Obtained 37 stack frames.
/usr/games/crawl-git-43051b6e75(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5f9e108c939e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-43051b6e75(_Z20crash_signal_handleri+0x18f) [0x5f9e108c980f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x74ebe5633330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x74ebe568cb2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x74ebe563327e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x74ebe56168ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x74ebe56177b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x74ebe5696ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa9d5c) [0x74ebe5697d5c]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xaba90) [0x74ebe5699a90]: 
/lib/x86_64-linux-gnu/libc.so.6(malloc+0x1a2) [0x74ebe569b7f2]: 
/lib/x86_64-linux-gnu/libc.so.6(opendir+0x8c) [0x74ebe56db60c]: 
/usr/games/crawl-git-43051b6e75(_Z10dir_existsRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x31) [0x5f9e10f34991]: dir_exists(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-43051b6e75(_Z11check_mkdirRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPS4_b+0xf6) [0x5f9e109d3116]: check_mkdir(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool)
/usr/games/crawl-git-43051b6e75(+0x5fb61e) [0x5f9e109d361e]: 
/usr/games/crawl-git-43051b6e75(_Z20get_savedir_filenameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x3b) [0x5f9e109d787b]: get_savedir_filename(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-43051b6e75(_Z13do_crash_dumpv+0x255) [0x5f9e108d73f5]: do_crash_dump()
/usr/games/crawl-git-43051b6e75(_Z20crash_signal_handleri+0x1fa) [0x5f9e108c987a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x74ebe5633330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x74ebe568cb2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x74ebe563327e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x74ebe56168ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x74ebe56177b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x74ebe5696ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab12c) [0x74ebe569912c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x74ebe569bdae]: 
/usr/games/crawl-git-43051b6e75(+0xcdf9f1) [0x5f9e110b79f1]: 
/usr/games/crawl-git-43051b6e75(+0xcd1049) [0x5f9e110a9049]: 
/usr/games/crawl-git-43051b6e75(+0xcce3b9) [0x5f9e110a63b9]: 
/usr/games/crawl-git-43051b6e75(+0xcd07a6) [0x5f9e110a87a6]: 
/usr/games/crawl-git-43051b6e75(+0xcd64b6) [0x5f9e110ae4b6]: 
/usr/games/crawl-git-43051b6e75(_ZN4CLua5closeEv+0xbe) [0x5f9e108b059e]: CLua::close()
/usr/games/crawl-git-43051b6e75(+0x2f2c74) [0x5f9e106cac74]: 
/usr/games/crawl-git-43051b6e75(+0x2f5c40) [0x5f9e106cdc40]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x74ebe56181ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x74ebe561828b]: 
/usr/games/crawl-git-43051b6e75(_start+0x25) [0x5f9e107fbf45]: