Obtained 19 stack frames. /usr/games/crawl-git-5428f20966(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x601703]: write_stack_trace(_IO_FILE*, int) /usr/games/crawl-git-5428f20966(_Z20crash_signal_handleri+0x174) [0x601a74]: crash_signal_handler(int) /lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f786ff1f4f0]: /usr/games/crawl-git-5428f20966(_Z23raw_feature_descriptionRK9coord_def+0x4b) [0x6591bb]: raw_feature_description(coord_def const&) /usr/games/crawl-git-5428f20966(_Z13do_crash_dumpv+0xce1) [0x608df1]: do_crash_dump() /usr/games/crawl-git-5428f20966(_Z20crash_signal_handleri+0x74) [0x601974]: crash_signal_handler(int) /lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f786ff1f4f0]: /lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f7870285efb]: /usr/games/crawl-git-5428f20966() [0x607c84] /usr/games/crawl-git-5428f20966() [0x607ff9] /usr/games/crawl-git-5428f20966() [0x9f5440] /usr/games/crawl-git-5428f20966(_Z8tag_readR6reader8tag_type+0xfc8) [0x9fe678]: tag_read(reader&, tag_type) /usr/games/crawl-git-5428f20966() [0x6abfb2] /usr/games/crawl-git-5428f20966() [0x6b0fab] /usr/games/crawl-git-5428f20966(_Z12restore_gameRKSs+0xa) [0x6b174a]: restore_game(std::string const&) /usr/games/crawl-git-5428f20966(_Z12startup_stepv+0xe92) [0x9d2ce2]: startup_step() /usr/games/crawl-git-5428f20966(main+0x31e) [0x4fdb6e]: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f786ff0bead]: /usr/games/crawl-git-5428f20966() [0x56fb69]