Mercurial Failed to clone error

I get the following error when I use https:

abort: partial pull cannot be done because other repository doesn't support changegroupsubset
ERROR: Failed to clone <repo link>

From what i can tell my hosting provider does not support some mercurial feature that Cloud Build is relying on. A possible solution is using an ssh repo link but Unity does not currently support that for Mercurial.

Does anyone know of any other possible solutions to my problem (without switching to a different SCM or host) ?