And i think the last one

lib/oxigraph/src/storage/backend/rocksdb.rs

@@ -1314,6 +1314,8 @@ impl SstFileWriter {
     }
 }
 
+#[derive(thiserror::Error)]
+#[error("{}", self.message())]
 struct ErrorStatus(rocksdb_status_t);
 
 unsafe impl Send for ErrorStatus {}
@@ -1352,14 +1354,6 @@ impl fmt::Debug for ErrorStatus {
     }
 }
 
-impl fmt::Display for ErrorStatus {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.write_str(self.message())
-    }
-}
-
-impl Error for ErrorStatus {}
-
 impl From<ErrorStatus> for StorageError {
     fn from(status: ErrorStatus) -> Self {
         if status.0.code == rocksdb_status_code_t_rocksdb_status_code_io_error {

lib/oxrdfio/src/error.rs

@@ -63,7 +63,7 @@ impl SyntaxError {
     /// The location of the error inside of the file.
     #[inline]
     pub fn location(&self) -> Option<Range<TextPosition>> {
-        match &self {
+        match self {
             Self::Turtle(e) => {
                 let location = e.location();
                 Some(