[Draft] Server crashed in dict_index_t::is_corrupted

#3  <signal handler called>

#4  0x00005631f16cb6fe in dict_index_t::is_corrupted (this=0x40600000000) at /home/travis/src/storage/innobase/include/dict0mem.h:1983

#5  0x00005631f182a343 in row_purge_upd_exist_or_extern_func (thr=0x5631f50aeb08, node=0x5631f50aebc0, undo_rec=0x7f70f81d6710 "\001\312\f") at /home/travis/src/storage/innobase/row/row0purge.cc:897

#6  0x00005631f182b07b in row_purge_record_func (node=0x5631f50aebc0, undo_rec=0x7f70f81d6710 "\001\312\f", thr=0x5631f50aeb08, updated_extern=false) at /home/travis/src/storage/innobase/row/row0purge.cc:1201

#7  0x00005631f182b21d in row_purge (node=0x5631f50aebc0, undo_rec=0x7f70f81d6710 "\001\312\f", thr=0x5631f50aeb08) at /home/travis/src/storage/innobase/row/row0purge.cc:1245

#8  0x00005631f182b5c8 in row_purge_step (thr=0x5631f50aeb08) at /home/travis/src/storage/innobase/row/row0purge.cc:1331

#9  0x00005631f17af4b0 in que_thr_step (thr=0x5631f50aeb08) at /home/travis/src/storage/innobase/que/que0que.cc:1046

#10 0x00005631f17af6e0 in que_run_threads_low (thr=0x5631f50aeb08) at /home/travis/src/storage/innobase/que/que0que.cc:1108

#11 0x00005631f17af8d0 in que_run_threads (thr=0x5631f50aeb08) at /home/travis/src/storage/innobase/que/que0que.cc:1148

#12 0x00005631f18a4371 in trx_purge (n_purge_threads=4, truncate=false) at /home/travis/src/storage/innobase/trx/trx0purge.cc:1614

#13 0x00005631f18766ba in srv_do_purge (n_total_purged=0x7f70d5d6fe90) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2600

#14 0x00005631f1876ae3 in srv_purge_coordinator_thread (arg=0x0) at /home/travis/src/storage/innobase/srv/srv0srv.cc:2723

#15 0x00007f70ffa95184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0

#16 0x00007f70fefa1ffd in clone () from /lib/x86_64-linux-gnu/libc.so.6

perl ./runall-new.pl --basedir=/home/travis/server --vardir=/home/travis/logs/vardir --duration=350 --threads=6 --seed=1538972949 --reporters=Backtrace,ErrorLog,Deadlock --validators=TransformerNoComparator --views --redefine=conf/mariadb/alter_table.yy --redefine=conf/mariadb/sp.yy --redefine=conf/mariadb/bulk_insert.yy --redefine=conf/mariadb/versioning.yy --redefine=conf/mariadb/sequences.yy --mysqld=--log_output=FILE --mysqld=--max-statement-time=30 --mysqld=--lock-wait-timeout=10 --mysqld=--loose-innodb-lock-wait-timeout=5 --mysqld=--loose-debug_assert_on_not_freed_memory=0 --grammar=conf/runtime/metadata_stability.yy --gendata=conf/runtime/metadata_stability.zz --skip-gendata --gendata-advanced --vcols --transformers=ExecuteAsIntersect,ExecuteAsExcept,ExecuteAsCTE,ExecuteAsExecuteImmediate,ExecuteAsDeleteReturning,ExecuteAsInsertSelect,ExecuteAsUnion,ExecuteAsUpdateDelete,ExecuteAsView,ExecuteAsPreparedTwice