diff --git a/src/bin/dfi.rs b/src/bin/dfi.rs
index 16425cc90..1c1f89d91 100644
--- a/src/bin/dfi.rs
+++ b/src/bin/dfi.rs
@@ -1,4 +1,3 @@
-#[macro_use]
 extern crate clap;
 use async_executor::Executor;
 use sapvi::rpc::options::ProgramOptions;
diff --git a/src/bin/spend-classic.rs b/src/bin/spend-classic.rs
index 04335d141..dd5f73534 100644
--- a/src/bin/spend-classic.rs
+++ b/src/bin/spend-classic.rs
@@ -167,7 +167,6 @@ impl SpendRevealedValues {
 
 fn main() {
     use rand::rngs::OsRng;
-    use std::time::Instant;
 
     let value = 110;
     let randomness_value: jubjub::Fr = jubjub::Fr::random(&mut OsRng);
diff --git a/src/error.rs b/src/error.rs
index 1f0711a82..e81e63c6f 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -107,7 +107,7 @@ impl fmt::Display for Error {
 
 // TODO: Match statement to parse external errors into strings.
 impl From<zeromq::ZmqError> for Error {
-    fn from(err: zeromq::ZmqError) -> Error {
+    fn from(_err: zeromq::ZmqError) -> Error {
         Error::ZMQError
     }
 }
@@ -119,31 +119,31 @@ impl From<std::io::Error> for Error {
 }
 
 impl From<rusqlite::Error> for Error {
-    fn from(err: rusqlite::Error) -> Error {
+    fn from(_err: rusqlite::Error) -> Error {
         Error::RusqliteError
     }
 }
 
 impl From<ZKVMError> for Error {
-    fn from(err: ZKVMError) -> Error {
+    fn from(_err: ZKVMError) -> Error {
         Error::VMError
     }
 }
 
 impl From<bellman::SynthesisError> for Error {
-    fn from(err: bellman::SynthesisError) -> Error {
+    fn from(_err: bellman::SynthesisError) -> Error {
         Error::Groth16Error
     }
 }
 
 impl<T> From<async_channel::SendError<T>> for Error {
-    fn from(err: async_channel::SendError<T>) -> Error {
+    fn from(_err: async_channel::SendError<T>) -> Error {
         Error::AsyncChannelError
     }
 }
 
 impl From<async_channel::RecvError> for Error {
-    fn from(err: async_channel::RecvError) -> Error {
+    fn from(_err: async_channel::RecvError) -> Error {
         Error::AsyncChannelError
     }
 }
@@ -180,7 +180,7 @@ impl From<std::string::FromUtf8Error> for Error {
 }
 
 impl From<state::VerifyFailed> for Error {
-    fn from(err: state::VerifyFailed) -> Error {
+    fn from(_err: state::VerifyFailed) -> Error {
         Error::VerifyFailed
     }
 }
diff --git a/src/rpc/jsonserver.rs b/src/rpc/jsonserver.rs
index 352617966..9c081f531 100644
--- a/src/rpc/jsonserver.rs
+++ b/src/rpc/jsonserver.rs
@@ -71,7 +71,7 @@ pub async fn listen(
     }
 }
 
-pub async fn start(executor: Arc<Executor<'_>>, options: ProgramOptions, adapter: Arc<RpcAdapter>) -> Result<()> {
+pub async fn start(executor: Arc<Executor<'_>>, options: ProgramOptions, _adapter: Arc<RpcAdapter>) -> Result<()> {
     let p2p = net::P2p::new(options.network_settings);
 
     let rpc = RpcInterface::new(p2p.clone());
diff --git a/src/rpc/options.rs b/src/rpc/options.rs
index 0e988fd4b..1d34a8ac4 100644
--- a/src/rpc/options.rs
+++ b/src/rpc/options.rs
@@ -1,4 +1,3 @@
-#[macro_use]
 use std::net::SocketAddr;
 use crate::{net, Result};
 
diff --git a/src/rpc/test.rs b/src/rpc/test.rs
index 8f3b7ef11..e69de29bb 100644
--- a/src/rpc/test.rs
+++ b/src/rpc/test.rs
@@ -1 +0,0 @@
-fn foo() {}