MariaBackup full backup failed with InnoDB: Failing assertion: success in storage/innobase/fil/fil0fil.cc line 657

mariabackup: Generating a list of tablespaces

2019-01-10  3:51:49 0 [Warning] InnoDB: Allocated tablespace ID 3 for mysql/transaction_registry, old maximum was 0

2019-01-10  3:51:49 0 [ERROR] InnoDB: Operating system error number 2 in a file operation.

2019-01-10  3:51:49 0 [ERROR] InnoDB: The error means the system cannot find the path specified.

2019-01-10  3:51:49 0 [ERROR] InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them.

2019-01-10  3:51:49 0 [ERROR] InnoDB: File ./test/#sql-6041_11.ibd: 'open' returned OS error 71.

2019-01-10 03:51:49 0x7fa4fbbdb740  InnoDB: Assertion failure in file /home/travis/src/storage/innobase/fil/fil0fil.cc line 657

InnoDB: Failing assertion: success

InnoDB: We intentionally generate a memory trap.

/home/travis/server/bin/mariabackup(+0xfc703a)[0x55e5bbb9003a]

/home/travis/server/bin/mariabackup(+0xd38cdf)[0x55e5bb901cdf]

ut/ut0mem.cc:42(ut_strlcpy(char*, char const*, unsigned long))[0x55e5bb905105]

fil/fil0fil.cc:658(fil_node_open_file(fil_node_t*))[0x55e5bb1e3d2e]

fil/fil0fil.cc:1647(fil_space_t::open())[0x55e5bb1e4126]

mariabackup/xtrabackup.cc:3136(xb_load_single_table_tablespace(char const*, char const*, bool))[0x55e5bb1e46c1]

mariabackup/xtrabackup.cc:3251(enumerate_ibd_files(void (*)(char const*, char const*, bool)))[0x55e5bb1e6509]

mariabackup/xtrabackup.cc:3421(xb_load_tablespaces())[0x55e5bb1eda33]

mariabackup/xtrabackup.cc:4250(xtrabackup_backup_func())[0x55e5bb1ed283]

/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fa4f9830830]

/home/travis/server/bin/mariabackup(_start+0x29)[0x55e5bb1dcef9]