fix: compile error of ci

Cargo.toml

@@ -88,7 +88,7 @@ hot = ["bp-std/signers", "bip39", "rand", "aes-gcm", "rpassword"]
 cli = ["base64", "env_logger", "clap", "shellexpand", "fs", "serde", "electrum", "esplora", "mempool", "log", "colored"]
 log = ["env_logger"]
 electrum = ["bp-electrum", "serde", "serde_json"]
-esplora = ["bp-esplora"]
-mempool = ["esplora"]
+esplora = ["bp-esplora", "serde", "serde_json"]
+mempool = ["esplora", "serde", "serde_json"]
 fs = ["serde"]
 serde = ["serde_crate", "serde_yaml", "toml", "bp-std/serde"]

src/indexers/cache.rs

@@ -19,11 +19,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#[cfg(feature = "electrum")]
 use std::collections::HashMap;
 use std::num::NonZeroUsize;
 use std::sync::{Arc, Mutex};
 
-use bpstd::{BlockHash, DerivedAddr, Tx, Txid};
+#[cfg(feature = "electrum")]
+use bpstd::Txid;
+use bpstd::{BlockHash, DerivedAddr, Tx};
 #[cfg(feature = "electrum")]
 use electrum::GetHistoryRes;
 use lru::LruCache;