Resolve nightly-2021-10-05 clippy complaints

cli/src/main.rs

@@ -149,7 +149,7 @@ fn parse_settings(matches: &ArgMatches<'_>) -> Result<bool, Box<dyn error::Error
 
 pub fn parse_args<'a>(
     matches: &ArgMatches<'_>,
-    mut wallet_manager: &mut Option<Arc<RemoteWalletManager>>,
+    wallet_manager: &mut Option<Arc<RemoteWalletManager>>,
 ) -> Result<(CliConfig<'a>, CliSigners), Box<dyn error::Error>> {
     let config = if let Some(config_file) = matches.value_of("config_file") {
         Config::load(config_file).unwrap_or_default()
@@ -186,11 +186,11 @@ pub fn parse_args<'a>(
     let CliCommandInfo {
         command,
         mut signers,
-    } = parse_command(matches, &default_signer, &mut wallet_manager)?;
+    } = parse_command(matches, &default_signer, wallet_manager)?;
 
     if signers.is_empty() {
         if let Ok(signer_info) =
-            default_signer.generate_unique_signers(vec![None], matches, &mut wallet_manager)
+            default_signer.generate_unique_signers(vec![None], matches, wallet_manager)
         {
             signers.extend(signer_info.signers);
         }

cli/src/nonce.rs

@@ -510,6 +510,7 @@ pub fn process_get_nonce(
     config: &CliConfig,
     nonce_account_pubkey: &Pubkey,
 ) -> ProcessResult {
+    #[allow(clippy::redundant_closure)]
     match get_account_with_commitment(rpc_client, nonce_account_pubkey, config.commitment)
         .and_then(|ref a| state_from_account(a))?
     {

cli/tests/nonce.rs

@@ -215,6 +215,7 @@ fn full_battery_tests(
 }
 
 #[test]
+#[allow(clippy::redundant_closure)]
 fn test_create_account_with_seed() {
     solana_logger::setup();
     let mint_keypair = Keypair::new();

cli/tests/stake.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::redundant_closure)]
 use solana_cli::{
     cli::{process_command, request_and_confirm_airdrop, CliCommand, CliConfig},
     spend_utils::SpendAmount,

cli/tests/transfer.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::redundant_closure)]
 use solana_cli::{
     cli::{process_command, request_and_confirm_airdrop, CliCommand, CliConfig},
     spend_utils::SpendAmount,