* Package:    sys-cluster/zetcd-0.0.4
 * Repository: gentoo
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
 * Adding group 'zetcd' to your system ...
 *  - Groupid: next available
 * Adding user 'zetcd' to your system ...
 *  - Userid: 134
 *  - Shell: /sbin/nologin
 *  - Home: /dev/null
 *  - Groups: zetcd
 *  - GECOS: added by portage for zetcd
>>> Unpacking source...
 * Vendoring github.com/coreos/etcd github.com-coreos-etcd-714e7ec8db7f8398880197be10771fe89c480ee5.tar.gz
 * Vendoring google.golang.org/grpc github.com-grpc-grpc-go-777daa17ff9b5daef1cfdf915088a2ada3332bf0.tar.gz
 * Vendoring github.com/golang/protobuf github.com-golang-protobuf-4bd1920723d7b7c925de087aa32e2187708897f7.tar.gz
 * Vendoring google.golang.org/genproto github.com-google-go-genproto-ee236bd376b077c7a89f260c026c4735b195e459.tar.gz
>>> Source unpacked in /var/tmp/portage/sys-cluster/zetcd-0.0.4/work
>>> Preparing source in /var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4 ...
/var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4/src /var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4
failed to initialize build cache at /root/cache/go-build: mkdir /root/cache: permission denied
 * ERROR: sys-cluster/zetcd-0.0.4::gentoo failed (compile phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 124:  Called src_compile
 *   environment, line 838:  Called die
 * The specific snippet of code:
 *       GOPATH="${WORKDIR}/${P}" go build -o ${EGO_PN}/bin/zetcd -v -ldflags "-X ${EGO_PN}/version.Version=${PV} -X ${EGO_PN}/version.SHA=$ZETCD_COMMIT" ${EGO_PN}/cmd/zetcd || die;
 * 
 * If you need support, post the output of `emerge --info '=sys-cluster/zetcd-0.0.4::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-cluster/zetcd-0.0.4::gentoo'`.
 * The complete build log is located at '/var/log/portage/sys-cluster:zetcd-0.0.4:20190228-173716.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/sys-cluster/zetcd-0.0.4/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-cluster/zetcd-0.0.4/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4/src'
 * S: '/var/tmp/portage/sys-cluster/zetcd-0.0.4/work/zetcd-0.0.4'