Obtained 29 stack frames.
/usr/games/crawl-git-c85dc1c48c(_Z17write_stack_traceP8_IO_FILE+0x28) [0x55710e084928]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-c85dc1c48c(_Z20crash_signal_handleri+0x1bd) [0x55710e084d6d]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x33060) [0x7f79155b1060]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xcf) [0x7f791592df9f]: 
/usr/games/crawl-git-c85dc1c48c(+0x3c8c46) [0x55710e08ec46]: 
/usr/games/crawl-git-c85dc1c48c(+0x3c9003) [0x55710e08f003]: 
/usr/games/crawl-git-c85dc1c48c(_Z20crash_signal_handleri+0x274) [0x55710e084e24]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x33060) [0x7f79155b1060]: 
/usr/games/crawl-git-c85dc1c48c(_Z9init_itemi+0x13a) [0x55710e28388a]: init_item(int)
/usr/games/crawl-git-c85dc1c48c(_Z13get_mitm_sloti+0x6e) [0x55710e2881ae]: get_mitm_slot(int)
/usr/games/crawl-git-c85dc1c48c(_Z5itemsb17object_class_typeiiiiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x6f) [0x55710e31486f]: items(bool, object_class_type, int, int, int, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)
/usr/games/crawl-git-c85dc1c48c(_Z14dgn_place_itemRK9item_specRK9coord_defi+0x129) [0x55710e134f89]: dgn_place_item(item_spec const&, coord_def const&, int)
/usr/games/crawl-git-c85dc1c48c(+0x4711d6) [0x55710e1371d6]: 
/usr/games/crawl-git-c85dc1c48c(_ZN15vault_placement10apply_gridEv+0x315) [0x55710e1378c5]: vault_placement::apply_grid()
/usr/games/crawl-git-c85dc1c48c(+0x47371f) [0x55710e13971f]: 
/usr/games/crawl-git-c85dc1c48c(+0x4763fc) [0x55710e13c3fc]: 
/usr/games/crawl-git-c85dc1c48c(_Z7builderb+0x1bb5) [0x55710e13f9f5]: builder(bool)
/usr/games/crawl-git-c85dc1c48c(_Z14generate_levelRK8level_id+0x1223) [0x55710e16b2f3]: generate_level(level_id const&)
/usr/games/crawl-git-c85dc1c48c(_Z14pregen_dungeonRK8level_id+0x60a) [0x55710e16bf9a]: pregen_dungeon(level_id const&)
/usr/games/crawl-git-c85dc1c48c(_Z10load_level20dungeon_feature_type14load_mode_typeRK8level_id+0x3f6) [0x55710e1701c6]: load_level(dungeon_feature_type, load_mode_type, level_id const&)
/usr/games/crawl-git-c85dc1c48c(_Z16floor_transition20dungeon_feature_typeS_8level_idbbbb+0xb86) [0x55710e58f516]: floor_transition(dungeon_feature_type, dungeon_feature_type, level_id, bool, bool, bool, bool)
/usr/games/crawl-git-c85dc1c48c(_Z11take_stairs20dungeon_feature_typebbb+0xe2) [0x55710e591f12]: take_stairs(dungeon_feature_type, bool, bool, bool)
/usr/games/crawl-git-c85dc1c48c(_ZN5Delay6handleEv+0x41) [0x55710e0a7761]: Delay::handle()
/usr/games/crawl-git-c85dc1c48c(_Z12handle_delayv+0x37) [0x55710e0a87a7]: handle_delay()
/usr/games/crawl-git-c85dc1c48c(+0x9fa286) [0x55710e6c0286]: 
/usr/games/crawl-git-c85dc1c48c(+0x9fab15) [0x55710e6c0b15]: 
/usr/games/crawl-git-c85dc1c48c(main+0x37d) [0x55710dfd9a5d]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f791559e2e1]: 
/usr/games/crawl-git-c85dc1c48c(_start+0x2a) [0x55710dfda41a]: