Late reply, sorry. Here's the output.
[2016-07-22 22:05:30 +0200] All files Staged
[2016-07-22 22:05:30 +0200] Testing if the newly downloaded RPMS can be installed without conflict
[2016-07-22 22:05:30 +0200] Testing RPM transaction
[2016-07-22 22:05:34 +0200] error: Failed dependencies:
[2016-07-22 22:05:34 +0200] mysql-server is needed by cpanel-roundcubemail-1.1.4-5.cp1158.noarch
[2016-07-22 22:05:34 +0200] W Exit Code: 209
[2016-07-22 22:05:34 +0200] ***** FATAL: Test install failed: error: Failed dependencies:
[2016-07-22 22:05:34 +0200] mysql-server is needed by cpanel-roundcubemail-1.1.4-5.cp1158.noarch
[2016-07-22 22:05:34 +0200] The Administrator will be notified to review this output when this script completes
[2016-07-22 22:05:34 +0200] ***** FATAL: Error testing if the RPMs will install: Test install failed: error: Failed dependencies:
[2016-07-22 22:05:34 +0200] mysql-server is needed by cpanel-roundcubemail-1.1.4-5.cp1158.noarch
[2016-07-22 22:05:34 +0200] see
https://go.cpanel.net/rpmcheckfailed for more information
[2016-07-22 22:05:34 +0200] The Administrator will be notified to review this output when this script completes
=> Log closed Fri Jul 22 22:05:34 2016
[2016-07-22 22:05:34 +0200] E Running `/usr/local/cpanel/scripts/updatenow --upcp --log=/var/cpanel/updatelogs/update.1469217755.log` failed, exited with code 1 (signal = 0)
=> Log closed Fri Jul 22 22:05:34 2016