Our automated repository checks [1] have detected that the 'v-fox' repository contains ebuilds that trigger fatal errors during the cache regeneration. This usually means that the ebuilds call 'die' in global scope indicating serious issues. Global-scope failures prevent the ebuild not only from being installed but also from being properly processed by the Package Manager. Since metadata can not be obtained for those ebuilds, no cache entries are created for them and the Package Manager needs to retry running them every time it stumbles upon them. This involves both a serious slowdown and repeating error output while performing dependency resolution. The most common cause of global-scope failures is use of removed or banned APIs in old ebuilds. In particular, this includes eclasses being removed or removing support for old EAPIs. Nonetheless there are also other issues such as performing illegal operations in global scope (external program calls), malformed bash in ebuilds or malformed metadata.xml. The error log for the repository can be found at: https://qa-reports.gentoo.org/output/repos/v-fox.html In particular, please look for highlighted '!!! ERROR' and '!!! caught exception' lines. The former usually mean failures coming from eclasses and the ebuild itself, while exceptions usually mean malformed ebuilds or metadata.xml. While at it, please consider fixing global-scope 'use' call warnings (if any). They are not fatal but are considered a serious QA violation. 'use' functions must not ever be called outside of phase functions. Please fix the issue ASAP, possibly via removing unmaintained, old ebuilds. We reserve the right to remove the repository from our list if we do not receive any reply within 4 weeks. [1]:https://wiki.gentoo.org/wiki/Project:Repository_mirror_and_CI
Ah, I'm afraid I've abandoned Gentoo for a while now for use of openSUSE with OBS for packaging by public build cluster. Pretty much all ebuilds have to be updated and there is no chance of me doing it unless OBS would die under its new HP management. But even them I would probably migrate to ROSA Linux and its ABF system. Building everything on your own system just doesn't cut it anymore for me :(
The repository has been removed, rendering this bug obsolete.