Created attachment 889020 [details] changed ebuild adding this line to app-misc/tracker-miners/tracker-miners-3.6.2.ebuild solves the problem: sed -i '39d; 780d' src/miners/fs/tracker-main.c || die
Please provide emerge --info and attach a full build log.
more info on https://wiki.gentoo.org/wiki/Attach_the_logs_to_the_bug_ticket please reopen this ticket (Status:UNCONFIRMED) afterwards.