Please see build log excerpts below & compressed ./test-suite.log
attached.

g1@g1 ~/src/guix$ guix environment -e "(@ (gnu packages package-management) guix)" -M 4 -c 4
g1@g1 ~/src/guix [env]$ rm -fr /home/g1/.cache/guile/ccache/*
g1@g1 ~/src/guix [env]$ sudo rm -fr ./test-tmp
g1@g1 ~/src/guix [env]$ make clean-go
g1@g1 ~/src/guix [env]$ ./bootstrap
g1@g1 ~/src/guix [env]$ ./configure --localstatedir=/var --sysconfdir=/etc
g1@g1 ~/src/guix [env]$ make -j 10 check
[...]
FAIL: tests/guix-register.sh
FAIL: tests/guix-build.sh
PASS: tests/packages.scm
PASS: tests/guix-graph.sh
FAIL: tests/store.scm
PASS: tests/guix-daemon.sh
PASS: tests/guix-system.sh
PASS: tests/guix-package-net.sh
PASS: tests/guix-environment.sh
FAIL: tests/guix-package.sh
PASS: tests/builders.scm
PASS: tests/guix-gc.sh
============================================================================
Testsuite summary for GNU Guix 0.13.0.4589-74bea6
============================================================================
# TOTAL: 745
# PASS:  731
# SKIP:  10
# XFAIL: 0
# FAIL:  4
# XPASS: 0
# ERROR: 0
============================================================================
[...]
g1@g1 ~/src/guix [env]$ git -C ~/.config/guix/latest log -n 1 --oneline
74bea6a03 (HEAD, origin/master, origin/HEAD) gnu: linux-libre: Update to 4.13.12.
g1@g1 ~/src/guix [env]$ git status
HEAD detached at origin/master
nothing to commit, working tree clean
g1@g1 ~/src/guix [env]$ git remote -vv
origin	git://git.savannah.gnu.org/guix.git (fetch)
origin	git://git.savannah.gnu.org/guix.git (push)
g1@g1 ~/src/guix [env]$ guix --version
guix (GNU Guix) 0.13.0.4589-74bea6
Copyright (C) 2017 the Guix authors
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
g1@g1 ~/src/guix [env]$ git describe
v0.13.0-4589-g74bea6a03