Obtained 30 stack frames.
/usr/games/crawl-git-39fb624b18(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x5c2f63]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-39fb624b18(_Z20crash_signal_handleri+0x1a5) [0x5c3305]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f9c620b54c0]: 
/usr/games/crawl-git-39fb624b18() [0x7afff0]
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f9c620b54c0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(waitpid+0x1c) [0x7f9c6244b84c]: 
/usr/games/crawl-git-39fb624b18(_Z8call_gdbP8_IO_FILE+0x1db) [0x5c366b]: call_gdb(_IO_FILE*)
/usr/games/crawl-git-39fb624b18(_Z13do_crash_dumpv+0x312) [0x5ca2b2]: do_crash_dump()
/usr/games/crawl-git-39fb624b18(_Z20crash_signal_handleri+0x9c) [0x5c31fc]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7f9c620b54c0]: 
/usr/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xdd34) [0x7f9c639c1d34]: 
/usr/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xe03c) [0x7f9c639c203c]: 
/usr/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xe480) [0x7f9c639c2480]: 
/usr/lib/x86_64-linux-gnu/liblua5.1.so.0(lua_newuserdata+0x5a) [0x7f9c639bc73a]: 
/usr/games/crawl-git-39fb624b18(_Z17clua_new_userdataI12item_wrapperEPT_P9lua_StatePKc+0x23) [0x79d003]: item_wrapper* clua_new_userdata<item_wrapper>(lua_State*, char const*)
/usr/games/crawl-git-39fb624b18(_Z14clua_push_itemP9lua_StateP8item_def+0xe) [0x79bd7e]: clua_push_item(lua_State*, item_def*)
/usr/games/crawl-git-39fb624b18(_Z21userdef_annotate_itemPKcPK8item_defb+0x40) [0xa27960]: userdef_annotate_item(char const*, item_def const*, bool)
/usr/games/crawl-git-39fb624b18(_ZNK5Stash5writeEP8_IO_FILE9coord_defSsb+0x1b5) [0xa28b65]: Stash::write(_IO_FILE*, coord_def, std::string, bool) const
/usr/games/crawl-git-39fb624b18(_ZNK12LevelStashes5writeEP8_IO_FILEb+0x11f) [0xa2919f]: LevelStashes::write(_IO_FILE*, bool) const
/usr/games/crawl-git-39fb624b18(_ZNK12StashTracker5writeEP8_IO_FILEb+0x7f) [0xa292bf]: StashTracker::write(_IO_FILE*, bool) const
/usr/games/crawl-git-39fb624b18(_ZNK12StashTracker4dumpEPKcb+0x3d) [0xa2937d]: StashTracker::dump(char const*, bool) const
/usr/games/crawl-git-39fb624b18(_Z9dump_charRKSsbbPK15scorefile_entry+0xac) [0x5944dc]: dump_char(std::string const&, bool, bool, scorefile_entry const*)
/usr/games/crawl-git-39fb624b18(_Z9save_gamebPKc+0x173) [0x680353]: save_game(bool, char const*)
/usr/games/crawl-git-39fb624b18(_Z7builderb20dungeon_feature_type+0x28ef) [0x652aaf]: builder(bool, dungeon_feature_type)
/usr/games/crawl-git-39fb624b18(_Z10load_level20dungeon_feature_type14load_mode_typeRK8level_id+0x4f7) [0x681297]: load_level(dungeon_feature_type, load_mode_type, level_id const&)
/usr/games/crawl-git-39fb624b18(_Z12startup_stepv+0x8ac) [0xa2660c]: startup_step()
/usr/games/crawl-git-39fb624b18() [0xb868f6]
/usr/games/crawl-git-39fb624b18(main+0x2eb) [0xb8a0bb]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f9c620a076d]: 
/usr/games/crawl-git-39fb624b18() [0x51e129]