ERROR in 'stairs.cc' at line 1246: no return path from a portal (Abyss:1)

Version: Dungeon Crawl Stone Soup 0.31-a0-1059-g83d41fd8b6
Platform: unix
Bits: 64
Game mode: normal
Tiles: online

Seed: 13420361963708850483, deterministic pregen: 1
Version history:
Game started: 0.29-a0-1030-gf5f8719cae
0.30-a0-359-gd0147acb1a
0.31-a0-1059-g83d41fd8b6

Command line: /usr/games/crawl-git-83d41fd8b6 -name megamayne420 -rc /dgldir/rcfiles/crawl-git/megamayne420.rc -macro /dgldir/rcfiles/crawl-git/megamayne420.macro -morgue /dgldir/morgue/megamayne420/ -webtiles-socket /crawl-master/webserver/sockets/megamayne420:2023-11-21.14:28:35.sock -await-connection

RC options:
restart_after_game = false


Crash caused by signal #6: Aborted

Obtained 18 stack frames.
/usr/games/crawl-git-83d41fd8b6(_Z17write_stack_traceP8_IO_FILE+0x28) [0x55e06ad6b438]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-83d41fd8b6(_Z13do_crash_dumpv+0x49d) [0x55e06ad75fbd]: do_crash_dump()
/usr/games/crawl-git-83d41fd8b6(_Z20crash_signal_handleri+0x7e) [0x55e06ad6b73e]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x33060) [0x7f90c330a060]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xcf) [0x7f90c3686f9f]: 
/usr/games/crawl-git-83d41fd8b6(+0x3cd756) [0x55e06ad75756]: 
/usr/games/crawl-git-83d41fd8b6(+0x3cd9ed) [0x55e06ad759ed]: 
/usr/games/crawl-git-83d41fd8b6(_Z17stair_destination20dungeon_feature_typeRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEb+0x400) [0x55e06b27cc80]: stair_destination(dungeon_feature_type, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool)
/usr/games/crawl-git-83d41fd8b6(+0x8d87ff) [0x55e06b2807ff]: 
/usr/games/crawl-git-83d41fd8b6(_Z11take_stairs20dungeon_feature_typebbb+0x8b) [0x55e06b280c5b]: take_stairs(dungeon_feature_type, bool, bool, bool)
/usr/games/crawl-git-83d41fd8b6(_Z15activate_talentRK6talentP4dist+0x36ce) [0x55e06accf6ce]: activate_talent(talent const&, dist*)
/usr/games/crawl-git-83d41fd8b6(_Z16activate_abilityv+0x319) [0x55e06acd1f99]: activate_ability()
/usr/games/crawl-git-83d41fd8b6(_Z15process_command12command_typeS_+0x13e) [0x55e06b3b33ae]: process_command(command_type, command_type)
/usr/games/crawl-git-83d41fd8b6(+0xa0a661) [0x55e06b3b2661]: 
/usr/games/crawl-git-83d41fd8b6(+0xa0ac85) [0x55e06b3b2c85]: 
/usr/games/crawl-git-83d41fd8b6(main+0x398) [0x55e06acbdb78]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f90c32f72e1]: 
/usr/games/crawl-git-83d41fd8b6(_start+0x2a) [0x55e06acbe52a]: 

gdb not executable.

Compilation info:
<<<<<<<<<<<
Compiled with GCC 6.3.0 20170516
Build platform: x86_64-linux-gnu
Platform: x86_64-linux-gnu
CFLAGS: -O2 -pipe -DUSE_TILE -DUSE_TILE_WEB -Wall -Wformat-security -Wundef -Wextra -Wno-missing-field-initializers -Wno-implicit-fallthrough -Wno-type-limits -Wno-uninitialized -Wno-array-bounds -Wmissing-declarations -Wredundant-decls -Wno-parentheses -Wwrite-strings -Wshadow -pedantic -Wuninitialized -Iutil -I. -isystem /usr/include/lua5.1 -g -DWIZARD -DASSERTS -DREGEX_PCRE -DCLUA_BINDINGS -DDGAMELAUNCH -DSAVE_DIR_PATH="/crawl-master/crawl-git-83d41fd8b6/saves" -DSHARED_DIR_PATH="/crawl-master/crawl-git/saves" -DDATA_DIR_PATH="/crawl-master/crawl-git-83d41fd8b6/data/" -DWEB_DIR_PATH="/crawl-master/crawl-git-83d41fd8b6/data/web/" -D_GNU_SOURCE -D_DEFAULT_SOURCE -isystem /usr/include/ncursesw
LDFLAGS: -rdynamic -fuse-ld=gold -O2 
>>>>>>>>>>>

Place info:
branch = 22, depth = 1

Level id: Abyss:1
Abyssal state:
    major_coord = (1492849746,1738900475)
    seed = 0x19567d8c
    depth = 529593411
    phase = 1.86
    destroy_all_terrain = 0
    level = (1 : 1)
Level build method = abyss, level layout type  = abyss, absdepth0 = 24

Markers:
<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>

Messages:
<<<<<<<<<<<<<<<<<<<<<<
Welcome, megamayne420 the Hill Orc Abyssal Knight.
Below lies the Orb of Zot, rumoured to be powerful enough to resurrect a god...
Lugonu says: Depart the Abyss and spread corruption, my servant!
(use the ability menu to exit the Abyss)
Press ? for a list of commands and other information.
Found two corrupted altars of Lugonu.
Found a gateway leading out of the Abyss.
Saving game... please wait.
Welcome back, megamayne420 the Hill Orc Abyssal Knight.
Lugonu says: Spread carnage and corruption!
Welcome back, megamayne420 the Hill Orc Abyssal Knight.
Lugonu says: Spread carnage and corruption!
Press ? for a list of commands and other information.
Saving game... please wait.
Welcome back, megamayne420 the Hill Orc Abyssal Knight.
Lugonu says: Spread carnage and corruption!
Press ? for a list of commands and other information.
Saving game... please wait.
Welcome back, megamayne420 the Hill Orc Abyssal Knight.
Lugonu says: Spread carnage and corruption!
Press ? for a list of commands and other information.
Unknown command.
You enter the shallow water.
Moving in this stuff is going to be slow.
You enter the shallow water.
Moving in this stuff is going to be slow.
A tentacled starspawn comes into view.
Unknown command.

>>>>>>>>>>>>>>>>>>>>>>

Version history:
Game started: 0.29-a0-1030-gf5f8719cae
0.30-a0-359-gd0147acb1a
0.31-a0-1059-g83d41fd8b6

Game state:

mouse_enabled: 0, waiting_for_command: 0, terminal_resized: 0
io_inited: 1, need_save: 1, saving_game: 0, updating_scores: 0:
seen_hups: 0, map_stat_gen: 0, type: 1, arena_suspended: 0

prev_cmd = CMD_USE_ABILITY
repeat_cmd = CMD_NO_CMD

Player:
{{{{{{{{{{{
Name:    [megamayne420]
Species: Hill Orc
Job:     Abyssal Knight

HP: 19/19; mods: 0/0
MP: 2/2; mod: 0
Stats: 15 (15) 10 (10) 11 (11)
Position: (35, 28), god: Lugonu (13), turn_is_over: 0, banished: 0
Standing on/in/over feature: floor

Skills (mode: manual)
Name            | can_currently_train | train | training | level | points | progress
Fighting        |          X          |   1   |    20    |    3  |    301 | 89/141
Short Blades    |          X          |   0   |     0    |    0  |      0 | 0/50
Long Blades     |          X          |   0   |     0    |    0  |      0 | 0/42
Axes            |          X          |   1   |    20    |    2  |    151 | 62/89
Maces & Flails  |          X          |   0   |     0    |    0  |      0 | 0/42
Polearms        |          X          |   0   |     0    |    0  |      0 | 0/42
Staves          |          X          |   0   |     0    |    0  |      0 | 0/59
Ranged Weapons  |          X          |   0   |     0    |    0  |      0 | 0/59
Throwing        |          X          |   0   |     0    |    0  |      0 | 0/59
Armour          |          X          |   1   |    20    |    2  |    151 | 25/126
Dodging         |          X          |   1   |    20    |    0  |     51 | 51/70
Stealth         |          X          |   0   |     0    |    0  |      0 | 0/59
Shields         |          X          |   0   |     0    |    0  |      0 | 0/42
Unarmed Combat  |          X          |   0   |     0    |    0  |      0 | 0/42
Spellcasting    |          X          |   0   |     0    |    0  |      0 | 0/84
Conjurations    |          X          |   0   |     0    |    0  |      0 | 0/50
Hexes           |          X          |   0   |     0    |    0  |      0 | 0/50
Summonings      |          X          |   0   |     0    |    0  |      0 | 0/50
Necromancy      |          X          |   0   |     0    |    0  |      0 | 0/50
Translocations  |          X          |   0   |     0    |    0  |      0 | 0/70
Transmutations  |          X          |   0   |     0    |    0  |      0 | 0/84
Fire Magic      |          X          |   0   |     0    |    0  |      0 | 0/42
Ice Magic       |          X          |   0   |     0    |    0  |      0 | 0/59
Air Magic       |          X          |   0   |     0    |    0  |      0 | 0/70
Earth Magic     |          X          |   0   |     0    |    0  |      0 | 0/50
Poison Magic    |          X          |   0   |     0    |    0  |      0 | 0/59
Invocations     |          X          |   1   |    20    |    2  |    127 | 38/89
Evocations      |          X          |   0   |     0    |    0  |      0 | 0/50
Shapeshifting   |          X          |   0   |     0    |    0  |      0 | 0/70

Spell bugs:

Durations:

Attributes:
    #7: 1

Mutations:

Inventory bugs:

Equipment:
    eq slot #0, inv slot #0: +1 hand axe

}}}}}}}}}}}

Webtiles message buffer: 
Webtiles JSON stack:

Screenshot:
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# .
.. .           #.
 ..#.         #..
  #..#       #.#
    ..#  ####.# #
     #.##.....#.#
      #@#...# .. #
   #...#.#..#..#.
#.X....#........# #
#......##..#....#..
....#.#.#.## #....#
##.#.. #...##...#
 #....#.#....#
 # #.##....#.#
       ..#....#

clua stack:


dlua stack:


Lua persistent data:
<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>

Lua marker contents:
<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>