Indexes about nobrainer HOT 5 CLOSED

Version: rethinkdb 1.11.2 (CLANG 5.0 (clang-500.2.79))
error: Error in src/buffer_cache/mirrored/mirrored.cc at line 178:
error: Guarantee failed: [data_token.has()] 
error: Backtrace:
error: Wed Dec 18 21:46:09 2013

       1: 0   rethinkdb                           0x00000001032fa33f _ZStlsIN2ql5sym_tEER15write_message_tS3_RKNSt3__16vectorIT_NS4_9allocatorIS6_EEEE + 753 at 0x1032fa33f ()
       2: 0   rethinkdb                           0x0000000102f2f146 _ZNSt3__113__vector_baseIP20traversal_progress_tNS_9allocatorIS2_EEED2Ev + 1962 at 0x102f2f146 ()
       3: 0   rethinkdb                           0x0000000102f2f7a0 _ZNSt3__113__vector_baseIP20traversal_progress_tNS_9allocatorIS2_EEED2Ev + 3588 at 0x102f2f7a0 ()
       4: 0   rethinkdb                           0x0000000102f2edee _ZNSt3__113__vector_baseIP20traversal_progress_tNS_9allocatorIS2_EEED2Ev + 1106 at 0x102f2edee ()
       5: 0   rethinkdb                           0x00000001031d98eb _ZNSt3__16vectorIhNS_9allocatorIhEEE8__appendEm + 8731 at 0x1031d98eb ()
       6: 0   rethinkdb                           0x0000000102f4f466 _ZNSt3__112__deque_baseIyNS_9allocatorIyEEE5clearEv + 422 at 0x102f4f466 ()
       7: 0   rethinkdb                           0x0000000102f5384a _ZN26callable_action_instance_tIN5boost3_bi6bind_tIvNS0_4_mfi3mf2Iv14mc_inner_buf_tbP14file_account_tEENS1_5list3INS1_5valueIPS5_EENSA_IbEENSA_IS7_EEEEEEE10run_actionEv + 28 at 0x102f5384a ()
       8: 0   rethinkdb                           0x0000000102f28fb5 _ZN22linux_thread_message_tD0Ev + 885 at 0x102f28fb5 ()
error: Exiting.
Trace/BPT trap: 5

pafy@bisou ~/brainy % rake db:update_indexes
Created index User.name
pafy@bisou ~/brainy % rake db:update_indexes
Dropped index User.name
pafy@bisou ~/brainy % rake db:update_indexes
Created index User.name
pafy@bisou ~/brainy % rake db:update_indexes
Dropped index User.name
pafy@bisou ~/brainy % rake db:update_indexes
Created index User.name