Obtained 26 stack frames.
/usr/games/crawl-git-34678775c8(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x57533811f9de]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-34678775c8(_Z20crash_signal_handleri+0x18f) [0x57533811fe4f]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x71d650ff7330]: 
/usr/games/crawl-git-34678775c8(_Z13handle_hangupi+0) [0x5753383e89c0]: handle_hangup(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x71d650ff7330]: 
/lib/x86_64-linux-gnu/libc.so.6(wait4+0x15) [0x71d6510c27a5]: 
/usr/games/crawl-git-34678775c8(_Z8call_gdbP8_IO_FILE+0xec) [0x57533812008c]: call_gdb(_IO_FILE*)
/usr/games/crawl-git-34678775c8(_Z13do_crash_dumpv+0x458) [0x57533812dbd8]: do_crash_dump()
/usr/games/crawl-git-34678775c8(_Z20crash_signal_handleri+0x1fa) [0x57533811feba]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x71d650ff7330]: 
/usr/games/crawl-git-34678775c8(_ZN4bolt25affect_player_enchantmentEb+0x6d) [0x5753380d6f8d]: bolt::affect_player_enchantment(bool)
/usr/games/crawl-git-34678775c8(_ZN4bolt11affect_cellEv+0x3e1) [0x5753380d0bc1]: bolt::affect_cell()
/usr/games/crawl-git-34678775c8(_ZN4bolt7do_fireEv+0x740) [0x5753380d9630]: bolt::do_fire()
/usr/games/crawl-git-34678775c8(_ZN4bolt4fireEv+0x268) [0x5753380da228]: bolt::fire()
/usr/games/crawl-git-34678775c8(_Z9mons_castP7monster4bolt10spell_type13enum_bitfieldI19mon_spell_slot_flagLi12EEb+0x45e) [0x5753384d64ae]: mons_cast(monster*, bolt, spell_type, enum_bitfield<mon_spell_slot_flag, 12>, bool)
/usr/games/crawl-git-34678775c8(_Z16handle_mon_spellP7monster+0xd7d) [0x5753384e2acd]: handle_mon_spell(monster*)
/usr/games/crawl-git-34678775c8(+0x8635aa) [0x5753384a05aa]: 
/usr/games/crawl-git-34678775c8(_Z19handle_monster_moveP7monster+0x5f3) [0x5753384a6c93]: handle_monster_move(monster*)
/usr/games/crawl-git-34678775c8(_Z15handle_monstersb+0xc10) [0x5753384a9cf0]: handle_monsters(bool)
/usr/games/crawl-git-34678775c8(_Z12world_reactsv+0x135) [0x5753388ce3c5]: world_reacts()
/usr/games/crawl-git-34678775c8(+0xc93b39) [0x5753388d0b39]: 
/usr/games/crawl-git-34678775c8(+0xc94665) [0x5753388d1665]: 
/usr/games/crawl-git-34678775c8(main+0x1f7) [0x575338053c47]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x71d650fdc1ca]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x71d650fdc28b]: 
/usr/games/crawl-git-34678775c8(_start+0x25) [0x575338054735]: