rawhide buildroot creation changes

[Rex Dieter]

Dennis Gilmore wrote:

> as of this morning US time we have changed the way rawhide buildroots are
> created in koji.  rawhide is now using dnf to install the packages into
> the buildroot. this means that in f24 and on dnf will be used to create
> the buildroot. as well as manage the updates on your system.
> 
> We will not be making the same change to f22 or f23 in koji,  yum will
> continue to create the buildroot there.  please report to Release
> Engineering
> [1][2][3] any issue you encounter as a result of this change.

Seems all (most?) rawhide builds are failing now.

https://fedorahosted.org/rel-eng/ticket/6273

-- Rex