Obtained 19 stack frames.
/usr/games/crawl-git-6e16503903(_Z17write_stack_traceP8_IO_FILE+0x3f) [0x56249f6a0dbf]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-6e16503903(_Z20crash_signal_handleri+0x18f) [0x56249f6a11df]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7fbcc680b210]: 
/usr/games/crawl-git-6e16503903(_Z23raw_feature_descriptionB5cxx11RK9coord_def+0x6c) [0x56249f72a7dc]: raw_feature_description[abi:cxx11](coord_def const&)
/usr/games/crawl-git-6e16503903(_Z13do_crash_dumpv+0x2103) [0x56249f6acd23]: do_crash_dump()
/usr/games/crawl-git-6e16503903(_Z20crash_signal_handleri+0x1fa) [0x56249f6a124a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x46210) [0x7fbcc680b210]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xcb) [0x7fbcc69cc24b]: 
/usr/games/crawl-git-6e16503903(+0x45b77d) [0x56249f6aa77d]: 
/usr/games/crawl-git-6e16503903(+0x45baa6) [0x56249f6aaaa6]: 
/usr/games/crawl-git-6e16503903(_Z8tag_readR6reader8tag_type+0x836d) [0x56249fc3f24d]: tag_read(reader&, tag_type)
/usr/games/crawl-git-6e16503903(+0x5370d9) [0x56249f7860d9]: 
/usr/games/crawl-git-6e16503903(+0x53a6cd) [0x56249f7896cd]: 
/usr/games/crawl-git-6e16503903(_Z12restore_gameRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x21) [0x56249f78a3b1]: restore_game(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
/usr/games/crawl-git-6e16503903(_Z12startup_stepv+0x1511) [0x56249fbf79b1]: startup_step()
/usr/games/crawl-git-6e16503903(+0xade93f) [0x56249fd2d93f]: 
/usr/games/crawl-git-6e16503903(main+0x1a8) [0x56249f5f55d8]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7fbcc67ec0b3]: 
/usr/games/crawl-git-6e16503903(_start+0x2e) [0x56249f5f614e]: