Colony?? More like a proxy to be honest russia is just getting resources and influence. It is said that russia does not mind assad going as long as its bases stay.SAA is Russia auxiliary army. Syria is Russia's colony. I think everyone is aware of this. Though not officially, Syria is part of Russia.
In the current world, small weak countries don't have sovereignty. Only a few super powers have sovereignty.
The attack failed due to Russia called off the attack. Russia was testing how well defended it will be. The Turks spared no time in doing artillery attacks which resulted in casualties for Assad.