This patch from resolution of https://sourceforge.net/p/mhash/bugs/37/

--- a/src/keygen_test.c
+++ b/src/keygen_test.c
@@ -121,8 +121,6 @@
 	
 	mhash_keygen_ext(KEYGEN_S2K_SALTED, data, key, keysize, password, passlen);
 
-	mutils_memset(tmp, 0, keysize * 2);
-
 	tmp = mutils_asciify(key, keysize);
 
 	result = mutils_strcmp((mutils_word8 *) KEY2, tmp);
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<tr><td><span title='2020-12-06 21:55:18 +0100'>2020-12-06</span></td><td><a href='/guix/commit/gnu/build/linux-container.scm?id=329fa5bdbb621dae586cbfb062cbd3b295880ba5'>Revert "linux-container: Correct test for unprivileged user namespace support."</a><span class='msg-avail'>...<span class='msg-tooltip'>This broke 'guix environment --container' on non-Debian distributions.
Fixes &lt;https://bugs.gnu.org/45066&gt;.  Reported by luhux &lt;luhux@outlook.com&gt;.

This reverts commit 8bc5ca5160db3d82bd5b6b2b7ed80c96f42bd33e.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-12-03 16:25:45 +0000'>2020-12-03</span></td><td><a href='/guix/commit/gnu/build/linux-container.scm?id=8bc5ca5160db3d82bd5b6b2b7ed80c96f42bd33e'>linux-container: Correct test for unprivileged user namespace support.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/31977&gt;.
Reported by Paul Garlick &lt;pgarlick@tourbillion-technology.com&gt;.

* gnu/build/linux-container.scm (unprivileged-user-namespace-supported?):
Return #f when the 'userns-file' does not exist.
</span></span></td><td>Paul Garlick</td></tr>
<tr><td><span title='2020-10-01 12:51:13 +0200'>2020-10-01</span></td><td><a href='/guix/commit/gnu/build/linux-container.scm?id=e74818353882f187e5971b5a3a481f17df883dbe'>linux-container: Reset jailed root permissions.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/build/linux-container.scm (mount-file-systems): Add 'chmod' call.
* tests/containers.scm
("call-with-container, mnt namespace, root permissions"): New test.
</span></span></td><td>Jelle Licht</td></tr>
<tr><td><span title='2020-09-10 09:38:52 +0200'>2020-09-10</span></td><td><a href='/guix/commit/gnu/build/linux-container.scm?id=b3a83f1ece4b6c8bfcc2a9875df51142c0e39904'>build: linux-container: Fix run-container.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a follow-up of 5316dfc0f125b658e4a2acf7f00f49501663d943. Some users of
run-container may expect that the container is jailed, even if there are no
mounts. This is the case for some Guix tests.

* gnu/build/linux-container.scm (run-container): Do not jail the container
when the requested root is "/".
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-09-02 17:05:23 +0200'>2020-09-02</span></td><td><a href='/guix/commit/gnu/build/linux-container.scm?id=5316dfc0f125b658e4a2acf7f00f49501663d943'>linux-container: Do not jail the container unconditionally.</a><span class='msg-avail'>...<span class='msg-tooltip'>We may want to run a container inside the MNT namespace, without jailing the
container. If RUN-CONTAINER is passed a null MOUNTS list, do not jail the
container.

* gnu/build/linux-container.scm (run-container): Do not call
MOUNT-FILE-SYSTEMS if MOUNTS list is empty.
</span></span></td><td>Mathieu Othacehe</td></tr>