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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<tr><td><span title='2019-05-13 23:46:08 +0200'>2019-05-13</span></td><td><a href='/guix/commit/gnu/installer/aux-files?id=76269f6bc4200ef79aa80a8a6160ae269c2a36c9'>installer: Use 'glibc-supported-locales'.</a><span class='msg-avail'>...<span class='msg-tooltip'>The list of locales supported by glibc is now built from source.

* gnu/installer/locale.scm (locale-string-&gt;locale): Add optional
'codeset' parameter and honor it.
(supported-locales-&gt;locales): Rewrite to 'read' from SUPPORTED-LOCALES.
* gnu/installer.scm (compute-locale-step): Pass the result of
'glibc-supported-locales' instead of the "aux-files/SUPPORTED" file.
* gnu/installer/aux-files/SUPPORTED: Remove.
* gnu/local.mk (dist_installer_DATA): Remove it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-01-17 14:04:20 +0100'>2019-01-17</span></td><td><a href='/guix/commit/gnu/installer/aux-files?id=d0f3a672dcbdfefd3556b6a21985ff0e35eed3be'>gnu: Add graphical installer support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* configure.ac: Require that guile-newt is available.
* gnu/installer.scm: New file.
* gnu/installer/aux-files/logo.txt: New file.
* gnu/installer/build-installer.scm: New file.
* gnu/installer/connman.scm: New file.
* gnu/installer/keymap.scm: New file.
* gnu/installer/locale.scm: New file.
* gnu/installer/newt.scm: New file.
* gnu/installer/newt/ethernet.scm: New file.
* gnu/installer/newt/hostname.scm: New file.
* gnu/installer/newt/keymap.scm: New file.
* gnu/installer/newt/locale.scm: New file.
* gnu/installer/newt/menu.scm: New file.
* gnu/installer/newt/network.scm: New file.
* gnu/installer/newt/page.scm: New file.
* gnu/installer/newt/timezone.scm: New file.
* gnu/installer/newt/user.scm: New file.
* gnu/installer/newt/utils.scm: New file.
* gnu/installer/newt/welcome.scm: New file.
* gnu/installer/newt/wifi.scm: New file.
* gnu/installer/steps.scm: New file.
* gnu/installer/timezone.scm: New file.
* gnu/installer/utils.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add previous files.
* gnu/system.scm: Export %root-account.
* gnu/system/install.scm (%installation-services): Use kmscon instead of linux
VT for all tty.
(installation-os)[users]: Add the graphical installer as shell of the root
account.
[packages]: Add font related packages.
* po/guix/POTFILES.in: Add installer files.
</span></span></td><td>Mathieu Othacehe</td></tr>