Obtained 30 stack frames.
/usr/games/crawl-git-a282ea246d(_Z17write_stack_traceP8_IO_FILE+0x28) [0x561c77d507c8]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-a282ea246d(_Z20crash_signal_handleri+0x1bd) [0x561c77d50c0d]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x33060) [0x7f19108dc060]: 
/lib/x86_64-linux-gnu/libc.so.6(sigprocmask+0x10) [0x7f19108dc2e0]: 
/lib/x86_64-linux-gnu/libc.so.6(abort+0xe1) [0x7f19108dd3a1]: 
/usr/games/crawl-git-a282ea246d(+0x39325b) [0x561c77d5825b]: 
/usr/games/crawl-git-a282ea246d(+0x3934ed) [0x561c77d584ed]: 
/usr/games/crawl-git-a282ea246d(+0x9602d0) [0x561c783252d0]: 
/usr/games/crawl-git-a282ea246d(_ZN14TilesFramework14send_milestoneERK11xlog_fields+0x108) [0x561c783259f8]: TilesFramework::send_milestone(xlog_fields const&)
/usr/games/crawl-git-a282ea246d(_Z14mark_milestoneRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_S6_l+0x43d) [0x561c77eab32d]: 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-git-a282ea246d(_Z13do_crash_dumpv+0x2107) [0x561c77d5a727]: do_crash_dump()
/usr/games/crawl-git-a282ea246d(_Z20crash_signal_handleri+0x7e) [0x561c77d50ace]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x33060) [0x7f19108dc060]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xcf) [0x7f1910c58f9f]: 
/usr/games/crawl-git-a282ea246d(+0x393256) [0x561c77d58256]: 
/usr/games/crawl-git-a282ea246d(+0x3933c2) [0x561c77d583c2]: 
/usr/games/crawl-git-a282ea246d(_Z13add_companionP7monster+0x34f) [0x561c77e7187f]: add_companion(monster*)
/usr/games/crawl-git-a282ea246d(_Z17beogh_convert_orcP7monster6conv_t+0x173) [0x561c77cfbc73]: beogh_convert_orc(monster*, conv_t)
/usr/games/crawl-git-a282ea246d(+0x67b5b7) [0x561c780405b7]: 
/usr/games/crawl-git-a282ea246d(_Z11monster_dieR7monster11killer_typeibbb+0x388e) [0x561c7804b72e]: monster_die(monster&, killer_type, int, bool, bool, bool)
/usr/games/crawl-git-a282ea246d(_ZN4bolt14affect_monsterEP7monster+0xf8c) [0x561c77d0ff2c]: bolt::affect_monster(monster*)
/usr/games/crawl-git-a282ea246d(_ZN4bolt11affect_cellEv+0xfc) [0x561c77d1050c]: bolt::affect_cell()
/usr/games/crawl-git-a282ea246d(_ZN4bolt7do_fireEv+0x315) [0x561c77d131a5]: bolt::do_fire()
/usr/games/crawl-git-a282ea246d(_ZN4bolt4fireEv+0x1188) [0x561c77d15278]: bolt::fire()
/usr/games/crawl-git-a282ea246d(_Z18handle_searing_rayv+0x37b) [0x561c781d9d3b]: handle_searing_ray()
/usr/games/crawl-git-a282ea246d(+0x97794c) [0x561c7833c94c]: 
/usr/games/crawl-git-a282ea246d(+0x977f05) [0x561c7833cf05]: 
/usr/games/crawl-git-a282ea246d(main+0x345) [0x561c77caae55]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f19108c92e1]: 
/usr/games/crawl-git-a282ea246d(_start+0x2a) [0x561c77cab7ea]: