diff --git a/.automation/test/rust_2021/rust_bad_1.rs b/.automation/test/rust_2021/rust_bad_1.rs
new file mode 100644
index 00000000..9a3e93bd
--- /dev/null
+++ b/.automation/test/rust_2021/rust_bad_1.rs
@@ -0,0 +1,7 @@
+// rustfmt-struct_field_align_threshold: 50
+fn func() {
+    Ok(ServerInformation { name:         unwrap_message_string(items.get(0)),
+           vendor: unwrap_message_string(items.get(1)),
+           version: unwrap_message_string(items.get(2)),
+           spec_version: unwrap_message_string(items.get(3)), });
+}
diff --git a/.automation/test/rust_2021/rust_good_1.rs b/.automation/test/rust_2021/rust_good_1.rs
new file mode 100644
index 00000000..e1d5d6a9
--- /dev/null
+++ b/.automation/test/rust_2021/rust_good_1.rs
@@ -0,0 +1,8 @@
+fn func() {
+    Ok(ServerInformation {
+        name: unwrap_message_string(items.get(0)),
+        vendor: unwrap_message_string(items.get(1)),
+        version: unwrap_message_string(items.get(2)),
+        spec_version: unwrap_message_string(items.get(3)),
+    });
+}
diff --git a/lib/functions/buildFileList.sh b/lib/functions/buildFileList.sh
index c558bafd..de709758 100755
--- a/lib/functions/buildFileList.sh
+++ b/lib/functions/buildFileList.sh
@@ -677,6 +677,7 @@ function BuildFileList() {
       ################################
       FILE_ARRAY_RUST_2015+=("${FILE}")
       FILE_ARRAY_RUST_2018+=("${FILE}")
+      FILE_ARRAY_RUST_2021+=("${FILE}")
 
     #######################
     # Get the RUST crates #