Obtained 37 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x610f24ea6a1e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x610f24ea6e8f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x714d81242910]: 
/usr/games/crawl-0.34(+0xce15fb) [0x610f256935fb]: 
/usr/games/crawl-0.34(lua_next+0x32) [0x610f25685c02]: 
/usr/games/crawl-0.34(+0xcec321) [0x610f2569e321]: 
/usr/games/crawl-0.34(+0xcd6be3) [0x610f25688be3]: 
/usr/games/crawl-0.34(+0xcd6e32) [0x610f25688e32]: 
/usr/games/crawl-0.34(+0xce5734) [0x610f25697734]: 
/usr/games/crawl-0.34(+0xcd6efd) [0x610f25688efd]: 
/usr/games/crawl-0.34(+0xcd5d43) [0x610f25687d43]: 
/usr/games/crawl-0.34(+0xcd7324) [0x610f25689324]: 
/usr/games/crawl-0.34(lua_pcallk+0x95) [0x610f256855d5]: 
/usr/games/crawl-0.34(_ZN4CLua5pcallEii+0x60) [0x610f24e8b940]: CLua::pcall(int, int)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0xb4) [0x610f24e8d264]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b94) [0x610f24eb63b4]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x610f24ea6efa]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x714d81242910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x714d8129999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x714d81242866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x714d812268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x714d81227750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x714d812a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa47ae) [0x714d812a47ae]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5c13) [0x714d812a5c13]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x714d812a87f3]: 
/usr/games/crawl-0.34(+0xce98c1) [0x610f2569b8c1]: 
/usr/games/crawl-0.34(+0xcdaec9) [0x610f2568cec9]: 
/usr/games/crawl-0.34(+0xce1765) [0x610f25693765]: 
/usr/games/crawl-0.34(+0xcda626) [0x610f2568c626]: 
/usr/games/crawl-0.34(+0xce0316) [0x610f25692316]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x610f24e8db4e]: CLua::close()
/usr/games/crawl-0.34(+0x2f4ffa) [0x610f24ca6ffa]: 
/usr/games/crawl-0.34(+0x2f7fc3) [0x610f24ca9fc3]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x714d812280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x714d81228189]: 
/usr/games/crawl-0.34(_start+0x25) [0x610f24dd8f65]: