Obtained 36 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x63db8fd19b1e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x63db8fd19f8f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7792e1042910]: 
/usr/games/crawl-0.34(+0xce264b) [0x63db9050764b]: 
/usr/games/crawl-0.34(lua_next+0x32) [0x63db904f9c52]: 
/usr/games/crawl-0.34(+0xced371) [0x63db90512371]: 
/usr/games/crawl-0.34(+0xcd7c33) [0x63db904fcc33]: 
/usr/games/crawl-0.34(+0xcd7e82) [0x63db904fce82]: 
/usr/games/crawl-0.34(+0xce6784) [0x63db9050b784]: 
/usr/games/crawl-0.34(+0xcd7f4d) [0x63db904fcf4d]: 
/usr/games/crawl-0.34(+0xcd6d93) [0x63db904fbd93]: 
/usr/games/crawl-0.34(+0xcd8374) [0x63db904fd374]: 
/usr/games/crawl-0.34(lua_pcallk+0x95) [0x63db904f9625]: 
/usr/games/crawl-0.34(_ZN4CLua5pcallEii+0x60) [0x63db8fcfea40]: CLua::pcall(int, int)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0xb4) [0x63db8fd00364]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b94) [0x63db8fd294d4]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x63db8fd19ffa]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7792e1042910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x7792e109999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x7792e1042866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x7792e10268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x7792e1027750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x7792e10a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5c5c) [0x7792e10a5c5c]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x7792e10a87f3]: 
/usr/games/crawl-0.34(+0xcea911) [0x63db9050f911]: 
/usr/games/crawl-0.34(+0xcdbf19) [0x63db90500f19]: 
/usr/games/crawl-0.34(+0xcd9261) [0x63db904fe261]: 
/usr/games/crawl-0.34(+0xcdb676) [0x63db90500676]: 
/usr/games/crawl-0.34(+0xce1366) [0x63db90506366]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x63db8fd00c4e]: CLua::close()
/usr/games/crawl-0.34(+0x2f50ac) [0x63db8fb1a0ac]: 
/usr/games/crawl-0.34(+0x2f8075) [0x63db8fb1d075]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7792e10280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x7792e1028189]: 
/usr/games/crawl-0.34(_start+0x25) [0x63db8fc4c015]: