tantivy: Fix some clippy warnings.

src/document.rs

@@ -70,7 +70,7 @@ impl Document {
     fn add_date(&mut self, field: &Field, value: &PyDateTime) {
         let datetime = Utc
             .ymd(
-                value.get_year().into(),
+                value.get_year(),
                 value.get_month().into(),
                 value.get_day().into(),
             )
@@ -78,7 +78,7 @@ impl Document {
                 value.get_hour().into(),
                 value.get_minute().into(),
                 value.get_second().into(),
-                value.get_microsecond().into(),
+                value.get_microsecond(),
             );
 
         self.inner.add_date(field.inner, &datetime);

src/query.rs

@@ -36,7 +36,7 @@ impl QueryParser {
         default_fields: Vec<&Field>,
     ) -> PyResult<QueryParser> {
         let default_fields: Vec<tv::schema::Field> =
-            default_fields.iter().map(|&f| f.inner.clone()).collect();
+            default_fields.iter().map(|&f| f.inner).collect();
 
         let parser =
             tv::query::QueryParser::for_index(&index.inner, default_fields);

src/searcher.rs

@@ -36,10 +36,8 @@ impl Searcher {
         let ret = self.inner.search(&query.inner, &collector.inner);
         match ret {
             Ok(r) => {
-                let result: Vec<(f32, DocAddress)> = r
-                    .iter()
-                    .map(|(f, d)| (f.clone(), DocAddress::from(d)))
-                    .collect();
+                let result: Vec<(f32, DocAddress)> =
+                    r.iter().map(|(f, d)| (*f, DocAddress::from(d))).collect();
                 Ok(result)
             }
             Err(e) => Err(exceptions::ValueError::py_err(e.to_string())),