Obtained 38 stack frames.
/usr/games/crawl-git-ab3808680d(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5a01513c388e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-ab3808680d(_Z20crash_signal_handleri+0x18f) [0x5a01513c3cff]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x78c38a530330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x78c38a589b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x78c38a53027e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x78c38a5138ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x78c38a5147b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x78c38a593ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa9b7c) [0x78c38a594b7c]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa9cda) [0x78c38a594cda]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xaba90) [0x78c38a596a90]: 
/lib/x86_64-linux-gnu/libc.so.6(malloc+0x1a2) [0x78c38a5987f2]: 
/lib/x86_64-linux-gnu/libc.so.6(opendir+0x8c) [0x78c38a5d860c]: 
/usr/games/crawl-git-ab3808680d(_Z10dir_existsRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x31) [0x5a0151a2f381]: dir_exists(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-ab3808680d(_Z11check_mkdirRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPS4_b+0xf6) [0x5a01514cd5c6]: 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-ab3808680d(+0x5fcace) [0x5a01514cdace]: 
/usr/games/crawl-git-ab3808680d(_Z20get_savedir_filenameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x3b) [0x5a01514d1d2b]: get_savedir_filename(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-ab3808680d(_Z13do_crash_dumpv+0x255) [0x5a01513d18e5]: do_crash_dump()
/usr/games/crawl-git-ab3808680d(_Z20crash_signal_handleri+0x1fa) [0x5a01513c3d6a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x78c38a530330]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11c) [0x78c38a589b2c]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x1e) [0x78c38a53027e]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xdf) [0x78c38a5138ff]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x297b6) [0x78c38a5147b6]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xa8ff5) [0x78c38a593ff5]: 
/lib/x86_64-linux-gnu/libc.so.6(+0xab38c) [0x78c38a59638c]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_free+0x7e) [0x78c38a598dae]: 
/usr/games/crawl-git-ab3808680d(+0xcde061) [0x5a0151baf061]: 
/usr/games/crawl-git-ab3808680d(+0xccf6b9) [0x5a0151ba06b9]: 
/usr/games/crawl-git-ab3808680d(+0xcd5fbf) [0x5a0151ba6fbf]: 
/usr/games/crawl-git-ab3808680d(+0xccee16) [0x5a0151b9fe16]: 
/usr/games/crawl-git-ab3808680d(+0xcd4b26) [0x5a0151ba5b26]: 
/usr/games/crawl-git-ab3808680d(_ZN4CLua5closeEv+0xbe) [0x5a01513aaa8e]: CLua::close()
/usr/games/crawl-git-ab3808680d(+0x2f33a0) [0x5a01511c43a0]: 
/usr/games/crawl-git-ab3808680d(+0x2f636c) [0x5a01511c736c]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x78c38a5151ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x78c38a51528b]: 
/usr/games/crawl-git-ab3808680d(_start+0x25) [0x5a01512f5605]: