diff --git a/subxt/examples/rpc_legacy.rs b/subxt/examples/rpc_legacy.rs
index 25bde6d1e3..69b0772b6f 100644
--- a/subxt/examples/rpc_legacy.rs
+++ b/subxt/examples/rpc_legacy.rs
@@ -40,7 +40,10 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
             .await?;
         let current_header = rpc.chain_get_header(None).await?.unwrap();
 
-        let ext_params = Params::new().mortal(&current_header, 8).nonce(current_nonce).build();
+        let ext_params = Params::new()
+            .mortal(&current_header, 8)
+            .nonce(current_nonce)
+            .build();
 
         let balance_transfer = polkadot::tx()
             .balances()
@@ -48,7 +51,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
         let ext_hash = api
             .tx()
-            .create_signed(&balance_transfer, &alice, ext_params).await?
+            .create_signed(&balance_transfer, &alice, ext_params)
+            .await?
             .submit()
             .await?;
 
diff --git a/subxt/examples/setup_config_custom.rs b/subxt/examples/setup_config_custom.rs
index fee6b01cd4..b29414e06e 100644
--- a/subxt/examples/setup_config_custom.rs
+++ b/subxt/examples/setup_config_custom.rs
@@ -1,7 +1,9 @@
 #![allow(missing_docs)]
 use codec::Encode;
-use subxt::client::OfflineClientT;
-use subxt::config::{Config, ExtrinsicParams, ExtrinsicParamsEncoder, ExtrinsicParamsError, BaseParams, FromBaseParams};
+use subxt::config::{
+    BaseParams, Config, ExtrinsicParams, ExtrinsicParamsEncoder, ExtrinsicParamsError,
+    FromBaseParams,
+};
 use subxt_signer::sr25519::dev;
 
 #[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_full.scale")]
@@ -51,8 +53,8 @@ impl CustomExtrinsicParamsBuilder {
     }
 }
 
-impl<T: Config> FromBaseParams<T> for CustomExtrinsicParamsBuilder{
-    fn from_base_params(params: &BaseParams<T>) -> Self {
+impl<T: Config> FromBaseParams<T> for CustomExtrinsicParamsBuilder {
+    fn from_base_params(_params: &BaseParams<T>) -> Self {
         Default::default()
     }
 }
diff --git a/subxt/examples/setup_config_signed_extension.rs b/subxt/examples/setup_config_signed_extension.rs
index df77323cee..9012eb67f8 100644
--- a/subxt/examples/setup_config_signed_extension.rs
+++ b/subxt/examples/setup_config_signed_extension.rs
@@ -2,11 +2,10 @@
 use codec::Encode;
 use scale_encode::EncodeAsType;
 use scale_info::PortableRegistry;
-use subxt::client::OfflineClientT;
 use subxt::config::signed_extensions;
 use subxt::config::{
-    Config, DefaultExtrinsicParamsBuilder, ExtrinsicParams, ExtrinsicParamsEncoder,
-    ExtrinsicParamsError, BaseParams
+    BaseParams, Config, DefaultExtrinsicParamsBuilder, ExtrinsicParams, ExtrinsicParamsEncoder,
+    ExtrinsicParamsError,
 };
 use subxt_signer::sr25519::dev;
 
@@ -60,7 +59,10 @@ impl<T: Config> signed_extensions::SignedExtension<T> for CustomSignedExtension
 impl<T: Config> ExtrinsicParams<T> for CustomSignedExtension {
     type Params = ();
 
-    fn new( base_params: &BaseParams<T>, _params: Self::Params) -> Result<Self, ExtrinsicParamsError> {
+    fn new(
+        _base_params: &BaseParams<T>,
+        _params: Self::Params,
+    ) -> Result<Self, ExtrinsicParamsError> {
         Ok(CustomSignedExtension)
     }
 }
diff --git a/subxt/src/config/default_extrinsic_params.rs b/subxt/src/config/default_extrinsic_params.rs
index c39f1f2c6f..c0ff3dfc68 100644
--- a/subxt/src/config/default_extrinsic_params.rs
+++ b/subxt/src/config/default_extrinsic_params.rs
@@ -103,8 +103,8 @@ impl<T: Config> DefaultExtrinsicParamsBuilder<T> {
         self
     }
 
-     /// Provide a specific nonce for the submitter of the extrinsic
-     pub fn nonce(mut self, nonce: u64) -> Self {
+    /// Provide a specific nonce for the submitter of the extrinsic
+    pub fn nonce(mut self, nonce: u64) -> Self {
         self.nonce = Some(nonce);
         self
     }
diff --git a/subxt/src/config/signed_extensions.rs b/subxt/src/config/signed_extensions.rs
index a170e3d88b..f38efab3ac 100644
--- a/subxt/src/config/signed_extensions.rs
+++ b/subxt/src/config/signed_extensions.rs
@@ -11,7 +11,7 @@ use super::extrinsic_params::{ExtrinsicParams, ExtrinsicParamsEncoder, Extrinsic
 use super::{BaseParams, FromBaseParams};
 use crate::config::Header;
 use crate::utils::Era;
-use crate::{client::OfflineClientT, Config};
+use crate::Config;
 use codec::{Compact, Encode};
 use core::fmt::Debug;
 use derivative::Derivative;
@@ -43,7 +43,7 @@ impl<T: Config> ExtrinsicParams<T> for CheckSpecVersion {
 
     fn new(
         base_params: &BaseParams<T>,
-        params: Self::Params,
+        _params: Self::Params,
     ) -> Result<Self, ExtrinsicParamsError> {
         Ok(CheckSpecVersion(
             base_params.client.runtime_version().spec_version,
@@ -74,7 +74,7 @@ impl<T: Config> ExtrinsicParams<T> for CheckNonce {
         base_params: &BaseParams<T>,
         params: Self::Params,
     ) -> Result<Self, ExtrinsicParamsError> {
-        let nonce = params.0.unwrap_or_else(|| base_params.nonce);
+        let nonce = params.0.unwrap_or(base_params.nonce);
         Ok(CheckNonce(Compact(nonce)))
     }
 }
@@ -110,7 +110,7 @@ impl<T: Config> ExtrinsicParams<T> for CheckTxVersion {
 
     fn new(
         base_params: &BaseParams<T>,
-        params: Self::Params,
+        _params: Self::Params,
     ) -> Result<Self, ExtrinsicParamsError> {
         Ok(CheckTxVersion(
             base_params.client.runtime_version().transaction_version,
@@ -139,7 +139,7 @@ impl<T: Config> ExtrinsicParams<T> for CheckGenesis<T> {
 
     fn new(
         base_params: &BaseParams<T>,
-        params: Self::Params,
+        _params: Self::Params,
     ) -> Result<Self, ExtrinsicParamsError> {
         Ok(CheckGenesis(base_params.client.genesis_hash()))
     }
@@ -279,7 +279,7 @@ impl<T: Config> Default for ChargeAssetTxPaymentParams<T> {
 }
 
 impl<T: Config> FromBaseParams<T> for ChargeAssetTxPaymentParams<T> {
-    fn from_base_params(params: &BaseParams<T>) -> Self {
+    fn from_base_params(_params: &BaseParams<T>) -> Self {
         Default::default()
     }
 }
@@ -312,7 +312,7 @@ impl<T: Config> ExtrinsicParams<T> for ChargeAssetTxPayment<T> {
     type Params = ChargeAssetTxPaymentParams<T>;
 
     fn new(
-        base_params: &BaseParams<T>,
+        _base_params: &BaseParams<T>,
         params: Self::Params,
     ) -> Result<Self, ExtrinsicParamsError> {
         Ok(ChargeAssetTxPayment {
@@ -355,7 +355,7 @@ pub struct ChargeTransactionPaymentParams {
 }
 
 impl<T: Config> FromBaseParams<T> for ChargeTransactionPaymentParams {
-    fn from_base_params(params: &BaseParams<T>) -> Self {
+    fn from_base_params(_params: &BaseParams<T>) -> Self {
         Default::default()
     }
 }
@@ -375,7 +375,7 @@ impl<T: Config> ExtrinsicParams<T> for ChargeTransactionPayment {
     type Params = ChargeTransactionPaymentParams;
 
     fn new(
-        base_params: &BaseParams<T>,
+        _base_params: &BaseParams<T>,
         params: Self::Params,
     ) -> Result<Self, ExtrinsicParamsError> {
         Ok(ChargeTransactionPayment {
diff --git a/subxt/src/tx/tx_progress.rs b/subxt/src/tx/tx_progress.rs
index b949de2be4..a3e26c2708 100644
--- a/subxt/src/tx/tx_progress.rs
+++ b/subxt/src/tx/tx_progress.rs
@@ -348,6 +348,10 @@ mod test {
         fn runtime_version(&self) -> crate::backend::RuntimeVersion {
             unimplemented!("just a mock impl to satisfy trait bounds")
         }
+
+        fn base_client(&self) -> crate::client::BaseClient<SubstrateConfig> {
+            unimplemented!("just a mock impl to satisfy trait bounds")
+        }
     }
 
     impl OnlineClientT<SubstrateConfig> for MockClient {