gtest 1.14 included iomanip, gtest 1.15 does not anymore.
Upstream bug: https://github.com/ROCm/rccl/issues/1455
--- a/test/common/TestBed.cpp
+++ b/test/common/TestBed.cpp
@@ -4,6 +4,7 @@
  * See LICENSE.txt for license information
  ************************************************************************/
 #include <unistd.h>
+#include <iomanip>
 #include "TestBed.hpp"
 #include <rccl/rccl.h>