Hi,

On current master (35691bf5dc69e4d482b31fab63e3bd73ffece755, and "some
time" earlier), updating guix (see attached patch) and running

--8<---------------cut here---------------start------------->8---
./pre-inst-env guix build guix --keep-failed --verbosity=1
--8<---------------cut here---------------end--------------->8---

fails like so

--8<---------------cut here---------------start------------->8---
PASS: tests/gexp.scm
SKIP: tests/git.scm
make[4]: *** [Makefile:5274: tests/git-authenticate.log] Error 1
make[4]: Leaving directory '/tmp/guix-build-guix-1.1.0-13.35691bf.drv-0/source'
make[3]: *** [Makefile:5256: check-TESTS] Error 2
make[3]: Leaving directory '/tmp/guix-build-guix-1.1.0-13.35691bf.drv-0/source'
make[2]: *** [Makefile:5505: check-am] Error 2
make[2]: Leaving directory '/tmp/guix-build-guix-1.1.0-13.35691bf.drv-0/source'
make[1]: *** [Makefile:5033: check-recursive] Error 1
make[1]: Leaving directory '/tmp/guix-build-guix-1.1.0-13.35691bf.drv-0/source'
make: *** [Makefile:5507: check] Error 2

Test suite failed, dumping logs.
command "make" "check" failed with status 2
--8<---------------cut here---------------end--------------->8---

Contents of /tmp/guix-build-guix-1.1.0-13.35691bf.drv-0/source/tests/git-authenticate.log:

--8<---------------cut here---------------start------------->8---
Backtrace:
           2 (primitive-load-path "tests/git-authenticate.scm")
In ice-9/eval.scm:
    259:9  1 (_ #f)
In unknown file:
           0 (search-path ("/tmp/guix-build-guix-1.1.0-13.35691b…" …) …)

ERROR: In procedure search-path:
Wrong type (expecting string): #f
test-name: unsigned commits
location: /tmp/guix-build-guix-1.1.0-13.35691bf.drv-0/source/tests/git-authenticate.scm:43
source:
+ (test-assert
+   "unsigned commits"
+   (with-temporary-git-repository
+     directory
+     '((add "a.txt" "A")
+       (commit "first commit")
+       (add "b.txt" "B")
+       (commit "second commit"))
+     (with-repository
+       directory
+       repository
+       (let ((commit1 (find-commit repository "first"))
+             (commit2 (find-commit repository "second")))
+         (guard (c ((unsigned-commit-error? c)
+                    (oid=? (git-authentication-error-commit c)
+                           (commit-id commit1))))
+                (authenticate-commits
+                  repository
+                  (list commit1 commit2)
+                  #:keyring-reference
+                  "master")
+                'failed)))))
result: SKIP
--8<---------------cut here---------------end--------------->8---

Greetings,
Janneke