Version 3.5.11 added a test to check that the default trust store is readable.
It does not exist in the build environment, so pretend everything is fine.

diff a/tests/trust-store.c b/tests/trust-store.c
--- a/tests/trust-store.c
+++ b/tests/trust-store.c
@@ -61,7 +61,7 @@
 	} else if (ret < 0) {
 		fail("error loading system trust store: %s\n", gnutls_strerror(ret));
 	} else if (ret == 0) {
-		fail("no certificates were found in system trust store!\n");
+		success("no trust store in the Guix build environment!\n");
 	}
 
 	gnutls_certificate_free_credentials(x509_cred);
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<div class='path'>path: <a href='/guix/log/?id=87ce159bc1db935df0f9839c58e505c4a210688c'>root</a>/<a href='/guix/log/etc?id=87ce159bc1db935df0f9839c58e505c4a210688c'>etc</a>/<a href='/guix/log/etc/guix-publish.conf.in?id=87ce159bc1db935df0f9839c58e505c4a210688c'>guix-publish.conf.in</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/etc/guix-publish.conf.in?id=87ce159bc1db935df0f9839c58e505c4a210688c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
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<tr><td><span title='2020-12-09 12:55:02 +0200'>2020-12-09</span></td><td><a href='/guix/commit/gnu/services/science.scm?id=533935ccf71bef93f2f146fba1b2bb6402559965'>services: science.scm: Add missing copyright headers.</a><span class='msg-avail'>...<span class='msg-tooltip'>This module was always supposed to have the GPL3 header in place.
Follow-up to 8f19e63f760fe02f9969225da2f3f3c36801218f.

* gnu/services/science.scm: Add Copyright headers.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-06-28 14:03:03 +0300'>2020-06-28</span></td><td><a href='/guix/commit/gnu/services/science.scm?id=8f19e63f760fe02f9969225da2f3f3c36801218f'>services: Add rshiny service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/science.scm: New file.
(&lt;rshiny-configuration&gt;): New record.
(rshiny-shepherd-service-type): New variable.
* doc/guix.texi (Miscellaneous Services): Document it.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
</span></span></td><td>Efraim Flashner</td></tr>