diff -r ff6d4b48f23b -r d7035cfa1f14 src/Pure/System/isabelle_system.scala
--- a/src/Pure/System/isabelle_system.scala	Sun May 29 11:45:32 2022 +0200
+++ b/src/Pure/System/isabelle_system.scala	Sun May 29 13:06:30 2022 +0200
@@ -430,7 +430,7 @@
   ): Process_Result = {
     val script =
       "rsync --protect-args --archive" +
-        (if (verbose) " --verbose" else "") +
+        (if (verbose || dry_run) " --verbose" else "") +
         (if (dry_run) " --dry-run" else "") +
         (if (clean) " --delete-excluded" else "") +
         (if (args.nonEmpty) " " + Bash.strings(args) else "")