gcol.innodb_virtual_debug failed in buildbot with Assertion `n_fields > 0' failure

gcol.innodb_virtual_debug 'innodb'       w4 [ fail ]

        Test ended at 2019-03-25 05:16:44

CURRENT_TEST: gcol.innodb_virtual_debug

Warning: /mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded: unknown variable 'loose-ssl-ca=/mnt/buildbot/build/mariadb-10.3.14/mysql-test/std_data/cacert.pem'

Warning: /mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded: unknown variable 'loose-ssl-cert=/mnt/buildbot/build/mariadb-10.3.14/mysql-test/std_data/client-cert.pem'

Warning: /mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded: unknown variable 'loose-ssl-key=/mnt/buildbot/build/mariadb-10.3.14/mysql-test/std_data/client-key.pem'

Warning: /mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded: unknown option '--loose-skip-ssl'

mysqltest_embedded: /home/buildbot/buildbot/build/mariadb-10.3.14/storage/innobase/include/rem0rec.ic:1244: void rec_offs_set_n_fields(ulint*, ulint): Assertion `n_fields > 0' failed.

mysqltest got signal 6

read_command_buf (0x82d91c98): ALTE

conn->name (0x82e14dd8): 

conn->cur_query (0x83081df8): ALTER TABLE t ADD INDEX idc(c)

Attempting backtrace...

stack_bottom = 0x0 thread_stack 0x49000

/mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded(my_print_stacktrace+0x3c)[0x8038ddb6]

/mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded(+0x30e5bd)[0x803705bd]

mysys/stacktrace.c:269(my_print_stacktrace)[0x803705fb]

addr2line: '': No such file

[0xb77a9c14]

[0xb77a9c31]

/lib/i386-linux-gnu/libc.so.6(gsignal+0x39)[0xb7115e89]

/lib/i386-linux-gnu/libc.so.6(abort+0x157)[0xb71173e7]

/lib/i386-linux-gnu/libc.so.6(+0x24d07)[0xb710ed07]

/lib/i386-linux-gnu/libc.so.6(+0x24d8b)[0xb710ed8b]

/mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded(+0xb4bd35)[0x80badd35]

/mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded(+0xb4e0c8)[0x80bb00c8]

/mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded(+0xafcc24)[0x80b5ec24]

/mnt/buildbot/build/mariadb-10.3.14/libmysqld/examples/mysqltest_embedded(+0xace12a)[0x80b3012a]

include/rem0rec.ic:1245(rec_offs_set_n_fields(unsigned int*, unsigned int))[0x80ab9962]

rem/rem0rec.cc:867(rec_get_offsets_func(unsigned char const*, dict_index_t const*, unsigned int*, bool, unsigned int, char const*, unsigned int, mem_block_info_t**))[0x80abc1bb]

page/page0cur.cc:745(page_cur_search_with_match_bytes(buf_block_t const*, dict_index_t const*, dtuple_t const*, page_cur_mode_t, unsigned int*, unsigned int*, unsigned int*, unsigned int*, page_cur_t*))[0x80bea076]

btr/btr0cur.cc:1837(btr_cur_search_to_nth_level_func(dict_index_t*, unsigned int, dtuple_t const*, page_cur_mode_t, unsigned int, btr_cur_t*, rw_lock_t*, char const*, unsigned int, mtr_t*, unsigned long long))[0x80bea630]

include/btr0pcur.ic:459(btr_pcur_open_low(dict_index_t*, unsigned int, dtuple_t const*, page_cur_mode_t, unsigned int, btr_pcur_t*, char const*, unsigned int, unsigned long long, mtr_t*))[0x80beb251]

row/row0row.cc:1136(row_search_index_entry(dict_index_t*, dtuple_t const*, unsigned int, btr_pcur_t*, mtr_t*))[0x80bebfd7]

row/row0purge.cc:569(row_purge_remove_sec_if_poss_leaf(purge_node_t*, dict_index_t*, dtuple_t const*))[0x80bec195]

row/row0purge.cc:893(row_purge_upd_exist_or_extern_func(que_thr_t const*, purge_node_t*, unsigned char*))[0x80bec3ca]

row/row0purge.cc:1206(row_purge_record_func(purge_node_t*, unsigned char*, que_thr_t const*, bool))[0x80bf29d2]

row/row0purge.cc:1250(row_purge(purge_node_t*, unsigned char*, que_thr_t*))[0x80bf2c17]

row/row0purge.cc:1311(row_purge_step(que_thr_t*))[0x80bf2e19]

que/que0que.cc:1042(que_thr_step(que_thr_t*))[0x80aab044]

trx/trx0purge.cc:1603(trx_purge(unsigned int, bool))[0x80d007c4]

srv/srv0srv.cc:2595(srv_do_purge(unsigned int*))[0x80d00c09]

/lib/i386-linux-gnu/libpthread.so.0(+0x62b5)[0xb77802b5]

/lib/i386-linux-gnu/libc.so.6(clone+0x6e)[0xb71d116e]

Writing a core file...