sys-apps/attr is a wrong dependency on g/fbsd which is a component provided by freebsd-bin packages; sys-apps/attr must be inherit only on Linux archs. attached there is an ebuild patch that fix the problem. Reproducible: Always
Created attachment 143951 [details, diff] rsync-3.0.0_pre9.ebuild.patch
fixed rsync-3.0.0_pre8 and pre9