fix cargo clippy warning

Author: Vincent Rouillé

foundationdb-bench/src/bin/fdb-bench.rs

@@ -61,7 +61,7 @@ impl Bench {
             let counter = counter.clone();
             let b = self.clone();
             let handle = std::thread::spawn(move || {
-                futures::executor::block_on(b.clone().run_range(range, counter))
+                futures::executor::block_on(b.run_range(range, counter))
             });
             handles.push(handle);
 

foundationdb-bindingtester/src/main.rs

@@ -412,7 +412,7 @@ impl TransactionState {
             S::Transaction(ref mut tr) => tr,
             S::TransactionCancelled(ref mut tr) => unsafe {
                 // rust binding prevent accessing cancelled transaction
-                std::mem::transmute(tr)
+                &mut *(tr as *mut TransactionCancelled as *mut Transaction)
             },
             _ => panic!("transaction is owned by a future that is still not done"),
         }

foundationdb/src/database.rs

@@ -224,6 +224,8 @@ pub trait DatabaseTransact: Sized {
     fn transact(self, trx: Transaction) -> Self::Future;
 }
 
+#[allow(clippy::needless_lifetimes)]
+#[allow(clippy::type_complexity)]
 mod boxed {
     use super::*;
 
@@ -275,6 +277,8 @@ mod boxed {
     }
 }
 
+#[allow(clippy::needless_lifetimes)]
+#[allow(clippy::type_complexity)]
 mod boxed_local {
     use super::*;
 

foundationdb/src/future.rs

@@ -343,6 +343,7 @@ pub struct FdbValuesIter {
 impl Iterator for FdbValuesIter {
     type Item = FdbValue;
     fn next(&mut self) -> Option<Self::Item> {
+        #[allow(clippy::iter_nth_zero)]
         self.nth(0)
     }