diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index a0849b1..fc5d99a 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -340,8 +340,6 @@ function system_requirements($phase) {
     $threshold_warning = $cron_config->get('threshold.requirements_warning');
     // Cron error threshold defaults to two weeks.
     $threshold_error = $cron_config->get('threshold.requirements_error');
-    // Cron configuration help text.
-    $help = t('For more information, see the online handbook entry for <a href="@cron-handbook">configuring cron jobs</a>.', array('@cron-handbook' => 'https://www.drupal.org/cron'));
 
     // Determine when cron last ran.
     $cron_last = \Drupal::state()->get('system.cron_last');
@@ -360,23 +358,39 @@ function system_requirements($phase) {
 
     // Set summary and description based on values determined above.
     $summary = t('Last run !time ago', array('!time' => \Drupal::service('date.formatter')->formatTimeDiffSince($cron_last)));
-    $description = '';
-    if ($severity != REQUIREMENT_INFO) {
-      $description = t('Cron has not run recently.') . ' ' . $help;
-    }
 
-    $description .= ' ' . t('You can <a href="@cron">run cron manually</a>.', array('@cron' => \Drupal::url('system.run_cron')));
-    $description .= '<br />' . t('To run cron from outside the site, go to <a href="!cron">!cron</a>', array('!cron' => \Drupal::url('system.cron', array('key' => \Drupal::state()->get('system.cron_key'), array('absolute' => TRUE)))));
+    // Get cron key.
+    $cron_key = \Drupal::state()->get('system.cron_key');
+
+    // Create inline Twig template.
+    $template = <<<'TWIG'
+      {%- set space = ' ' %}
+      {%- if run_warning %}
+        {%- trans %}Cron has not run recently.{% endtrans %}{{ space }}
+        {%- trans %}For more information, see the online handbook entry for <a href="{{ cron_handbook|passthrough }}">configuring cron jobs</a>.{% endtrans %}{{ space }}
+      {%- endif %}
+      {%- trans %}You can <a href="{{ cron_inside|passthrough }}">run cron manually</a>.{% endtrans %}{{ space }}
+      {%- trans %}To run cron from outside the site, go to <a href="{{ cron_outside|passthrough }}">{{ cron_outside|passthrough }}</a>.{% endtrans %}
+TWIG;
+
+    // Create cron description.
+    $description = array(
+      '#type' => 'inline_template',
+      '#template' => $template,
+      '#context' => array(
+        'run_warning' => $severity != REQUIREMENT_INFO,
+        'cron_handbook' => 'https://www.drupal.org/cron',
+        'cron_inside' => \Drupal::url('system.run_cron'),
+        'cron_outside' => \Drupal::url('system.cron', array('key' => $cron_key), array('absolute' => TRUE)),
+      ),
+    );
 
+    // Set cron requirements.
     $requirements['cron'] = array(
       'title' => t('Cron maintenance tasks'),
       'severity' => $severity,
       'value' => $summary,
-      // @todo This string is concatenated from t() calls, safe drupal_render()
-      //   output, whitespace, and <br /> tags, so is safe. However, as a best
-      //   practice, we should not use SafeMarkup::set() around a variable. Fix
-      //   in: https://www.drupal.org/node/2296929.
-      'description' => SafeMarkup::set($description),
+      'description' => $description,
     );
   }
   if ($phase != 'install') {