Fix build without sync feature

Author: Rexagon

src/cell/cell_impl/rc.rs

@@ -194,7 +194,7 @@ impl CellContext for EmptyCellContext {
     }
 }
 
-unsafe fn make_cell(ctx: CellParts, hashes: Vec<(HashBytes, u16)>) -> Cell {
+unsafe fn make_cell(ctx: CellParts, hashes: Box<[(HashBytes, u16)]>) -> Cell {
     unsafe {
         match ctx.descriptor.cell_type() {
             CellType::PrunedBranch => {
@@ -232,7 +232,6 @@ unsafe fn make_cell(ctx: CellParts, hashes: Vec<(HashBytes, u16)>) -> Cell {
                     hashes,
                     descriptor: ctx.descriptor,
                     references: ctx.references.into_inner(),
-                    without_first: false,
                 },
                 ctx.data,
             ),

src/cell/usage_tree.rs

@@ -257,10 +257,10 @@ mod rc {
                     Some(value) => value,
                     slot @ None => {
                         let child = self.cell.as_ref().reference_cloned(index)?;
-                        if self.mode == UsageTreeMode::OnLoad {
-                            if let Some(usage_tree) = self.usage_tree.upgrade() {
-                                usage_tree.insert(&child);
-                            }
+                        if self.mode == UsageTreeMode::OnLoad
+                            && let Some(usage_tree) = self.usage_tree.upgrade()
+                        {
+                            usage_tree.insert(&child);
                         }
 
                         slot.insert(Rc::new(UsageCell::new(