[gentoo-user] bundler-2.1.4 failing to emerge

I'm updating my system, but it is stopping on dev-ruby/bundler-2.1.4

According rebuild, below it shouldn't be related to new "python"

[ebuild   R   ] dev-ruby/bundler-2.1.4  USE="doc -test" RUBY_TARGETS="ruby27 -ruby26*"

------message--------
ERROR: compile
ERROR: dev-ruby/bundler-2.1.4::gentoo failed (compile phase):
   failed to (re)build documentation

Call stack:
     ebuild.sh, line  127:  Called src_compile
   environment, line 2182:  Called ruby-ng_src_compile
   environment, line 1782:  Called _ruby_invoke_environment 'all' 'all_ruby_compile'
   environment, line  618:  Called all_ruby_compile
   environment, line  727:  Called all_fakegem_compile
   environment, line  688:  Called die
The specific snippet of code:
                   rdoc ${RUBY_FAKEGEM_DOC_SOURCES} || die "failed to (re)build documentation";

If you need support, post the output of `emerge --info '=dev-ruby/bundler-2.1.4::gentoo'`,
the complete build log and the output of `emerge -pqv '=dev-ruby/bundler-2.1.4::gentoo'`.
The complete build log is located at '/var/tmp/portage/dev-ruby/bundler-2.1.4/temp/build.log'.
The ebuild environment file is located at '/var/tmp/portage/dev-ruby/bundler-2.1.4/temp/environment'.
Working directory: '/var/tmp/portage/dev-ruby/bundler-2.1.4/work/all/bundler-2.1.4'
S: '/var/tmp/portage/dev-ruby/bundler-2.1.4/work/all/bundler-2.1.4'

-- 
Thelma