This package still uses ruby 2.2. Upstream is no longer supporting Ruby 2.2 and security support ends on March 1st, 2018. Ruby 2.2 will be masked for removal on or shortly after this date, along with any packages still depending on ruby22. Please update your package to use a newer ruby slot. Use ruby 2.3 if you can only use one slot and your package is in arch Use ruby 2.4 if you can only use one slot and your package is in ~arch Use as many ruby targets as possible when you can use multiple slots.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ab0f7dfc22b54f530c5d10ba5e9ae0e2176cdb41 commit ab0f7dfc22b54f530c5d10ba5e9ae0e2176cdb41 Author: Michael Palimaka <kensington@gentoo.org> AuthorDate: 2018-01-25 11:37:12 +0000 Commit: Michael Palimaka <kensington@gentoo.org> CommitDate: 2018-01-25 11:37:21 +0000 media-libs/mlt: switch to ruby 2.3 Bug: https://bugs.gentoo.org/645606 Package-Manager: Portage-2.3.19, Repoman-2.3.6 media-libs/mlt/{mlt-6.4.1-r5.ebuild => mlt-6.4.1-r6.ebuild} | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)}
Old version is gone.