diff --git a/crates/ast_node/src/spanned.rs b/crates/ast_node/src/spanned.rs
index 2cf4fc1427ec..ceaeb03a2fbf 100644
--- a/crates/ast_node/src/spanned.rs
+++ b/crates/ast_node/src/spanned.rs
@@ -5,7 +5,7 @@ use pmutil::{smart_quote, Quote, ToTokensExt};
 use swc_macros_common::prelude::*;
 use syn::*;
 
-#[derive(Debug, FromField)]
+#[derive(FromField)]
 #[darling(attributes(span))]
 struct MyField {
     /// Name of the field.
diff --git a/crates/swc_ecma_ast/build.rs b/crates/swc_ecma_ast/build.rs
deleted file mode 100644
index 17fe53a27deb..000000000000
--- a/crates/swc_ecma_ast/build.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-#[cfg(all(feature = "rkyv-impl", feature = "rkyv-bytecheck-impl"))]
-compile_error!("Cannot enable bytechcked, non-bytechecked rkyv both");
-
-fn main() {}
diff --git a/crates/swc_ecma_ast/src/lib.rs b/crates/swc_ecma_ast/src/lib.rs
index fac5554a4e2a..7ed9b0c0a1d4 100644
--- a/crates/swc_ecma_ast/src/lib.rs
+++ b/crates/swc_ecma_ast/src/lib.rs
@@ -9,7 +9,8 @@
 #![allow(clippy::clone_on_copy)]
 #![recursion_limit = "1024"]
 
-// #![deny(variant_size_differences)]
+#[cfg(all(feature = "rkyv-impl", feature = "rkyv-bytecheck-impl"))]
+compile_error!("Cannot enable bytechcked, non-bytechecked rkyv both");
 
 use serde::{Deserialize, Serialize};
 use swc_common::{ast_node, EqIgnoreSpan, Span};
diff --git a/crates/swc_plugin_proxy/build.rs b/crates/swc_plugin_proxy/build.rs
deleted file mode 100644
index 17fe53a27deb..000000000000
--- a/crates/swc_plugin_proxy/build.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-#[cfg(all(feature = "rkyv-impl", feature = "rkyv-bytecheck-impl"))]
-compile_error!("Cannot enable bytechcked, non-bytechecked rkyv both");
-
-fn main() {}
diff --git a/crates/swc_plugin_proxy/src/lib.rs b/crates/swc_plugin_proxy/src/lib.rs
index c37bf5289a6e..69b7d16bc6fb 100644
--- a/crates/swc_plugin_proxy/src/lib.rs
+++ b/crates/swc_plugin_proxy/src/lib.rs
@@ -1,5 +1,8 @@
 #![cfg_attr(not(feature = "__rkyv"), allow(warnings))]
 
+#[cfg(all(feature = "rkyv-impl", feature = "rkyv-bytecheck-impl"))]
+compile_error!("Cannot enable bytechcked, non-bytechecked rkyv both");
+
 mod comments;
 mod memory_interop;
 mod metadata;