Obtained 21 stack frames.
/usr/games/crawl-git-4695f106a8(_Z17write_stack_traceP8_IO_FILEi+0x28) [0x54e228]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-4695f106a8(_Z20crash_signal_handleri+0x185) [0x54e5b5]: crash_signal_handler(int)
/lib/libc.so.6(+0x32230) [0x7f83d5eb6230]: 
/usr/games/crawl-git-4695f106a8(_Z23raw_feature_descriptionRK9coord_def+0x50) [0x5a9680]: raw_feature_description(coord_def const&)
/usr/games/crawl-git-4695f106a8() [0x554f36]
/usr/games/crawl-git-4695f106a8(_Z13do_crash_dumpv+0x920) [0x556360]: do_crash_dump()
/usr/games/crawl-git-4695f106a8(_Z20crash_signal_handleri+0x6a) [0x54e49a]: crash_signal_handler(int)
/lib/libc.so.6(+0x32230) [0x7f83d5eb6230]: 
/lib/libpthread.so.0(raise+0x2b) [0x7f83d61f4ebb]: 
/usr/games/crawl-git-4695f106a8() [0x5540d4]
/usr/games/crawl-git-4695f106a8() [0x5545ba]
/usr/games/crawl-git-4695f106a8() [0x97b4cd]
/usr/games/crawl-git-4695f106a8(_Z8tag_readR6reader8tag_type+0x3429) [0x988b39]: tag_read(reader&, tag_type)
/usr/games/crawl-git-4695f106a8() [0x600811]
/usr/games/crawl-git-4695f106a8() [0x606d8f]
/usr/games/crawl-git-4695f106a8(_Z12restore_gameRKSs+0x13) [0x607683]: restore_game(std::string const&)
/usr/games/crawl-git-4695f106a8(_Z12startup_stepv+0xb1f) [0x9510bf]: startup_step()
/usr/games/crawl-git-4695f106a8() [0x723a76]
/usr/games/crawl-git-4695f106a8(main+0x325) [0x724ae5]: 
/lib/libc.so.6(__libc_start_main+0xfd) [0x7f83d5ea2c8d]: 
/usr/games/crawl-git-4695f106a8() [0x4bde99]