diff --git a/quinn-proto/src/crypto.rs b/quinn-proto/src/crypto.rs
index 3122ad01b..5cd01fe3c 100644
--- a/quinn-proto/src/crypto.rs
+++ b/quinn-proto/src/crypto.rs
@@ -350,14 +350,14 @@ impl HeaderKey {
         use self::HeaderKey::*;
         match self {
             AesEcb128(key) => {
-                let mut cipher = Ecb::<Aes128, ZeroPadding>::new_var(key, &[]).unwrap();
+                let cipher = Ecb::<Aes128, ZeroPadding>::new_var(key, &[]).unwrap();
                 let mut buf = [0; 16];
                 buf.copy_from_slice(sample);
                 cipher.encrypt(&mut buf, 16).unwrap();
                 [buf[0], buf[1], buf[2], buf[3], buf[4]]
             }
             AesEcb256(key) => {
-                let mut cipher = Ecb::<Aes256, ZeroPadding>::new_var(key, &[]).unwrap();
+                let cipher = Ecb::<Aes256, ZeroPadding>::new_var(key, &[]).unwrap();
                 let mut buf = [0; 16];
                 buf.copy_from_slice(sample);
                 cipher.encrypt(&mut buf, 16).unwrap();
diff --git a/quinn-proto/src/stream.rs b/quinn-proto/src/stream.rs
index 669f9d754..910627721 100644
--- a/quinn-proto/src/stream.rs
+++ b/quinn-proto/src/stream.rs
@@ -319,7 +319,7 @@ impl Assembler {
         }
     }
 
-    /// Whether `peek` will return at least one nonempty slice
+    /// Whether `read` will return nonzero
     pub fn blocked(&self) -> bool {
         let mask = !0 >> self.written_offset;
         self.written.front().map_or(true, |x| x & mask == mask)
diff --git a/quinn/src/lib.rs b/quinn/src/lib.rs
index 9202d25b7..2a1d09224 100644
--- a/quinn/src/lib.rs
+++ b/quinn/src/lib.rs
@@ -1039,7 +1039,6 @@ impl Connection {
             .inner
             .connection(self.0.conn)
             .remote()
-            .into()
     }
 
     /// The `ConnectionId`s defined for `conn` locally.