ASSERT(!spells.empty()) in 'randbook.cc' at line 551 failed.

Version: Dungeon Crawl Stone Soup 0.26-a0-639-g72c4674329
Platform: unix
Bits: 64
Game mode: normal
Tiles: online

Seed: 0, deterministic pregen: 1
Command line: /usr/games/crawl-git-72c4674329 -name Lanoc -rc /dgldir/rcfiles/crawl-git/Lanoc.rc -macro /dgldir/rcfiles/crawl-git/Lanoc.macro -morgue /dgldir/morgue/Lanoc/ -webtiles-socket /crawl-master/webserver/sockets/Lanoc:2020-09-16.22:44:30.sock -await-connection

RC options:
restart_after_game = false


Crash caused by signal #6: Aborted

Obtained 21 stack frames.
/usr/games/crawl-git-72c4674329(_Z17write_stack_traceP8_IO_FILE+0x3b) [0x55f16438256b]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-72c4674329(_Z13do_crash_dumpv+0x47a) [0x55f16438aaaa]: do_crash_dump()
/usr/games/crawl-git-72c4674329(_Z20crash_signal_handleri+0xae) [0x55f1643828de]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7fbbe6066f20]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0xc7) [0x7fbbe642b727]: 
/usr/games/crawl-git-72c4674329(+0x35d11b) [0x55f16438a11b]: 
/usr/games/crawl-git-72c4674329(+0x35d38e) [0x55f16438a38e]: 
/usr/games/crawl-git-72c4674329(_Z20_set_book_spell_listR8item_defSt6vectorI10spell_typeSaIS2_EE+0x2b1) [0x55f16477d551]: _set_book_spell_list(item_def&, std::vector<spell_type, std::allocator<spell_type> >)
/usr/games/crawl-git-72c4674329(_Z23init_book_theme_randartR8item_defSt6vectorI10spell_typeSaIS2_EE+0x60) [0x55f16477d5e0]: init_book_theme_randart(item_def&, std::vector<spell_type, std::allocator<spell_type> >)
/usr/games/crawl-git-72c4674329(_Z17build_themed_bookR8item_defSt8functionIFb8spschoolS2_iRKSt6vectorI10spell_typeSaIS4_EES4_EES1_IFS2_vEEiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESI_+0x1a2) [0x55f16477d7d2]: build_themed_book(item_def&, std::function<bool (spschool, spschool, int, std::vector<spell_type, std::allocator<spell_type> > const&, spell_type)>, std::function<spschool ()>, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)
/usr/games/crawl-git-72c4674329(+0x6f2196) [0x55f16471f196]: 
/usr/games/crawl-git-72c4674329(_Z15create_wandererv+0x2ed) [0x55f16471f61d]: create_wanderer()
/usr/games/crawl-git-72c4674329(_Z17give_items_skillsRK11newgame_def+0xe) [0x55f16471b38e]: give_items_skills(newgame_def const&)
/usr/games/crawl-git-72c4674329(_Z21fill_doll_for_newgameR10dolls_dataRK11newgame_def+0x3021) [0x55f164934091]: fill_doll_for_newgame(dolls_data&, newgame_def const&)
/usr/games/crawl-git-72c4674329(+0x6e1189) [0x55f16470e189]: 
/usr/games/crawl-git-72c4674329(_Z11choose_gameR11newgame_defS0_RKS_+0xcc) [0x55f16471052c]: choose_game(newgame_def&, newgame_def&, newgame_def const&)
/usr/games/crawl-git-72c4674329(_Z12startup_stepv+0x144e) [0x55f16482cb3e]: startup_step()
/usr/games/crawl-git-72c4674329(+0x92749f) [0x55f16495449f]: 
/usr/games/crawl-git-72c4674329(main+0x39b) [0x55f1642e2b9b]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7fbbe6049b97]: 
/usr/games/crawl-git-72c4674329(_start+0x2a) [0x55f1642e33da]: 

gdb not executable.

Compilation info:
<<<<<<<<<<<
Compiled with GCC 7.5.0
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 -Wno-format-zero-length -Wmissing-declarations -Wredundant-decls -Wno-parentheses -Wwrite-strings -Wshadow -pedantic -Wuninitialized -Iutil -I. -isystem contrib/install/x86_64-linux-gnu/include -g -DWIZARD -DASSERTS -DREGEX_PCRE -DCLUA_BINDINGS -DDGAMELAUNCH -DSAVE_DIR_PATH="/crawl-master/crawl-git-72c4674329/saves" -DSHARED_DIR_PATH="/crawl-master/crawl-git/saves" -DDATA_DIR_PATH="/crawl-master/crawl-git-72c4674329/data/" -DWEB_DIR_PATH="/crawl-master/crawl-git-72c4674329/data/web/" -D_GNU_SOURCE -D_DEFAULT_SOURCE -isystem /usr/include/ncursesw
LDFLAGS: -rdynamic -fuse-ld=gold -O2 
>>>>>>>>>>>

Place info:
branch = 0, depth = 1

Level id: D:1
Level build method = ABSENT, level layout type  = ABSENT, absdepth0 = 0

Markers:
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Messages:
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Data directory '/crawl-master/crawl-git-72c4674329/data/dat/' found.
Loading databases... Loading spells and features... Loading maps...
Hello, welcome to Dungeon Crawl Stone Soup 0.26-a0-639-g72c4674329!
(c) Copyright 1997-2002 Linley Henzell, 2002-2020 Crawl DevTeam
Options read from "Lanoc.rc".

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

Version history:
No version history (current version is 0.26-a0-639-g72c4674329)

Game state:

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

prev_cmd = CMD_NO_CMD
repeat_cmd = CMD_NO_CMD

Player:
{{{{{{{{{{{
Name:    [Lanoc]
Species: Palentonga
Job:     Wanderer

HP: 0/0; mods: 0/0
MP: 0/0; mod: 0
Stats: 15 (15) 13 (13) 8 (8)
Position: (0, 0) <OoB>, god: No God (0), turn_is_over: 0, banished: 0

Skills (mode: manual)
Name            | can_currently_train | train | training | level | points | progress
Fighting        |                     |   0   |     0    |    1  |      0 | -50/100
Short Blades    |                     |   0   |     0    |    0  |      0 | 0/50
Long Blades     |                     |   0   |     0    |    0  |      0 | 0/50
Axes            |                     |   0   |     0    |    0  |      0 | 0/50
Maces & Flails  |                     |   0   |     0    |    0  |      0 | 0/50
Polearms        |                     |   0   |     0    |    0  |      0 | 0/59
Staves          |                     |   0   |     0    |    0  |      0 | 0/50
Slings          |                     |   0   |     0    |    0  |      0 | 0/84
Bows            |                     |   0   |     0    |    0  |      0 | 0/70
Crossbows       |                     |   0   |     0    |    1  |      0 | -70/142
Throwing        |                     |   0   |     0    |    0  |      0 | 0/84
Armour          |                     |   0   |     0    |    1  |      0 | -70/142
Dodging         |                     |   0   |     0    |    0  |      0 | 0/70
Stealth         |                     |   0   |     0    |    1  |      0 | -84/168
Shields         |                     |   0   |     0    |    0  |      0 | 0/70
Unarmed Combat  |                     |   0   |     0    |    0  |      0 | 0/50
Spellcasting    |                     |   0   |     0    |    2  |      0 | -178/178
Conjurations    |                     |   0   |     0    |    0  |      0 | 0/59
Hexes           |                     |   0   |     0    |    0  |      0 | 0/50
Summonings      |                     |   0   |     0    |    0  |      0 | 0/70
Necromancy      |                     |   0   |     0    |    2  |      0 | -150/150
Translocations  |                     |   0   |     0    |    0  |      0 | 0/50
Transmutations  |                     |   0   |     0    |    0  |      0 | 0/50
Fire Magic      |                     |   0   |     0    |    0  |      0 | 0/70
Ice Magic       |                     |   0   |     0    |    0  |      0 | 0/70
Air Magic       |                     |   0   |     0    |    0  |      0 | 0/70
Earth Magic     |                     |   0   |     0    |    0  |      0 | 0/59
Poison Magic    |                     |   0   |     0    |    1  |      0 | -70/142
Invocations     |                     |   0   |     0    |    0  |      0 | 0/42
Evocations      |                     |   0   |     0    |    1  |      0 | -59/119

Spell bugs:

Durations:

Attributes:
    #59: 1

Mutations:
    rugged brown scales: 3 (innate)
    see invisible: 1 (innate)
    deformed body: 1 (innate)
    roll: 1 (innate)
    armoured tail: 1 (innate)

Inventory bugs:
    slot #0: item '+2 scale mail' has invalid link 27000
    slot #0: item '+2 scale mail' has invalid pos (0, 0) <OoB>
    slot #1: item ' of Xiuhoas' has invalid link 27000
    slot #1: item ' of Xiuhoas' has invalid pos (0, 0) <OoB>

Equipment:
    eq slot #6, inv slot #0: +2 scale mail (unknown)

}}}}}}}}}}}

Webtiles message buffer: 
Webtiles JSON stack:

Screenshot:
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