matrix-sdk: Fix or silence a bunch of new clippy warnings

matrix_sdk/src/error.rs

@@ -92,7 +92,7 @@ pub enum Error {
 
     /// An IO error happened.
     #[error(transparent)]
-    IO(#[from] IoError),
+    Io(#[from] IoError),
 
     /// An error occurred in the Matrix client library.
     #[error(transparent)]

matrix_sdk_base/src/store/sled_store/store_key.rs

@@ -48,6 +48,7 @@ pub enum Error {
     Random(#[from] RngError),
 }
 
+#[allow(clippy::from_over_into)]
 impl Into<StoreError> for Error {
     fn into(self) -> StoreError {
         match self {

matrix_sdk_common/src/deserialized_responses.rs

@@ -282,16 +282,16 @@ impl TryFrom<StateEvent<MemberEventContent>> for MemberEvent {
     }
 }
 
-impl Into<SyncStateEvent<MemberEventContent>> for MemberEvent {
-    fn into(self) -> SyncStateEvent<MemberEventContent> {
+impl From<MemberEvent> for SyncStateEvent<MemberEventContent> {
+    fn from(other: MemberEvent) -> SyncStateEvent<MemberEventContent> {
         SyncStateEvent {
-            content: self.content,
-            event_id: self.event_id,
-            sender: self.sender,
-            origin_server_ts: self.origin_server_ts,
-            state_key: self.state_key.to_string(),
-            prev_content: self.prev_content,
-            unsigned: self.unsigned,
+            content: other.content,
+            event_id: other.event_id,
+            sender: other.sender,
+            origin_server_ts: other.origin_server_ts,
+            state_key: other.state_key.to_string(),
+            prev_content: other.prev_content,
+            unsigned: other.unsigned,
         }
     }
 }
@@ -319,12 +319,12 @@ impl TryFrom<StrippedStateEvent<MemberEventContent>> for StrippedMemberEvent {
     }
 }
 
-impl Into<StrippedStateEvent<MemberEventContent>> for StrippedMemberEvent {
-    fn into(self) -> StrippedStateEvent<MemberEventContent> {
-        StrippedStateEvent {
-            content: self.content,
-            sender: self.sender,
-            state_key: self.state_key.to_string(),
+impl From<StrippedMemberEvent> for StrippedStateEvent<MemberEventContent> {
+    fn from(other: StrippedMemberEvent) -> Self {
+        Self {
+            content: other.content,
+            sender: other.sender,
+            state_key: other.state_key.to_string(),
         }
     }
 }

matrix_sdk_crypto/src/file_encryption/key_export.rs

@@ -52,7 +52,7 @@ pub enum KeyExportError {
     UnsupportedVersion,
     /// The MAC of the encrypted payload is invalid.
     #[error("The MAC of the encrypted payload is invalid.")]
-    InvalidMAC,
+    InvalidMac,
     /// The decrypted key export isn't valid UTF-8.
     #[error(transparent)]
     InvalidUtf8(#[from] std::string::FromUtf8Error),
@@ -64,7 +64,7 @@ pub enum KeyExportError {
     Decode(#[from] DecodeError),
     /// The key export doesn't all the required fields.
     #[error(transparent)]
-    IO(#[from] std::io::Error),
+    Io(#[from] std::io::Error),
 }
 
 /// Try to decrypt a reader into a list of exported room keys.
@@ -220,7 +220,7 @@ fn decrypt_helper(ciphertext: &str, passphrase: &str) -> Result<String, KeyExpor
 
     let mut hmac = Hmac::<Sha256>::new_varkey(hmac_key).expect("Can't create an HMAC object");
     hmac.update(&decoded[0..ciphertext_end]);
-    hmac.verify(&mac).map_err(|_| KeyExportError::InvalidMAC)?;
+    hmac.verify(&mac).map_err(|_| KeyExportError::InvalidMac)?;
 
     let mut ciphertext = &mut decoded[ciphertext_start..ciphertext_end];
     let mut aes = Aes256Ctr::new_var(&key, &iv).expect("Can't create an AES object");

matrix_sdk_crypto/src/identities/user.rs

@@ -90,18 +90,21 @@ impl From<CrossSigningKey> for UserSigningPubkey {
     }
 }
 
+#[allow(clippy::from_over_into)]
 impl Into<CrossSigningKey> for MasterPubkey {
     fn into(self) -> CrossSigningKey {
         self.0.as_ref().clone()
     }
 }
 
+#[allow(clippy::from_over_into)]
 impl Into<CrossSigningKey> for UserSigningPubkey {
     fn into(self) -> CrossSigningKey {
         self.0.as_ref().clone()
     }
 }
 
+#[allow(clippy::from_over_into)]
 impl Into<CrossSigningKey> for SelfSigningPubkey {
     fn into(self) -> CrossSigningKey {
         self.0.as_ref().clone()