Obtained 36 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x627541c29a9e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x627541c29f0f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x74a50e442910]: 
/usr/games/crawl-0.34(+0xce2110) [0x627542417110]: 
/usr/games/crawl-0.34(lua_rawget+0x1d) [0x62754240820d]: 
/usr/games/crawl-0.34(+0xcea17b) [0x62754241f17b]: 
/usr/games/crawl-0.34(+0xcecf77) [0x627542421f77]: 
/usr/games/crawl-0.34(+0xcd72c3) [0x62754240c2c3]: 
/usr/games/crawl-0.34(+0xce6535) [0x62754241b535]: 
/usr/games/crawl-0.34(+0xcd75dd) [0x62754240c5dd]: 
/usr/games/crawl-0.34(+0xcd6423) [0x62754240b423]: 
/usr/games/crawl-0.34(+0xcd7a04) [0x62754240ca04]: 
/usr/games/crawl-0.34(lua_pcallk+0x95) [0x627542408cb5]: 
/usr/games/crawl-0.34(_ZN4CLua5pcallEii+0x60) [0x627541c0e9c0]: CLua::pcall(int, int)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0xb4) [0x627541c102e4]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b94) [0x627541c39454]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x627541c29f7a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x74a50e442910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x74a50e49999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x74a50e442866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x74a50e4268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x74a50e427750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x74a50e4a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5ea4) [0x74a50e4a5ea4]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x74a50e4a87f3]: 
/usr/games/crawl-0.34(+0xce9fa1) [0x62754241efa1]: 
/usr/games/crawl-0.34(+0xcdb5a9) [0x6275424105a9]: 
/usr/games/crawl-0.34(+0xcd8929) [0x62754240d929]: 
/usr/games/crawl-0.34(+0xcdad06) [0x62754240fd06]: 
/usr/games/crawl-0.34(+0xce09f6) [0x6275424159f6]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x627541c10bce]: CLua::close()
/usr/games/crawl-0.34(+0x2f5028) [0x627541a2a028]: 
/usr/games/crawl-0.34(+0x2f7ff1) [0x627541a2cff1]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x74a50e4280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x74a50e428189]: 
/usr/games/crawl-0.34(_start+0x25) [0x627541b5bf95]: