diff --git a/.travis.yml b/.travis.yml
index 515996b..6face7b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: rust
 rust:
   - stable
+
 before_script:
   - rustup component add rustfmt-preview
   - rustup component add clippy
@@ -8,4 +9,5 @@ script:
   # For speed up the CI process
   #   See: https://docs.travis-ci.com/user/build-stages/#Data-persistence-between-stages-and-jobs
   - .ci-script/clippy_test.sh
-  - cargo fmt -- --check && cargo test --all && cargo test --no-default-features --features openssl --all
+  - cargo fmt -- --check && cargo test --all
+  - cd cita-cli && cargo test --no-default-features --features openssl
diff --git a/cita-cli/Cargo.toml b/cita-cli/Cargo.toml
index 3b34f31..d7a6f79 100644
--- a/cita-cli/Cargo.toml
+++ b/cita-cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cita-cli"
-version = "0.19.7"
+version = "20.2.0"
 authors = ["piaoliu <441594700@qq.com>", "Qian Linfeng <thewawar@gmail.com>"]
 build = "build.rs"
 edition = "2018"
diff --git a/cita-cli/build.rs b/cita-cli/build.rs
index 08cabcf..0149362 100644
--- a/cita-cli/build.rs
+++ b/cita-cli/build.rs
@@ -32,7 +32,7 @@ pub fn get_commit_describe() -> Option<String> {
         .and_then(|r| {
             String::from_utf8(r.stdout).ok().map(|s| {
                 s.trim()
-                    .splitn(2, "-")
+                    .splitn(2, '-')
                     .collect::<Vec<&str>>()
                     .pop()
                     .unwrap_or_default()
diff --git a/cita-cli/src/interactive.rs b/cita-cli/src/interactive.rs
index 6d1e1c4..31fd5d5 100644
--- a/cita-cli/src/interactive.rs
+++ b/cita-cli/src/interactive.rs
@@ -95,7 +95,7 @@ pub fn start(url: &str, client: &Client) -> io::Result<()> {
         config.set_save_private(configs["save_private"].as_bool().unwrap_or(false));
     }
 
-    let mut env_file = cita_cli_dir.clone();
+    let mut env_file = cita_cli_dir;
     env_file.push("env_vars");
     if env_file.as_path().exists() {
         let file = fs::File::open(&env_file)?;
@@ -364,7 +364,7 @@ impl<'a, 'b> CitaCompleter<'a, 'b> {
                         .map(|aliases| {
                             aliases
                                 .iter()
-                                .map(|(alias, _)| (alias.to_string(), alias.to_string()))
+                                .map(|(alias, _)| ((*alias).to_string(), (*alias).to_string()))
                                 .collect::<Vec<(String, String)>>()
                         })
                         .unwrap_or_else(|| vec![]),
@@ -443,7 +443,6 @@ impl<'a, 'b> Completer for CitaCompleter<'a, 'b> {
 
         if word_lower.is_empty() {
             let pairs = tmp_pair
-                .clone()
                 .into_iter()
                 .map(|(display, replacement)| Pair {
                     display,
@@ -467,7 +466,6 @@ impl<'a, 'b> Completer for CitaCompleter<'a, 'b> {
                 .any(|ref mut x| x.replacement.to_lowercase().contains(&word_lower))
             {
                 let pairs = tmp_pair
-                    .clone()
                     .into_iter()
                     .filter(|(_, replacement)| replacement.to_lowercase().contains(&word_lower))
                     .map(|(display, replacement)| Pair {
diff --git a/cita-cli/src/main.rs b/cita-cli/src/main.rs
index 4667339..1e3d7ad 100644
--- a/cita-cli/src/main.rs
+++ b/cita-cli/src/main.rs
@@ -49,19 +49,19 @@ fn main() {
     let client = Client::new();
 
     if let Err(err) = match matches.subcommand() {
-        ("rpc", Some(m)) => rpc_processor(m, &printer, &mut config, client.clone()),
+        ("rpc", Some(m)) => rpc_processor(m, &printer, &mut config, client),
         ("ethabi", Some(m)) => abi_processor(m, &printer, &config),
         ("key", Some(m)) => key_processor(m, &printer, &config),
-        ("scm", Some(m)) => contract_processor(m, &printer, &mut config, client.clone()),
-        ("transfer", Some(m)) => transfer_processor(m, &printer, &mut config, client.clone()),
-        ("store", Some(m)) => store_processor(m, &printer, &mut config, client.clone()),
-        ("amend", Some(m)) => amend_processor(m, &printer, &mut config, client.clone()),
+        ("scm", Some(m)) => contract_processor(m, &printer, &mut config, client),
+        ("transfer", Some(m)) => transfer_processor(m, &printer, &mut config, client),
+        ("store", Some(m)) => store_processor(m, &printer, &mut config, client),
+        ("amend", Some(m)) => amend_processor(m, &printer, &mut config, client),
         ("search", Some(m)) => {
             search_processor(&parser, m);
             Ok(())
         }
-        ("tx", Some(m)) => tx_processor(m, &printer, &mut config, client.clone()),
-        ("benchmark", Some(m)) => benchmark_processor(m, &printer, &config, client.clone()),
+        ("tx", Some(m)) => tx_processor(m, &printer, &mut config, client),
+        ("benchmark", Some(m)) => benchmark_processor(m, &printer, &config, client),
         ("completions", Some(m)) => {
             completion_processor(&mut parser, m);
             Ok(())
@@ -73,7 +73,7 @@ fn main() {
             Ok(())
         }
     } {
-        printer.eprintln(&Rc::new(err.to_string()), true);
+        printer.eprintln(&Rc::new(err), true);
         process::exit(1);
     }
 }
diff --git a/tool-derive/src/lib.rs b/tool-derive/src/lib.rs
index 609a98a..02a3c68 100644
--- a/tool-derive/src/lib.rs
+++ b/tool-derive/src/lib.rs
@@ -56,7 +56,7 @@ pub fn contract(input: TokenStream) -> TokenStream {
     // parse str to LitStr
     let path = syn::LitStr::new(&path, proc_macro2::Span::call_site());
     // parse str to Ident
-    let trait_name = syn::Ident::new(&trait_name.to_string(), proc_macro2::Span::call_site());
+    let trait_name = syn::Ident::new(&trait_name, proc_macro2::Span::call_site());
     let address = syn::LitStr::new(&address, proc_macro2::Span::call_site());
 
     let output = if let syn::Data::Struct(data) = input.data {