As stated release-174 doesn’t work on Synology DSM6 DS918+.
Release-173 works perfectly. No idea what changed.
Errors displayed in the ruTorrent interface log:
[27.11.2018 11:46:27] Bad response from server: (500 [error,list]) Warning: XMLRPC call is failed.
Errors displayed in Synology’s Docker Container log
[27-Nov-2018 11:34:06] NOTICE: PHP message: PHP Warning: PHP Startup: Unable to load dynamic library 'xmlrpc' (tried: /usr/lib/php7/modules/xmlrpc (Error loading shared library /usr/lib/php7/modules/xmlrpc: No such file or directory), /usr/lib/php7/modules/xmlrpc.so (Error loading shared library /usr/lib/php7/modules/xmlrpc.so: No such file or directory)) in Unknown on line 0