BUG#39011 mtr reports test failure without any message or log - part 1

mysql-test/mysql-test-run.pl

@@ -3508,13 +3508,22 @@ sub report_failure_and_restart ($) {
   if ( !defined $tinfo->{logfile} )
   {
     my $logfile= $path_current_testlog;
-    if ( defined $logfile and -f $logfile )
+    if ( defined $logfile )
+    {
+      if ( -f $logfile )
       {
 	# Test failure was detected by test tool and its report
 	# about what failed has been saved to file. Save the report
 	# in tinfo
 	$tinfo->{logfile}= mtr_fromfile($logfile);
       }
+      else
+      {
+	# The test tool report didn't exist, display an
+	# error message
+	$tinfo->{logfile}= "Could not open test tool report '$logfile'";
+      }
+    }
   }
 
   after_failure($tinfo);