# emerge -v =app-emulation/runc-1.1.5
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild  N     ] app-emulation/runc-1.1.5::core-kit  USE="kmem seccomp -apparmor -hardened -test" 0 KiB
Total: 1 package (1 new), Size of downloads: 0 KiB

>>> Verifying ebuild manifests
>>> Emerging (1 of 1) app-emulation/runc-1.1.5::core-kit
 * runc-1.1.5.tar.gz SHA512 size ;-) ...                                                                                                                                                                                                                                             [ ok ]
 * Determining the location of the kernel source code
 * Unable to find kernel sources at /usr/src/linux
 * Please make sure that /usr/src/linux points at your running kernel,
 * (or the kernel you wish to build against).
 * Alternatively, set the KERNEL_DIR environment variable to the kernel sources location
 * Unable to calculate Linux Kernel version for build, attempting to use running version
 * Checking for suitable kernel configuration options...                                                                                                                                                                                                                             [ ok ]
>>> Unpacking source...
>>> Unpacking runc-1.1.5.tar.gz to /var/tmp/portage/app-emulation/runc-1.1.5/work
>>> Source unpacked in /var/tmp/portage/app-emulation/runc-1.1.5/work
>>> Preparing source in /var/tmp/portage/app-emulation/runc-1.1.5/work/runc-1.1.5 ...
 * Tidying go.mod/go.sum
 * ERROR: app-emulation/runc-1.1.5::core-kit failed (prepare phase):
 *   Failed to tidy go.mod/go.sum: # get https://proxy.golang.org/github.com/moby/sys/mountinfo/@v/v0.5.0.mod
 * # get https://proxy.golang.org/github.com/cilium/ebpf/@v/v0.7.0.mod
 * # get https://proxy.golang.org/github.com/containerd/console/@v/v1.0.3.mod
 * # get https://proxy.golang.org/github.com/coreos/go-systemd/v22/@v/v22.3.2.mod
 * # get https://proxy.golang.org/github.com/docker/go-units/@v/v0.4.0.mod
 * # get https://proxy.golang.org/github.com/cyphar/filepath-securejoin/@v/v0.2.3.mod
 * # get https://proxy.golang.org/github.com/godbus/dbus/v5/@v/v5.0.6.mod
 * # get https://proxy.golang.org/github.com/checkpoint-restore/go-criu/v5/@v/v5.3.0.mod
 * # get https://proxy.golang.org/github.com/cilium/ebpf/@v/v0.7.0.mod: Get "https://proxy.golang.org/github.com/cilium/ebpf/@v/v0.7.0.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 * # get https://proxy.golang.org/github.com/checkpoint-restore/go-criu/v5/@v/v5.3.0.mod: Get "https://proxy.golang.org/github.com/checkpoint-restore/go-criu/v5/@v/v5.3.0.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 * # get https://proxy.golang.org/github.com/containerd/console/@v/v1.0.3.mod: Get "https://proxy.golang.org/github.com/containerd/console/@v/v1.0.3.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 * # get https://proxy.golang.org/github.com/mrunalp/fileutils/@v/v0.5.0.mod
 * # get https://proxy.golang.org/github.com/opencontainers/selinux/@v/v1.10.0.mod
 * # get https://proxy.golang.org/github.com/moby/sys/mountinfo/@v/v0.5.0.mod: Get "https://proxy.golang.org/github.com/moby/sys/mountinfo/@v/v0.5.0.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 * # get https://proxy.golang.org/github.com/docker/go-units/@v/v0.4.0.mod: Get "https://proxy.golang.org/github.com/docker/go-units/@v/v0.4.0.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 * # get https://proxy.golang.org/github.com/coreos/go-systemd/v22/@v/v22.3.2.mod: Get "https://proxy.golang.org/github.com/coreos/go-systemd/v22/@v/v22.3.2.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 * # get https://proxy.golang.org/github.com/seccomp/libseccomp-golang/@v/v0.9.2-0.20220502022130-f33da4d89646.mod
 * # get https://proxy.golang.org/github.com/sirupsen/logrus/@v/v1.8.1.mod
 ...
 * # get https://proxy.golang.org/golang.org/x/net/@v/v0.0.0-20201224014010-6772e930b67b.zip
 * # get https://proxy.golang.org/golang.org/x/net/@v/v0.0.0-20201224014010-6772e930b67b.zip: Get "https://proxy.golang.org/golang.org/x/net/@v/v0.0.0-20201224014010-6772e930b67b.zip": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network 
is unreachable
 * go: github.com/checkpoint-restore/go-criu/v5@v5.3.0: Get "https://proxy.golang.org/github.com/checkpoint-restore/go-criu/v5/@v/v5.3.0.mod": dial tcp: lookup proxy.golang.org on 192.168.12.12:53: dial udp 192.168.12.12:53: connect: network is unreachable
 *
 * Call stack:
 *     ebuild.sh, line   93:  Called src_prepare
 *   environment, line 1971:  Called go-module_src_prepare
 *   environment, line 1498:  Called _go-module_src_prepare_verify_gosum
 *   environment, line  397:  Called die
 * The specific snippet of code:
 *           die "Failed to tidy go.mod/go.sum: ${_go_mod_tidy_output}";
 *
 * If you need support, post the output of `emerge --info '=app-emulation/runc-1.1.5::core-kit'`,
 * the complete build log and the output of `emerge -pqv '=app-emulation/runc-1.1.5::core-kit'`.
 * The complete build log is located at '/var/log/portage/app-emulation:runc-1.1.5:20230411-062121.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/app-emulation/runc-1.1.5/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/app-emulation/runc-1.1.5/temp/environment'.
 * Working directory: '/var/tmp/portage/app-emulation/runc-1.1.5/work/runc-1.1.5'
 * S: '/var/tmp/portage/app-emulation/runc-1.1.5/work/runc-1.1.5'