diff --git a/Cassandane/Instance.pm b/Cassandane/Instance.pm
index 6c6daf7..91f1ca2 100644
--- a/Cassandane/Instance.pm
+++ b/Cassandane/Instance.pm
@@ -274,6 +274,7 @@ sub _make_unique_instance_info
	die "Invalid TEST_UNIT_WORKER_ID - code not run in Worker context"
		if (defined($workerid) && $workerid eq 'invalid');
	$stamp .= chr(64 + $workerid) if defined $workerid;
+       xlog "workerid: $workerid, stamp: $stamp"
     }
 
     my $rootdir = _rootdir();
@@ -285,6 +286,7 @@ sub _make_unique_instance_info
	$name = $stamp . $next_unique;
	$next_unique++;
	$basedir = "$rootdir/$name";
+       xlog "name: $name, basedir: $basedir";
	last if mkdir($basedir);
	die "Cannot create $basedir: $!" if ($! != EEXIST);
     }