mysql deamon fails to start

[ArchaB]

Tests for packages fail as mysql deamon fails to start.
On ppce RHEL architecture, on building the package a tmp folder is formed under /tmp. the daemon fails to start with the command below, run as part of testcases

[/tmp/testing-mysql-server6374051306685796804/bin/mysqld][--no-defaults][--basedir=/tmp/testing-mysql-server6374051306685796804][--socket=mysql.sock][--port=59281][--datadir=/tmp/testing-mysql-server6374051306685796804/data][--pid-file=/tmp/testing-mysql-server6374051306685796804/data/MysqldResource.pid]
[MysqldResource] launching mysqld (testing-mysql-server)
2016-05-26 10:18:30 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-05-26 10:18:30 0 [Note] /tmp/testing-mysql-server6374051306685796804/bin/mysqld (mysqld 5.6.30) starting as process 13567 ...
2016-05-26 10:18:30 13567 [ERROR] Can't read from messagefile '/tmp/testing-mysql-server6374051306685796804/share/english/errmsg.sys'
2016-05-26 10:18:30 13567 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!

2016-05-26 10:18:30 13567 [ERROR] Aborting

2016-05-26 10:18:30 13567 [Note] Binlog end
2016-05-26 10:18:30 13567 [Note]

I am able to start the server with the following command
/tmp/testing-mysql-server6374051306685796804/bin/mysql start

can anyone help on if any setting is being missed which fails to start the server as per the script