Obtained 26 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x623b07ee5f4e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x623b07ee63bf]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x712aecdb2330]: 
/usr/games/crawl-0.34(+0xce2298) [0x623b086d3298]: 
/usr/games/crawl-0.34(lua_getglobal+0x84) [0x623b086c41b4]: 
/usr/games/crawl-0.34(_ZN4CLua10pushglobalERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x16d) [0x623b07eca2bd]: CLua::pushglobal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_ZN4CLua6callfnEPKcii+0x80) [0x623b07ecc830]: CLua::callfn(char const*, int, int)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x1b84) [0x623b07ef58f4]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x623b07ee642a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x712aecdb2330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x712aece0bb2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x712aecdb227e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x712aecd958ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x712aecd967b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x712aece15ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab12c) [0x712aece1812c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x712aece1adae]: 
/usr/games/crawl-0.34(+0xcea181) [0x623b086db181]: 
/usr/games/crawl-0.34(+0xcdb7d9) [0x623b086cc7d9]: 
/usr/games/crawl-0.34(+0xce0c6d) [0x623b086d1c6d]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x623b07ecd14e]: CLua::close()
/usr/games/crawl-0.34(+0x2f5666) [0x623b07ce6666]: 
/usr/games/crawl-0.34(+0x2f8632) [0x623b07ce9632]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x712aecd971ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x712aecd9728b]: 
/usr/games/crawl-0.34(_start+0x25) [0x623b07e185d5]: