fix type

Signed-off-by: tison <[email protected]>

src/common/meta/src/kv_backend/chroot.rs

@@ -15,6 +15,7 @@
 use std::any::Any;
 use std::sync::Arc;
 
+use crate::error::Error;
 use crate::kv_backend::txn::{Txn, TxnOp, TxnOpResponse, TxnResponse};
 use crate::kv_backend::{KvBackend, KvBackendRef, TxnService};
 use crate::rpc::store::{
@@ -29,16 +30,16 @@ pub struct ChrootKvBackend<B> {
     inner: B,
 }
 
-impl<B: KvBackend> ChrootKvBackend<B> {
+impl<B: KvBackend<Error = Error> + 'static> ChrootKvBackend<B> {
     pub fn new<R>(root: Vec<u8>, inner: B) -> KvBackendRef {
         debug_assert!(!root.is_empty());
         Arc::new(ChrootKvBackend { root, inner })
     }
 }
 
 #[async_trait::async_trait]
-impl<B: KvBackend> TxnService for ChrootKvBackend<B> {
-    type Error = B::Error;
+impl<B: KvBackend<Error = Error>> TxnService for ChrootKvBackend<B> {
+    type Error = Error;
 
     async fn txn(&self, txn: Txn) -> Result<TxnResponse, Self::Error> {
         let txn = txn_prepend_root(&self.root, txn);
@@ -48,7 +49,7 @@ impl<B: KvBackend> TxnService for ChrootKvBackend<B> {
 }
 
 #[async_trait::async_trait]
-impl<B: KvBackend> KvBackend for ChrootKvBackend<B> {
+impl<B: KvBackend<Error = Error>> KvBackend for ChrootKvBackend<B> {
     fn name(&self) -> &str {
         self.inner.name()
     }