emerge screen -v

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild R ] app-misc/screen-4.6.1::gentoo USE="pam (selinux) -debug -multiuser -nethack" 0 KiB

Total: 1 package (1 reinstall), Size of downloads: 0 KiB

>>> Verifying ebuild manifests
>>> Emerging (1 of 1) app-misc/screen-4.6.1::gentoo
>>> Failed to emerge app-misc/screen-4.6.1, Log file:
>>> '/var/tmp/portage/app-misc/screen-4.6.1/temp/build.log'
>>> Jobs: 0 of 1 complete, 1 failed Load avg: 1.32, 1.23, 1.08
* Package: app-misc/screen-4.6.1
* Repository: gentoo
* Maintainer: swegener@gentoo.org shell-tools@gentoo.org
* USE: abi_x86_64 amd64 elibc_glibc kernel_linux pam selinux userland_GNU
* FEATURES: ccache network-sandbox preserve-libs sandbox selinux sesandbox userpriv usersandbox
Unable to configure loopback interface: Permission denied
>>> Unpacking source...
>>> Unpacking screen-4.6.1.tar.gz to /var/tmp/portage/app-misc/screen-4.6.1/work
* ERROR: app-misc/screen-4.6.1::gentoo failed (unpack phase):
* unpack: screen-4.6.1.tar.gz does not exist
*
* Call stack:
* ebuild.sh, line 125: Called src_unpack
* environment, line 3337: Called default
* phase-functions.sh, line 855: Called default_src_unpack
* phase-functions.sh, line 882: Called __eapi0_src_unpack
* phase-helpers.sh, line 755: Called unpack 'screen-4.6.1.tar.gz'
* phase-helpers.sh, line 350: Called die
* The specific snippet of code:
* [[ ! -s ${srcdir}${x} ]] && die "unpack: ${x} does not exist"
*
* If you need support, post the output of `emerge --info '=app-misc/screen-4.6.1::gentoo'`,
* the complete build log and the output of `emerge -pqv '=app-misc/screen-4.6.1::gentoo'`.
* The complete build log is located at '/var/tmp/portage/app-misc/screen-4.6.1/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/app-misc/screen-4.6.1/temp/environment'.
* Working directory: '/var/tmp/portage/app-misc/screen-4.6.1/work'
* S: '/var/tmp/portage/app-misc/screen-4.6.1/work/screen-4.6.1'

* Messages for package app-misc/screen-4.6.1:

* ERROR: app-misc/screen-4.6.1::gentoo failed (unpack phase):
* unpack: screen-4.6.1.tar.gz does not exist
*
* Call stack:
* ebuild.sh, line 125: Called src_unpack
* environment, line 3337: Called default
* phase-functions.sh, line 855: Called default_src_unpack
* phase-functions.sh, line 882: Called __eapi0_src_unpack
* phase-helpers.sh, line 755: Called unpack 'screen-4.6.1.tar.gz'
* phase-helpers.sh, line 350: Called die
* The specific snippet of code:
* [[ ! -s ${srcdir}${x} ]] && die "unpack: ${x} does not exist"
*
* If you need support, post the output of `emerge --info '=app-misc/screen-4.6.1::gentoo'`,
* the complete build log and the output of `emerge -pqv '=app-misc/screen-4.6.1::gentoo'`.
* The complete build log is located at '/var/tmp/portage/app-misc/screen-4.6.1/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/app-misc/screen-4.6.1/temp/environment'.
* Working directory: '/var/tmp/portage/app-misc/screen-4.6.1/work'
* S: '/var/tmp/portage/app-misc/screen-4.6.1/work/screen-4.6.1'
*
* The following package has failed to build, install, or execute postinst:
*
* (app-misc/screen-4.6.1:0/0::gentoo, ebuild scheduled for merge), Log file:
* '/var/tmp/portage/app-misc/screen-4.6.1/temp/build.log'