Suspect CL https://chromium-review.googlesource.com/#/c/540792/

openocd-0.10.0: >>> Emerging (1 of 1) dev-embedded/openocd-0.10.0::portage-stable for /build/guado_moblab/
openocd-0.10.0:  * openocd-0.10.0.tar.gz SHA256 SHA512 WHIRLPOOL size ;-) ...            [ ok ]
openocd-0.10.0:  * Running stacked hooks for pre_pkg_setup
openocd-0.10.0:  *    sysroot_build_bin_dir ...
openocd-0.10.0:  [ ok ]
openocd-0.10.0:  * Adding /mnt/host/source/src/overlays/project-freon/profiles/base/accounts to user/group search path.
openocd-0.10.0:  * Adding /mnt/host/source/src/third_party/eclass-overlay/profiles/base/accounts to user/group search path.
openocd-0.10.0:  * ERROR: dev-embedded/openocd-0.10.0::portage-stable failed (setup phase):
openocd-0.10.0:  *   No entry for plugdev in any overlay.
openocd-0.10.0:  * 
openocd-0.10.0:  * Call stack:
openocd-0.10.0:  *               ebuild.sh, line  93:  Called pkg_setup
openocd-0.10.0:  *   openocd-0.10.0.ebuild, line  43:  Called enewgroup 'plugdev'
openocd-0.10.0:  *             user.eclass, line 434:  Called _get_value_for_group 'plugdev' 'group'
openocd-0.10.0:  *             user.eclass, line 148:  Called die
openocd-0.10.0:  * The specific snippet of code:
openocd-0.10.0:  *   	[[ -z "${template}" ]] && die "No entry for ${group} in any overlay."
openocd-0.10.0:  * 
openocd-0.10.0:  * If you need support, post the output of `emerge --info '=dev-embedded/openocd-0.10.0::portage-stable'`,
openocd-0.10.0:  * the complete build log and the output of `emerge -pqv '=dev-embedded/openocd-0.10.0::portage-stable'`.
openocd-0.10.0:  * The complete build log is located at '/build/guado_moblab/tmp/portage/logs/dev-embedded:openocd-0.10.0:20170621-184018.log'.
openocd-0.10.0:  * For convenience, a symlink to the build log is located at '/build/guado_moblab/tmp/portage/dev-embedded/openocd-0.10.0/temp/build.log'.
openocd-0.10.0:  * The ebuild environment file is located at '/build/guado_moblab/tmp/portage/dev-embedded/openocd-0.10.0/temp/die.env'.
openocd-0.10.0:  * Working directory: '/usr/lib64/portage/pym'
openocd-0.10.0:  * S: '/build/guado_moblab/tmp/portage/dev-embedded/openocd-0.10.0/work/openocd-0.10.0'
openocd-0.10.0: >>> Failed to emerge dev-embedded/openocd-0.10.0 for /build/guado_moblab/, Log file:
openocd-0.10.0: >>>  '/build/guado_moblab/tmp/portage/logs/dev-embedded:openocd-0.10.0:20170621-184018.log'
openocd-0.10.0: 
openocd-0.10.0:  * Messages for package dev-embedded/openocd-0.10.0 merged to /build/guado_moblab/:
openocd-0.10.0: 
openocd-0.10.0:  * ERROR: dev-embedded/openocd-0.10.0::portage-stable failed (setup phase):
openocd-0.10.0:  *   No entry for plugdev in any overlay.
openocd-0.10.0:  * 
openocd-0.10.0:  * Call stack:
openocd-0.10.0:  *               ebuild.sh, line  93:  Called pkg_setup
openocd-0.10.0:  *   openocd-0.10.0.ebuild, line  43:  Called enewgroup 'plugdev'
openocd-0.10.0:  *             user.eclass, line 434:  Called _get_value_for_group 'plugdev' 'group'
openocd-0.10.0:  *             user.eclass, line 148:  Called die
openocd-0.10.0:  * The specific snippet of code:
openocd-0.10.0:  *   	[[ -z "${template}" ]] && die "No entry for ${group} in any overlay."
openocd-0.10.0:  * 
openocd-0.10.0:  * If you need support, post the output of `emerge --info '=dev-embedded/openocd-0.10.0::portage-stable'`,
openocd-0.10.0:  * the complete build log and the output of `emerge -pqv '=dev-embedded/openocd-0.10.0::portage-stable'`.
openocd-0.10.0:  * The complete build log is located at '/build/guado_moblab/tmp/portage/logs/dev-embedded:openocd-0.10.0:20170621-184018.log'.
openocd-0.10.0:  * For convenience, a symlink to the build log is located at '/build/guado_moblab/tmp/portage/dev-embedded/openocd-0.10.0/temp/build.log'.
openocd-0.10.0:  * The ebuild environment file is located at '/build/guado_moblab/tmp/portage/dev-embedded/openocd-0.10.0/temp/die.env'.
openocd-0.10.0:  * Working directory: '/usr/lib64/portage/pym'
openocd-0.10.0:  * S: '/build/guado_moblab/tmp/portage/dev-embedded/openocd-0.10.0/work/openocd-0.10.0'
=== Complete: job openocd-0.10.0 (0m8.6s) ===
Failed dev-embedded/openocd-0.10.0 (in 0m8.6s). Your build has failed.
Pending 11/712, [Time 11:40:27 | Elapsed 58m1.7s | Load 1.13 3.92 15.27]
Packages failed:
	dev-embedded/openocd-0.10.0