Obtained 20 stack frames.
/usr/games/crawl-git-8436cd0d56(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5f49477eee4e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-8436cd0d56(_Z20crash_signal_handleri+0x18f) [0x5f49477ef2bf]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x794212842910]: 
/usr/games/crawl-git-8436cd0d56(_Z13handle_hangupi+0) [0x5f4947ab0ed0]: handle_hangup(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x794212842910]: 
/lib/x86_64-linux-gnu/libc.so.6(wait4+0x15) [0x79421290fbf5]: 
/usr/games/crawl-git-8436cd0d56(_Z8call_gdbP8_IO_FILE+0xec) [0x5f49477ef4fc]: call_gdb(_IO_FILE*)
/usr/games/crawl-git-8436cd0d56(_Z13do_crash_dumpv+0x458) [0x5f49477fcf18]: do_crash_dump()
/usr/games/crawl-git-8436cd0d56(_Z20crash_signal_handleri+0x1fa) [0x5f49477ef32a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x794212842910]: 
/usr/games/crawl-git-8436cd0d56(_Z16you_teleport_nowbbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x213) [0x5f4947de1d53]: you_teleport_now(bool, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)
/usr/games/crawl-git-8436cd0d56(+0xacdec4) [0x5f4947e10ec4]: 
/usr/games/crawl-git-8436cd0d56(_Z13player_reactsv+0x765) [0x5f4947cc1915]: player_reacts()
/usr/games/crawl-git-8436cd0d56(_Z12world_reactsv+0x7b5) [0x5f4947f71c35]: world_reacts()
/usr/games/crawl-git-8436cd0d56(+0xc30909) [0x5f4947f73909]: 
/usr/games/crawl-git-8436cd0d56(+0xc31605) [0x5f4947f74605]: 
/usr/games/crawl-git-8436cd0d56(main+0x1f7) [0x5f49477285b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7942128280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x794212828189]: 
/usr/games/crawl-git-8436cd0d56(_start+0x25) [0x5f4947728fd5]: