upgrade from MySQL 5.7 regression, mysql.servers invalid structure

docker volumne create m57

docker run  --name m5701 --rm --publish 3306 -v m57:/var/lib/mysql:Z -e MYSQL_INITDB_SKIP_TZINFO=1 -e MYSQL_ROOT_PASSWORD=bob docker.io/library/mysql:5.7

...

2025-10-01T03:40:42.849417Z 0 [Note] Shutting down plugin 'binlog'

2025-10-01T03:40:42.850478Z 0 [Note] mysqld: Shutdown complete

Version: '5.7.44'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server (GPL)

2025-10-01T03:40:41.325586Z 0 [Note] Giving 0 client threads a chance to die gracefully

...

2025-10-01T03:40:42.849417Z 0 [Note] Shutting down plugin 'binlog'

2025-10-01T03:40:42.850478Z 0 [Note] mysqld: Shutdown complete

docker run -e MARIADB_AUTO_UPGRADE=1 -v m57:/var/lib/mysql:Z --user mysql quay.io/mariadb-foundation/mariadb-devel@sha256:189319d7417d9d5ee4eb509d1e156e1169e9dd44234ed11ee76ccd847f63d831  bash -x -v /usr/local/bin/docker-entrypoint.sh mariadbd

....

+ createHealthCheckUsers='CREATE USER IF NOT EXISTS healthcheck@'\''127.0.0.1'\'' IDENTIFIED BY '\''n"{6>f.QI>fX^_6"j/pc8R(ey$;&g"lE'\'';

SET PASSWORD FOR healthcheck@'\''127.0.0.1'\'' = PASSWORD('\''n"{6>f.QI>fX^_6"j/pc8R(ey$;&g"lE'\'');

GRANT USAGE ON *.* TO healthcheck@'\''127.0.0.1'\'';

CREATE USER IF NOT EXISTS healthcheck@'\''::1'\'' IDENTIFIED BY '\''n"{6>f.QI>fX^_6"j/pc8R(ey$;&g"lE'\'';

SET PASSWORD FOR healthcheck@'\''::1'\'' = PASSWORD('\''n"{6>f.QI>fX^_6"j/pc8R(ey$;&g"lE'\'');

GRANT USAGE ON *.* TO healthcheck@'\''::1'\'';

CREATE USER IF NOT EXISTS healthcheck@'\''localhost'\'' IDENTIFIED BY '\''n"{6>f.QI>fX^_6"j/pc8R(ey$;&g"lE'\'';

SET PASSWORD FOR healthcheck@'\''localhost'\'' = PASSWORD('\''n"{6>f.QI>fX^_6"j/pc8R(ey$;&g"lE'\'');

GRANT USAGE ON *.* TO healthcheck@'\''localhost'\'';'

+ docker_process_sql --dont-use-mysql-root-password --binary-mode

+ '[' --dont-use-mysql-root-password = --dont-use-mysql-root-password ']'

+ shift

+ MYSQL_PWD=

+ docker_exec_client --binary-mode

+ '[' -n '' ']'

+ mariadb --protocol=socket -uroot -hlocalhost --socket=/run/mariadb/mariadb.sock --binary-mode

2025-10-01  3:41:15 5 [ERROR] Missing system table mysql.roles_mapping; please run mysql_upgrade to create it

2025-10-01  3:41:15 5 [ERROR] Incorrect definition of table mysql.servers: expected column 'Host' at position 1 to have type varchar(, found type char(64).

2025-10-01  3:41:15 5 [ERROR] Incorrect definition of table mysql.servers: expected column 'Owner' at position 8 to have type varchar(, found type char(64).

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FLUSH PRIVILEGES

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ERROR 1728 (HY000) at line 5: Cannot load from mysql.servers. The table is probably corrupted