fix: preserve workunit log level in local cache metadata update

docs/notes/2.32.x.md

@@ -27,6 +27,8 @@ a specific field inside a TOML/YAML/JSON file, using the `@path/to/file:trail.wi
 
 The "spinner line" indicator now displays work unit times to one decimal place instead of two, and should look smoother.
 
+Fixed "Scheduling:" workunits (process execution wrappers) being logged at INFO instead of DEBUG, which caused duplicate log lines like `Completed: Scheduling: Generate lockfile for pytest` alongside the actual `Completed: Generate lockfile for pytest`.
+
 #### Internal Python Upgrade
 
 The version of Python used by Pants itself has been updated to [3.14](https://docs.python.org/3/whatsnew/3.14.html). To support this, the [Pants Launcher Binary](https://www.pantsbuild.org/blog/2023/02/23/the-pants-launcher-binary-a-much-simpler-way-to-install-and-run-pants) (also known as [`scie-pants`](https://github.com/pantsbuild/scie-pants/)) now has a minimum version of `0.13.0`. To update to the latest launcher binary, either:

src/rust/process_execution/src/cache.rs

@@ -94,14 +94,14 @@ impl crate::CommandRunner for CommandRunner {
         };
 
         workunit.update_metadata(|initial| {
-            initial.map(|(initial, _)| {
+            initial.map(|(initial, level)| {
                 (
                     WorkunitMetadata {
                         local_command: Some(command_digest),
                         local_action: Some(action_digest),
                         ..initial
                     },
-                    Level::Info,
+                    level,
                 )
             })
         });