De: "Jakub Cajka"
Have you investigated the build failures to have such strong claim?
I, obviously hadn't have the time to investigate each failure
However, given the builds ran in parallel on the same computer, pointing to the same repositories (with the exception of Go 1.9 forcing in one case), and a large part of the spec stash completely replaces the Fedora Go package baseline with up to date code (often the upstream last commit or release) that actually runs unit tests I'm pretty sure you can not blame the failures on outdated packages.
On the contrary I suspect some of the packages that pass in your tests are obsolete code with disabled unit tests so you're not seeing all the problems.
Regards,