ci: run clippy on all features

.github/workflows/ci_rust.yml

@@ -254,6 +254,7 @@ jobs:
       - name: Run cargo clippy
         run: |
           cargo clippy --manifest-path ${{env.ROOT_PATH}}/Cargo.toml --all-targets -- -D warnings
+          cargo clippy --manifest-path ${{env.ROOT_PATH}}/Cargo.toml --all-targets --all-features -- -D warnings
 
   msrv:
     runs-on: ubuntu-latest

bindings/rust/s2n-tls/src/client_hello.rs

@@ -138,6 +138,10 @@ impl fmt::Debug for ClientHello {
     }
 }
 
+// Leftover from when fingerprinting was implemented in this module
+#[cfg(feature = "unstable-fingerprint")]
+pub use crate::fingerprint::FingerprintType;
+
 #[cfg(test)]
 mod tests {
     use crate::client_hello::ClientHello;
@@ -177,7 +181,3 @@ mod tests {
         assert_eq!("incoming.telemetry.mozilla.org".as_bytes(), server_name);
     }
 }
-
-// Leftover from when fingerprinting was implemented in this module
-#[cfg(feature = "unstable-fingerprint")]
-pub use crate::fingerprint::FingerprintType;

bindings/rust/s2n-tls/src/fingerprint.rs

@@ -362,7 +362,7 @@ mod tests {
     };
     use std::{collections::HashSet, error::Error};
 
-    const CLIENT_HELLO_BYTES: &'static [u8] = &[
+    const CLIENT_HELLO_BYTES: &[u8] = &[
         0x01, 0x00, 0x00, 0xEC, 0x03, 0x03, 0x90, 0xe8, 0xcc, 0xee, 0xe5, 0x70, 0xa2, 0xa1, 0x2f,
         0x6b, 0x69, 0xd2, 0x66, 0x96, 0x0f, 0xcf, 0x20, 0xd5, 0x32, 0x6e, 0xc4, 0xb2, 0x8c, 0xc7,
         0xbd, 0x0a, 0x06, 0xc2, 0xa5, 0x14, 0xfc, 0x34, 0x20, 0xaf, 0x72, 0xbf, 0x39, 0x99, 0xfb,
@@ -398,7 +398,7 @@ mod tests {
         let client_hello = pair.server.client_hello()?;
 
         let mut builder = Fingerprint::builder(FingerprintType::JA3)?;
-        let mut fingerprint = builder.build(&client_hello)?;
+        let mut fingerprint = builder.build(client_hello)?;
 
         let hash_size = fingerprint.hash_size()?;
         let hash = fingerprint.hash()?;
@@ -498,7 +498,7 @@ mod tests {
             pair.handshake()?;
 
             let client_hello = pair.server.client_hello()?;
-            let mut fingerprint = builder.build(&client_hello)?;
+            let mut fingerprint = builder.build(client_hello)?;
 
             let hash = fingerprint.hash()?;
             hex::decode(hash)?;

bindings/rust/s2n-tls/src/renegotiate.rs

@@ -121,7 +121,7 @@ impl config::Builder {
                         return CallbackResult::Success.into();
                     }
                 }
-                return CallbackResult::Failure.into();
+                CallbackResult::Failure.into()
             })
         }
 
@@ -311,7 +311,7 @@ mod tests {
             // Like s2n-tls, a call to send / write is required.
             let to_send = [0; 1];
             self.server
-                .write(&to_send)
+                .write_all(&to_send)
                 .expect("Failed to write hello request");
 
             // s2n-tls needs to attempt to read data to receive the message
@@ -328,7 +328,7 @@ mod tests {
             self.server.write_all(&to_send)?;
             unwrap_poll(self.client.poll_recv(&mut recv_buffer))?;
             unwrap_poll(self.client.poll_send(&to_send))?;
-            self.server.read(&mut recv_buffer)?;
+            self.server.read_exact(&mut recv_buffer)?;
             Ok(())
         }
 
@@ -447,7 +447,7 @@ mod tests {
         let to_write = "hello world";
         let mut buf = [0; 100];
         pair.server
-            .write(to_write.as_bytes())
+            .write_all(to_write.as_bytes())
             .expect("Application data during renegotiate");
         let (result, n) = pair.client.poll_renegotiate(&mut buf);
         assert!(result.is_pending());
@@ -489,7 +489,7 @@ mod tests {
                 if this.count > 1 {
                     // Repeatedly block the handshake in order to verify
                     // that renegotiate can handle Pending callbacks.
-                    this.count = this.count - 1;
+                    this.count -= 1;
                     Pending
                 } else {
                     // Perform the pkey operation with the selected cert / key pair.
@@ -568,7 +568,7 @@ mod tests {
                 if this.count > 1 {
                     // Repeatedly block the handshake in order to verify
                     // that renegotiate can handle Pending callbacks.
-                    this.count = this.count - 1;
+                    this.count -= 1;
                     Pending
                 } else {
                     conn.set_server_name(&this.server_name)?;