* Package:    dev-ruby/minitest-5.10.2
 * Repository: gentoo
 * Maintainer: ruby@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux ruby_targets_ruby24 userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
 * Running unpack phase for all ...
 * Unpacking .gem file... ...
 [ ok ]
 * Uncompressing metadata ...
 [ ok ]
 * Unpacking data.tar.gz ...
 [ ok ]
>>> Source unpacked in /var/tmp/portage/dev-ruby/minitest-5.10.2/work
>>> Preparing source in /var/tmp/portage/dev-ruby/minitest-5.10.2/work ...
 * Running prepare phase for all ...
 * Running prepare phase for all ...
 * Running source copy phase for ruby24 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-ruby/minitest-5.10.2/work ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-ruby/minitest-5.10.2/work ...
 * Running compile phase for all ...
>>> Source compiled.
>>> Test phase [not enabled]: dev-ruby/minitest-5.10.2

>>> Install minitest-5.10.2 into /var/tmp/portage/dev-ruby/minitest-5.10.2/image/ category dev-ruby
 * Running install phase for ruby24 ...
/usr/lib64/ruby/2.4.0/yaml.rb:5:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
/usr/lib64/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- psych/syntax_error (LoadError)
	from /usr/lib64/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib64/ruby/2.4.0/yaml.rb:6:in `<top (required)>'
	from /usr/lib64/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib64/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
 * ERROR: dev-ruby/minitest-5.10.2::gentoo failed (install phase):
 *   Unable to generate gemspec file.
 * 
 * Call stack:
 *     ebuild.sh, line  115:  Called src_install
 *   environment, line 4482:  Called ruby-ng_src_install
 *   environment, line 4180:  Called _ruby_each_implementation 'each_ruby_install'
 *   environment, line  477:  Called _ruby_invoke_environment 'ruby24' 'each_ruby_install'
 *   environment, line  598:  Called each_ruby_install
 *   environment, line  895:  Called each_fakegem_install
 *   environment, line  865:  Called ruby_fakegem_install_gemspec
 *   environment, line 4368:  Called die
 * The specific snippet of code:
 *       fi ) || die "Unable to generate gemspec file.";
 * 
 * If you need support, post the output of `emerge --info '=dev-ruby/minitest-5.10.2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-ruby/minitest-5.10.2::gentoo'`.
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="" JAVA_HOME=""
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info =minitest-5.10.2
 * The complete build log is located at '/var/tmp/portage/dev-ruby/minitest-5.10.2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-ruby/minitest-5.10.2/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-ruby/minitest-5.10.2/work/ruby24/minitest-5.10.2'
 * S: '/var/tmp/portage/dev-ruby/minitest-5.10.2/work/ruby24/minitest-5.10.2'