Fix Rust beta compiler errors 1.78.0-beta.1 (#5439)

* remove redundant imports

* fix test

* contains key

* fmt

* Merge branch 'unstable' into fix-beta-compiler

common/deposit_contract/src/lib.rs

@@ -86,8 +86,8 @@ pub fn decode_eth1_tx_data(
 mod tests {
     use super::*;
     use types::{
-        test_utils::generate_deterministic_keypair, ChainSpec, EthSpec, Hash256, Keypair,
-        MinimalEthSpec, Signature,
+        test_utils::generate_deterministic_keypair, ChainSpec, EthSpec, Keypair, MinimalEthSpec,
+        Signature,
     };
 
     type E = MinimalEthSpec;

common/eth2/src/lib.rs

@@ -29,10 +29,8 @@ pub use reqwest::{StatusCode, Url};
 pub use sensitive_url::{SensitiveError, SensitiveUrl};
 use serde::{de::DeserializeOwned, Serialize};
 use ssz::Encode;
-use std::convert::TryFrom;
 use std::fmt;
 use std::future::Future;
-use std::iter::Iterator;
 use std::path::PathBuf;
 use std::time::Duration;
 use store::fork_versioned_response::ExecutionOptimisticFinalizedForkVersionedResponse;

common/eth2/src/types.rs

@@ -12,7 +12,6 @@ use serde::{Deserialize, Deserializer, Serialize};
 use serde_json::Value;
 use ssz::{Decode, DecodeError};
 use ssz_derive::{Decode, Encode};
-use std::convert::TryFrom;
 use std::fmt::{self, Display};
 use std::str::{from_utf8, FromStr};
 use std::sync::Arc;

common/eth2_interop_keypairs/src/lib.rs

@@ -23,7 +23,6 @@ use bls::{Keypair, PublicKey, SecretKey};
 use ethereum_hashing::hash;
 use num_bigint::BigUint;
 use serde::{Deserialize, Serialize};
-use std::convert::TryInto;
 use std::fs::File;
 use std::path::PathBuf;
 

common/eth2_network_config/src/lib.rs

@@ -462,7 +462,7 @@ mod tests {
     use super::*;
     use ssz::Encode;
     use tempfile::Builder as TempBuilder;
-    use types::{Config, Eth1Data, GnosisEthSpec, Hash256, MainnetEthSpec};
+    use types::{Eth1Data, GnosisEthSpec, MainnetEthSpec};
 
     type E = MainnetEthSpec;
 

common/slot_clock/src/manual_slot_clock.rs

@@ -1,6 +1,5 @@
 use super::SlotClock;
 use parking_lot::RwLock;
-use std::convert::TryInto;
 use std::sync::Arc;
 use std::time::Duration;
 use types::Slot;