Ignore fail on non empty ext and gems [ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58613 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Ignore fail on non empty ext and gems [ci skip]
removal of non empty directories. these directories should not
be empty when in-place build.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58613 b2dd03c8-39d4-4d8f-98ff-823fe69b080e