Merge 'Make clippy happy' from Sonny

Closes #751

bindings/wasm/lib.rs

@@ -48,7 +48,7 @@ impl Database {
 
     #[wasm_bindgen]
     pub fn exec(&self, _sql: &str) {
-        let _res = self.conn.execute(_sql).unwrap();
+        self.conn.execute(_sql).unwrap();
     }
 
     #[wasm_bindgen]

core/translate/expr.rs

@@ -785,7 +785,7 @@ pub fn translate_expr(
                             translate_expr(
                                 program,
                                 referenced_tables,
-                                &arg_expr,
+                                arg_expr,
                                 regs + i,
                                 resolver,
                             )?;

simulator/generation/property.rs

@@ -205,7 +205,7 @@ fn property_insert_select<R: rand::Rng>(
         .collect::<Vec<_>>();
 
     // Pick a random row to select
-    let row_index = pick_index(rows.len(), rng).clone();
+    let row_index = pick_index(rows.len(), rng);
     let row = rows[row_index].clone();
 
     // Insert the rows
@@ -228,7 +228,7 @@ fn property_insert_select<R: rand::Rng>(
                 predicate,
             }) => {
                 // The inserted row will not be deleted.
-                if t == &table.name && predicate.test(&row, &table) {
+                if t == &table.name && predicate.test(&row, table) {
                     continue;
                 }
             }