There is code in live ebuild of ansible to manually doins directories that are installed properly by distutils and fails. Removing this code installs ansible properly. Btw ansible-1.1 is out and 1.2 will be in first half of June. Reproducible: Always
Created attachment 348838 [details, diff] ansible-9999.ebuild.patch
+ 25 May 2013; Sergey Popov <pinkbyte@gentoo.org> ansible-9999.ebuild: + Remove manual installation of ansible modules, wrt bug #470890. Thanks to Jan + Pobrislo <ccx AT volny.cz> for discovering this issue