use static cell instead of custom struct

satrs/src/pool.rs

@@ -1594,7 +1594,9 @@ mod tests {
 
         static SUBPOOL_1: static_cell::ConstStaticCell<
             [u8; SUBPOOL_1_NUM_ELEMENTS as usize * SUBPOOL_1_BLOCK_SIZE],
-        > = static_cell::ConstStaticCell::new([0; SUBPOOL_1_NUM_ELEMENTS as usize * SUBPOOL_1_BLOCK_SIZE]);
+        > = static_cell::ConstStaticCell::new(
+            [0; SUBPOOL_1_NUM_ELEMENTS as usize * SUBPOOL_1_BLOCK_SIZE],
+        );
 
         static SUBPOOL_1_SIZES: Mutex<UnsafeCell<[usize; SUBPOOL_1_NUM_ELEMENTS as usize]>> =
             Mutex::new(UnsafeCell::new(
@@ -1605,9 +1607,12 @@ mod tests {
         const SUBPOOL_2_BLOCK_SIZE: usize = 8;
         static SUBPOOL_2: static_cell::ConstStaticCell<
             [u8; SUBPOOL_2_NUM_ELEMENTS as usize * SUBPOOL_2_BLOCK_SIZE],
-        > = static_cell::ConstStaticCell::new([0; SUBPOOL_2_NUM_ELEMENTS as usize * SUBPOOL_2_BLOCK_SIZE]);
-        static SUBPOOL_2_SIZES: static_cell::ConstStaticCell<[usize; SUBPOOL_2_NUM_ELEMENTS as usize]> =
-            static_cell::ConstStaticCell::new([STORE_FREE; SUBPOOL_2_NUM_ELEMENTS as usize]);
+        > = static_cell::ConstStaticCell::new(
+            [0; SUBPOOL_2_NUM_ELEMENTS as usize * SUBPOOL_2_BLOCK_SIZE],
+        );
+        static SUBPOOL_2_SIZES: static_cell::ConstStaticCell<
+            [usize; SUBPOOL_2_NUM_ELEMENTS as usize],
+        > = static_cell::ConstStaticCell::new([STORE_FREE; SUBPOOL_2_NUM_ELEMENTS as usize]);
 
         const SUBPOOL_3_NUM_ELEMENTS: u16 = 1;
         const SUBPOOL_3_BLOCK_SIZE: usize = 16;