Index: contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
===================================================================
--- contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ contrib/llvm/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -2195,8 +2195,8 @@
                       ", \"total_time_nsec\" : %12" PRIu64
                       ", \"standard_deviation_nsec\" : %9" PRIu64 " }",
                       result_idx > 0 ? "," : "", send_size, recv_size,
-                      duration_cast<nanoseconds>(total_time).count(),
-                      duration_cast<nanoseconds>(standard_deviation).count());
+                      (unsigned long)duration_cast<nanoseconds>(total_time).count(),
+                      (unsigned long)duration_cast<nanoseconds>(standard_deviation).count());
           ++result_idx;
         } else {
           strm.Printf(
@@ -2253,7 +2253,7 @@
                       ", \"recv_size\" : %6" PRIu32
                       ", \"total_time_nsec\" : %12" PRIu64 " }",
                       result_idx > 0 ? "," : "", send_size, recv_size,
-                      duration_cast<nanoseconds>(total_time).count());
+                      (unsigned long)duration_cast<nanoseconds>(total_time).count());
           ++result_idx;
         } else {
           strm.Printf("qSpeedTest(send=%-7u, recv=%-7u) %6u packets needed to "