Upgrade rust/crates/crossbeam-deque to 0.8.1

Test: make
Change-Id: I59c3722da19125530542def111cb6bb457653635
diff --git a/METADATA b/METADATA
index 1ad1506..7410e60 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/crossbeam-deque/crossbeam-deque-0.8.0.crate"
+    value: "https://static.crates.io/crates/crossbeam-deque/crossbeam-deque-0.8.1.crate"
   }
-  version: "0.8.0"
+  version: "0.8.1"
   license_type: NOTICE
   last_upgrade_date {
-    year: 2020
-    month: 12
-    day: 21
+    year: 2021
+    month: 8
+    day: 9
   }
 }