Obtained 25 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5982c3b86a1e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x5982c3b86e8f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7178ce042910]: 
/usr/games/crawl-0.34(lua_getglobal+0x25) [0x5982c4364845]: 
/usr/games/crawl-0.34(_ZN4CLua10pushglobalERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x16d) [0x5982c3b6acbd]: CLua::pushglobal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0x80) [0x5982c3b6d230]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b94) [0x5982c3b963b4]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x5982c3b86efa]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x7178ce042910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x7178ce09999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x7178ce042866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x7178ce0268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x7178ce027750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x7178ce0a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5c5c) [0x7178ce0a5c5c]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x7178ce0a87f3]: 
/usr/games/crawl-0.34(+0xce98c1) [0x5982c437b8c1]: 
/usr/games/crawl-0.34(+0xcdaec9) [0x5982c436cec9]: 
/usr/games/crawl-0.34(+0xce033d) [0x5982c437233d]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x5982c3b6db4e]: CLua::close()
/usr/games/crawl-0.34(+0x2f4ffa) [0x5982c3986ffa]: 
/usr/games/crawl-0.34(+0x2f7fc3) [0x5982c3989fc3]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x7178ce0280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x7178ce028189]: 
/usr/games/crawl-0.34(_start+0x25) [0x5982c3ab8f65]: