none of the mirrors listed in the ebuild file appear to contain the above version
*** Bug 599436 has been marked as a duplicate of this bug. ***
commit 12fc38028682a5f5402499256f9e1bfe57026663 Author: Lars Wendler <polynomial-c@gentoo.org> Date: Fri Nov 11 08:23:33 2016 package.mask: Masked =sys-apps/net-tools-1.60_p20161110235919 (bug #599434).
*** Bug 599444 has been marked as a duplicate of this bug. ***