Update Ruby repo rev for eBPF-related commits

Update the revision of the Ruby repo.  It includes C-side changes for
exposing some tables and statistic information so that we can display
more information on the eBPF timeline.

Also fix formatting

mmtk/Cargo.toml

@@ -12,7 +12,7 @@ edition = "2021"
 # Metadata for the Ruby repository
 [package.metadata.ci-repos.ruby]
 repo = "mmtk/ruby" # This is used by actions/checkout, so the format is "owner/repo", not URL.
-rev = "0511ec851cd290fac520dbe5a862b409488e159e"
+rev = "9036b4e1a403fdcb8e6f171ee3376d7879351e80"
 
 [lib]
 name = "mmtk_ruby"

mmtk/src/weak_proc.rs

@@ -199,7 +199,13 @@ impl WeakProcessor {
         (crate::upcalls().cleanup_generic_iv_tbl)();
         let new_size = (upcalls().st_get_num_entries)(generic_iv_tbl);
         log::debug!("Cleaning up global ivtbl entries ({new_size} entries after).");
-        probe!(mmtk_ruby, update_generic_iv_tbl, items_moved, old_size, new_size);
+        probe!(
+            mmtk_ruby,
+            update_generic_iv_tbl,
+            items_moved,
+            old_size,
+            new_size
+        );
     }
 }
 
@@ -236,7 +242,7 @@ impl GCWork<Ruby> for ProcessObjFreeCandidates {
         }
 
         let new_cands = new_candidates.len();
-       *obj_free_candidates = new_candidates;
+        *obj_free_candidates = new_candidates;
         probe!(mmtk_ruby, process_obj_free_candidates, old_cands, new_cands);
     }
 }
@@ -462,7 +468,12 @@ impl GCWork<Ruby> for UpdateWbUnprotectedObjectsList {
         let new_size = objects.len();
         debug!("Retained {new_size} live WB-unprotected objects.");
 
-        probe!(mmtk_ruby, update_wb_unprotected_objects_list, old_size, new_size);
+        probe!(
+            mmtk_ruby,
+            update_wb_unprotected_objects_list,
+            old_size,
+            new_size
+        );
     }
 }