diff --git a/.gitignore b/.gitignore
index 210bf24..8bbb10c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ composer.lock
 phpunit.xml
 vendor
 .php_cs.cache
+.phpunit.result.cache
 coverage
diff --git a/lib/Rfc1035StubResolver.php b/lib/Rfc1035StubResolver.php
index 24fcbba..a3d15be 100644
--- a/lib/Rfc1035StubResolver.php
+++ b/lib/Rfc1035StubResolver.php
@@ -187,7 +187,11 @@ final class Rfc1035StubResolver implements Resolver
                                     throw $reason;
                                 }
 
-                                if ($searchIndex < \count($searchList) - 1 && \in_array($reason->getCode(), [2, 3], true)) {
+                                if ($searchIndex < \count($searchList) - 1 && \in_array(
+                                    $reason->getCode(),
+                                    [2, 3],
+                                    true
+                                )) {
                                     continue 2;
                                 }
 
@@ -246,15 +250,19 @@ final class Rfc1035StubResolver implements Resolver
             } catch (ConfigException $e) {
                 $this->configStatus = self::CONFIG_FAILED;
 
+                $message = "Could not load the system's DNS configuration; "
+                    . "falling back to synchronous, blocking resolver; "
+                    . \get_class($e) . ": " . $e->getMessage();
+
                 try {
                     \trigger_error(
-                        "Could not load the system's DNS configuration, using synchronous, blocking fallback",
+                        $message,
                         \E_USER_WARNING
                     );
                 } catch (\Throwable $triggerException) {
                     \set_error_handler(null);
                     \trigger_error(
-                        "Could not load the system's DNS configuration, using synchronous, blocking fallback",
+                        $message,
                         \E_USER_WARNING
                     );
                     \restore_error_handler();