Obtained 18 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x60cbe5c2195e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x60cbe5c21dcf]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7b38a5842910]: 
/usr/games/crawl-0.34(_Z13handle_hangupi+0) [0x60cbe5eeb050]: handle_hangup(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7b38a5842910]: 
/lib/x86_64-linux-gnu/libc.so.6(wait4+0x15) [0x7b38a590fbf5]: 
/usr/games/crawl-0.34(_Z8call_gdbP8_IO_FILE+0xec) [0x60cbe5c2200c]: call_gdb(_IO_FILE*)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x458) [0x60cbe5c2fbb8]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x60cbe5c21e3a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7b38a5842910]: 
/usr/games/crawl-0.34(+0xcd931b) [0x60cbe640631b]: 
/usr/games/crawl-0.34(+0xcdf016) [0x60cbe640c016]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x60cbe5c08a8e]: CLua::close()
/usr/games/crawl-0.34(+0x2f4f36) [0x60cbe5a21f36]: 
/usr/games/crawl-0.34(+0x2f7eff) [0x60cbe5a24eff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7b38a58280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x7b38a5828189]: 
/usr/games/crawl-0.34(_start+0x25) [0x60cbe5b53ea5]: