Obtained 22 stack frames.
/usr/games/crawl-bcadren(_Z17write_stack_traceP8_IO_FILE+0x3b) [0x55ea8f1b28eb]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-bcadren(_Z20crash_signal_handleri+0x1e5) [0x55ea8f1b2d95]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7fe2bdffaf20]: 
/usr/games/crawl-bcadren(_Z12dgn_vault_at9coord_def+0x3e) [0x55ea8f24396e]: dgn_vault_at(coord_def)
/usr/games/crawl-bcadren(_ZN15scorefile_entry4initEl+0x5fa) [0x55ea8f312fba]: scorefile_entry::init(long)
/usr/games/crawl-bcadren(_ZN15scorefile_entryC2EijiPKcbS1_l+0x310) [0x55ea8f3138d0]: scorefile_entry::scorefile_entry(int, unsigned int, int, char const*, bool, char const*, long)
/usr/games/crawl-bcadren(_Z14mark_milestoneRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_S6_l+0x274) [0x55ea8f313cd4]: mark_milestone(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, long)
/usr/games/crawl-bcadren(_Z13do_crash_dumpv+0x1f11) [0x55ea8f1bd321]: do_crash_dump()
/usr/games/crawl-bcadren(_Z20crash_signal_handleri+0xae) [0x55ea8f1b2c5e]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7fe2bdffaf20]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xc7) [0x7fe2be3bf727]: 
/usr/games/crawl-bcadren(+0x37fefb) [0x55ea8f1baefb]: 
/usr/games/crawl-bcadren(+0x3802b5) [0x55ea8f1bb2b5]: 
/usr/games/crawl-bcadren(+0x4224e3) [0x55ea8f25d4e3]: 
/usr/games/crawl-bcadren(_Z14generate_levelRK8level_id+0xf28) [0x55ea8f292898]: generate_level(level_id const&)
/usr/games/crawl-bcadren(_Z14pregen_dungeonRK8level_id+0x600) [0x55ea8f2937c0]: pregen_dungeon(level_id const&)
/usr/games/crawl-bcadren(_Z10load_level20dungeon_feature_type14load_mode_typeRK8level_id+0x3f8) [0x55ea8f293cd8]: load_level(dungeon_feature_type, load_mode_type, level_id const&)
/usr/games/crawl-bcadren(_Z12startup_stepv+0x161f) [0x55ea8f69733f]: startup_step()
/usr/games/crawl-bcadren(+0x979f09) [0x55ea8f7b4f09]: 
/usr/games/crawl-bcadren(main+0x323) [0x55ea8f1073f3]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7fe2bdfddb97]: 
/usr/games/crawl-bcadren(_start+0x2a) [0x55ea8f107afa]: