Obtained 19 stack frames.
/usr/games/crawl-git-ceb718ecc6(_Z17write_stack_traceP8_IO_FILE+0x3f) [0x5561b63b1d8f]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-ceb718ecc6(_Z20crash_signal_handleri+0x18f) [0x5561b63b21af]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7fd7e88f0210]: 
/usr/games/crawl-git-ceb718ecc6(_Z23raw_feature_descriptionB5cxx11RK9coord_def+0x6c) [0x5561b643b85c]: raw_feature_description[abi:cxx11](coord_def const&)
/usr/games/crawl-git-ceb718ecc6(_Z13do_crash_dumpv+0x2103) [0x5561b63bdcf3]: do_crash_dump()
/usr/games/crawl-git-ceb718ecc6(_Z20crash_signal_handleri+0x1fa) [0x5561b63b221a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7fd7e88f0210]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xcb) [0x7fd7e8ab124b]: 
/usr/games/crawl-git-ceb718ecc6(+0x45b74d) [0x5561b63bb74d]: 
/usr/games/crawl-git-ceb718ecc6(+0x45ba76) [0x5561b63bba76]: 
/usr/games/crawl-git-ceb718ecc6(_Z8tag_readR6reader8tag_type+0x836d) [0x5561b695018d]: tag_read(reader&, tag_type)
/usr/games/crawl-git-ceb718ecc6(+0x537139) [0x5561b6497139]: 
/usr/games/crawl-git-ceb718ecc6(+0x53a72d) [0x5561b649a72d]: 
/usr/games/crawl-git-ceb718ecc6(_Z12restore_gameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x21) [0x5561b649b411]: restore_game(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-ceb718ecc6(_Z12startup_stepv+0x1511) [0x5561b69088f1]: startup_step()
/usr/games/crawl-git-ceb718ecc6(+0xade89f) [0x5561b6a3e89f]: 
/usr/games/crawl-git-ceb718ecc6(main+0x1a8) [0x5561b63065a8]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7fd7e88d10b3]: 
/usr/games/crawl-git-ceb718ecc6(_start+0x2e) [0x5561b630711e]: