Obtained 37 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x591e9f207a1e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x591e9f207e8f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x75498ee42910]: 
/usr/games/crawl-0.34(+0xce15fb) [0x591e9f9f45fb]: 
/usr/games/crawl-0.34(lua_next+0x32) [0x591e9f9e6c02]: 
/usr/games/crawl-0.34(+0xcec321) [0x591e9f9ff321]: 
/usr/games/crawl-0.34(+0xcd6be3) [0x591e9f9e9be3]: 
/usr/games/crawl-0.34(+0xcd6e32) [0x591e9f9e9e32]: 
/usr/games/crawl-0.34(+0xce5734) [0x591e9f9f8734]: 
/usr/games/crawl-0.34(+0xcd6efd) [0x591e9f9e9efd]: 
/usr/games/crawl-0.34(+0xcd5d43) [0x591e9f9e8d43]: 
/usr/games/crawl-0.34(+0xcd7324) [0x591e9f9ea324]: 
/usr/games/crawl-0.34(lua_pcallk+0x95) [0x591e9f9e65d5]: 
/usr/games/crawl-0.34(_ZN4CLua5pcallEii+0x60) [0x591e9f1ec940]: CLua::pcall(int, int)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0xb4) [0x591e9f1ee264]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b94) [0x591e9f2173b4]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x591e9f207efa]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x75498ee42910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x75498ee9999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x75498ee42866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x75498ee268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x75498ee27750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x75498eea3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa47ae) [0x75498eea47ae]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5c13) [0x75498eea5c13]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x75498eea87f3]: 
/usr/games/crawl-0.34(+0xce98c1) [0x591e9f9fc8c1]: 
/usr/games/crawl-0.34(+0xcdaec9) [0x591e9f9edec9]: 
/usr/games/crawl-0.34(+0xce1765) [0x591e9f9f4765]: 
/usr/games/crawl-0.34(+0xcda626) [0x591e9f9ed626]: 
/usr/games/crawl-0.34(+0xce0316) [0x591e9f9f3316]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x591e9f1eeb4e]: CLua::close()
/usr/games/crawl-0.34(+0x2f4ffa) [0x591e9f007ffa]: 
/usr/games/crawl-0.34(+0x2f7fc3) [0x591e9f00afc3]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x75498ee280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x75498ee28189]: 
/usr/games/crawl-0.34(_start+0x25) [0x591e9f139f65]: