6c12071ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x75d6c120728b]: 
/usr/games/crawl-git-008097b4cb(_start+0x25) [0x555a49750115]: