Obtained 28 stack frames.
/usr/games/crawl-git-d5e1996cdb(_Z17write_stack_traceP8_IO_FILE+0x3f) [0x564eef12c62f]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-d5e1996cdb(_Z20crash_signal_handleri+0x18f) [0x564eef12ca4f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7f562267e210]: 
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xcb) [0x7f562267e18b]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0x12b) [0x7f562265d859]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x903ee) [0x7f56226c83ee]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x9847c) [0x7f56226d047c]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x98acc) [0x7f56226d0acc]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x98bfc) [0x7f56226d0bfc]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x9ae03) [0x7f56226d2e03]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_malloc+0x74) [0x7f56226d52d4]: 
/lib/x86_64-linux-gnu/libc.so.6(__backtrace_symbols+0x196) [0x7f5622768256]: 
/usr/games/crawl-git-d5e1996cdb(_Z17write_stack_traceP8_IO_FILE+0x4c) [0x564eef12c63c]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-d5e1996cdb(_Z13do_crash_dumpv+0x1c7d) [0x564eef1357bd]: do_crash_dump()
/usr/games/crawl-git-d5e1996cdb(_Z20crash_signal_handleri+0x1fa) [0x564eef12caba]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7f562267e210]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x99c04) [0x7f56226d1c04]: 
/usr/games/crawl-git-d5e1996cdb(+0x76dd90) [0x564eef483d90]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x49a27) [0x7f5622681a27]: 
/lib/x86_64-linux-gnu/libc.so.6(on_exit+0) [0x7f5622681be0]: 
/usr/games/crawl-git-d5e1996cdb(_Z3endibPKcz+0x2c3) [0x564eef1ebd23]: end(int, bool, char const*, ...)
/usr/games/crawl-git-d5e1996cdb(_Z10game_ended9game_exitRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0xe2) [0x564eef1ebec2]: game_ended(game_exit, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-d5e1996cdb(_Z9save_gamebPKc+0x6c3) [0x564eef20ba53]: save_game(bool, char const*)
/usr/games/crawl-git-d5e1996cdb(+0xa477db) [0x564eef75d7db]: 
/usr/games/crawl-git-d5e1996cdb(+0xa482ed) [0x564eef75e2ed]: 
/usr/games/crawl-git-d5e1996cdb(main+0x1a5) [0x564eef087355]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f562265f0b3]: 
/usr/games/crawl-git-d5e1996cdb(_start+0x2e) [0x564eef087e6e]: