Obtained 20 stack frames.
/usr/games/crawl-git-84b8fb8588(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x603df3]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-84b8fb8588(_Z20crash_signal_handleri+0x174) [0x604164]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f4d64cbf4f0]: 
/usr/games/crawl-git-84b8fb8588(_Z23raw_feature_descriptionRK9coord_def+0x4b) [0x65fbab]: raw_feature_description(coord_def const&)
/usr/games/crawl-git-84b8fb8588(_Z13do_crash_dumpv+0xd0a) [0x60b74a]: do_crash_dump()
/usr/games/crawl-git-84b8fb8588(_Z20crash_signal_handleri+0x74) [0x604064]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x324f0) [0x7f4d64cbf4f0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f4d65025efb]: 
/usr/games/crawl-git-84b8fb8588() [0x60a5b4]
/usr/games/crawl-git-84b8fb8588() [0x60a929]
/usr/games/crawl-git-84b8fb8588() [0xa22c80]
/usr/games/crawl-git-84b8fb8588(_Z8tag_readR6reader8tag_type+0x1046) [0xa2c1b6]: tag_read(reader&, tag_type)
/usr/games/crawl-git-84b8fb8588() [0x6b61f2]
/usr/games/crawl-git-84b8fb8588() [0x6b7aa5]
/usr/games/crawl-git-84b8fb8588(_Z12restore_gameRKSs+0xa) [0x6b824a]: restore_game(std::string const&)
/usr/games/crawl-git-84b8fb8588(_Z12startup_stepv+0x1382) [0xa00092]: startup_step()
/usr/games/crawl-git-84b8fb8588() [0x7daec6]
/usr/games/crawl-git-84b8fb8588(main+0x2f9) [0x515f49]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f4d64cabead]: 
/usr/games/crawl-git-84b8fb8588() [0x575dd1]