Maybe this should be submitted "upstream" to the main gentoo-x86 tree but I will let someone else decide that. I couldn't get cpio to compile, so first I turned MAKEOPTS to j1, still didn't work so I turned off distcc and then it finished successfully.
Created attachment 144959 [details] build.log with FEATURES=distcc..failure
hm,mm, you seem to be the only one who ever hit this...
bleh, I'm lazy.