tokudb_bugs.frm_store, tokudb_bugs.frm_store2, tokudb_bugs.frm_store3, tokudb.dir_per_db_rename_to_nonexisting_schema fail in buildbot with valgrind

tokudb_bugs.frm_store2                   w2 [ fail ]  Found warnings/errors in server log file!

        Test ended at 2017-05-13 21:40:44

line

==23717== 88 bytes in 1 blocks are possibly lost in loss record 9 of 17

==23717==    at 0x4C2A33D: memalign (vg_replace_malloc.c:858)

==23717==    by 0x40010F5: tls_get_addr_tail (in /lib64/ld-2.18.so)

==23717==    by 0xCB74AC0: ???

==23717==    by 0xCB74E75: ???

==23717==    by 0xCB74CDB: ???

==23717==    by 0xCB1FDBE: ???

==23717==    by 0xCB1FFD1: ???

==23717==    by 0xCACC5FD: ???

==23717==    by 0xCABB03B: ???

==23717==    by 0xCAB7A51: ???

==23717==    by 0x87F2DC: ha_finalize_handlerton(st_plugin_int*) (handler.cc:440)

==23717==    by 0x6961F6: plugin_deinitialize(st_plugin_int*, bool) (sql_plugin.cc:1176)

==23717==    by 0x696596: reap_plugins() (sql_plugin.cc:1249)

==23717==    by 0x6981F5: plugin_shutdown() (sql_plugin.cc:1900)

==23717==    by 0x5C09DF: clean_up(bool) (mysqld.cc:2023)

==23717==    by 0x5C07A1: unireg_end() (mysqld.cc:1936)