Obtained 41 stack frames.
/usr/games/crawl-0.34(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x634f903f9a9e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x18f) [0x634f903f9f0f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x72d306042910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x72d30609999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x72d306042866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x72d3060268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x72d306027750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x72d3060a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa4978) [0x72d3060a4978]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa65b8) [0x72d3060a65b8]: 
/lib/x86_64-linux-gnu/libc.so.6(malloc+0x19a) [0x72d3060a824a]: 
/lib/x86_64-linux-gnu/libc.so.6(opendir+0x85) [0x72d3060e61a5]: 
/usr/games/crawl-0.34(_Z10dir_existsRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x31) [0x634f90a69fa1]: dir_exists(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_Z11check_mkdirRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPS4_b+0xf6) [0x634f90504036]: 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-0.34(+0x5ff53e) [0x634f9050453e]: 
/usr/games/crawl-0.34(_Z20get_savedir_filenameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x3b) [0x634f9050879b]: get_savedir_filename(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-0.34(_Z13do_crash_dumpv+0x255) [0x634f90407b15]: do_crash_dump()
/usr/games/crawl-0.34(_Z20crash_signal_handleri+0x1fa) [0x634f903f9f7a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x72d306042910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x72d30609999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x72d306042866]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xd7) [0x72d3060268b7]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x27750) [0x72d306027750]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa3c67) [0x72d3060a3c67]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa5ea4) [0x72d3060a5ea4]: 
/lib/x86_64-linux-gnu/libc.so.6(free+0x73) [0x72d3060a87f3]: 
/usr/games/crawl-0.34(_ZN12text_patternD1Ev+0x21) [0x634f908da0f1]: text_pattern::~text_pattern()
/usr/games/crawl-0.34(+0x76c25d) [0x634f9067125d]: 
/usr/games/crawl-0.34(+0xcd72c3) [0x634f90bdc2c3]: 
/usr/games/crawl-0.34(+0xcd75c4) [0x634f90bdc5c4]: 
/usr/games/crawl-0.34(+0xcd6423) [0x634f90bdb423]: 
/usr/games/crawl-0.34(+0xcd7a04) [0x634f90bdca04]: 
/usr/games/crawl-0.34(+0xcd8e46) [0x634f90bdde46]: 
/usr/games/crawl-0.34(+0xcdacd8) [0x634f90bdfcd8]: 
/usr/games/crawl-0.34(+0xce09f6) [0x634f90be59f6]: 
/usr/games/crawl-0.34(_ZN4CLua5closeEv+0xbe) [0x634f903e0bce]: CLua::close()
/usr/games/crawl-0.34(+0x2f501c) [0x634f901fa01c]: 
/usr/games/crawl-0.34(+0x2f7ff1) [0x634f901fcff1]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x72d3060280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x72d306028189]: 
/usr/games/crawl-0.34(_start+0x25) [0x634f9032bf95]: