Obtained 37 stack frames.
/usr/games/crawl-git-17a993e2a6(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x622b1c49a39e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-17a993e2a6(_Z20crash_signal_handleri+0x18f) [0x622b1c49a80f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7218ba9df330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7218baa38b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7218ba9df27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7218ba9c28ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7218ba9c37b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7218baa42ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa9d68) [0x7218baa43d68]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xaba90) [0x7218baa45a90]: 
/lib/x86_64-linux-gnu/libc.so.6(malloc+0x1a2) [0x7218baa477f2]: 
/lib/x86_64-linux-gnu/libc.so.6(opendir+0x8c) [0x7218baa8760c]: 
/usr/games/crawl-git-17a993e2a6(_Z10dir_existsRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x31) [0x622b1cb05991]: dir_exists(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-17a993e2a6(_Z11check_mkdirRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPS4_b+0xf6) [0x622b1c5a4116]: 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-17a993e2a6(+0x5fb61e) [0x622b1c5a461e]: 
/usr/games/crawl-git-17a993e2a6(_Z20get_savedir_filenameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x3b) [0x622b1c5a887b]: get_savedir_filename(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-17a993e2a6(_Z13do_crash_dumpv+0x255) [0x622b1c4a83f5]: do_crash_dump()
/usr/games/crawl-git-17a993e2a6(_Z20crash_signal_handleri+0x1fa) [0x622b1c49a87a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x7218ba9df330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x7218baa38b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x7218ba9df27e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x7218ba9c28ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x7218ba9c37b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x7218baa42ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab12c) [0x7218baa4512c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x7218baa47dae]: 
/usr/games/crawl-git-17a993e2a6(+0xcdfa11) [0x622b1cc88a11]: 
/usr/games/crawl-git-17a993e2a6(+0xcd1069) [0x622b1cc7a069]: 
/usr/games/crawl-git-17a993e2a6(+0xcce3d9) [0x622b1cc773d9]: 
/usr/games/crawl-git-17a993e2a6(+0xcd07c6) [0x622b1cc797c6]: 
/usr/games/crawl-git-17a993e2a6(+0xcd64d6) [0x622b1cc7f4d6]: 
/usr/games/crawl-git-17a993e2a6(_ZN4CLua5closeEv+0xbe) [0x622b1c48159e]: CLua::close()
/usr/games/crawl-git-17a993e2a6(+0x2f2c74) [0x622b1c29bc74]: 
/usr/games/crawl-git-17a993e2a6(+0x2f5c40) [0x622b1c29ec40]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x7218ba9c41ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x7218ba9c428b]: 
/usr/games/crawl-git-17a993e2a6(_start+0x25) [0x622b1c3ccf45]: