MarsSeed [1] filed a deletion request for virtualbox-beta-bin [2]: I suggest to delete this package.
Oracle seems to have discontinued providing beta builds since 2019. They only provide "test builds" from the "stable" and "development" branches. [a] [a]: https://www.virtualbox.org/wiki/Testbuilds [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/virtualbox-beta-bin/
