* Package:    dev-ruby/listen-3.0.3
 * Repository: gentoo
 * Maintainer: ruby@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux ruby_targets_ruby20 ruby_targets_ruby21 userland_GNU
 * FEATURES:   ccache preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
 * Running unpack phase for all ...
>>> Unpacking listen-3.0.3.tar.gz to /var/tmp/portage/dev-ruby/listen-3.0.3/work/all
>>> Source unpacked in /var/tmp/portage/dev-ruby/listen-3.0.3/work
>>> Preparing source in /var/tmp/portage/dev-ruby/listen-3.0.3/work ...
 * Running prepare phase for all ...
 * Running source copy phase for ruby20 ...
 * Running source copy phase for ruby21 ...
 * Running prepare phase for ruby20 ...
 * Running prepare phase for ruby21 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-ruby/listen-3.0.3/work ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-ruby/listen-3.0.3/work ...
 * Running compile phase for all ...
>>> Source compiled.
>>> Test phase [not enabled]: dev-ruby/listen-3.0.3

>>> Install listen-3.0.3 into /var/tmp/portage/dev-ruby/listen-3.0.3/image/ category dev-ruby
 * Running install phase for ruby20 ...
 * Running install phase for ruby21 ...
 * Running install phase for all ...
 * Running check install phase for ruby20 ...
 * Running check install phase for ruby21 ...
>>> Completed installing listen-3.0.3 into /var/tmp/portage/dev-ruby/listen-3.0.3/image/

ecompressdir: bzip2 -9 /usr/share/doc
 * checking 69 files for package collisions
 * This package will overwrite one or more files that may belong to other
 * packages (see list below). You can use a command such as `portageq
 * owners / <filename>` to identify the installed package that owns a
 * file. If portageq reports that only one package owns a file then do
 * NOT file a bug report. A bug report is only useful if it identifies at
 * least two or more packages that are known to install the same file(s).
 * If a collision occurs and you can not explain where the file came from
 * then you should simply ignore the collision since there is not enough
 * information to determine if a real problem exists. Please do NOT file
 * a bug report at http://bugs.gentoo.org unless you report exactly which
 * two packages install the same file(s). See
 * http://wiki.gentoo.org/wiki/Knowledge_Base:Blockers for tips on how to
 * solve the problem. And once again, please do NOT file a bug report
 * unless you have completely understood the above message.
 * 
 * Detected file collision(s):
 * 
 * 	/usr/bin/listen
 * 
 * Searching all installed packages for file collisions...
 * 
 * Press Ctrl-C to Stop
 * 
 * dev-ruby/listen-2.8.6:2::gentoo
 * 	/usr/bin/listen
 * 
 * Package 'dev-ruby/listen-3.0.3' NOT merged due to file collisions. If
 * necessary, refer to your elog messages for the whole content of the
 * above message.
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="" JAVA_HOME="/slowfs/ca14h1/nbowler/.gentoo/java-config-2/current-user-vm"
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info =listen-3.0.3