Obtained 27 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x641215048f1e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x64121504938f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x72c142ee3330]: 
/usr/games/crawl-0.34(+0xce1031) [0x641215835031]: 
/usr/games/crawl-0.34(+0xce1417) [0x641215835417]: 
/usr/games/crawl-0.34(lua_getglobal+0x22) [0x641215826aa2]: 
/usr/games/crawl-0.34(_ZN4CLua10pushglobalERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x16d) [0x64121502d28d]: CLua::pushglobal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0x80) [0x64121502f800]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b84) [0x6412150588a4]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x6412150493fa]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x72c142ee3330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x72c142f3cb2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x72c142ee327e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x72c142ec68ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x72c142ec77b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x72c142f46ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab12c) [0x72c142f4912c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x72c142f4bdae]: 
/usr/games/crawl-0.34(+0xce9ad1) [0x64121583dad1]: 
/usr/games/crawl-0.34(+0xcdb129) [0x64121582f129]: 
/usr/games/crawl-0.34(+0xce05bd) [0x6412158345bd]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x64121503011e]: CLua::close()
/usr/games/crawl-0.34(+0x2f5636) [0x641214e49636]: 
/usr/games/crawl-0.34(+0x2f8602) [0x641214e4c602]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x72c142ec81ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x72c142ec828b]: 
/usr/games/crawl-0.34(_start+0x25) [0x641214f7b5a5]: