EvmRpcClient::send_raw_transaction panics on a successful transaction

[ranile]

    let rpc_services = RpcServices::EthSepolia(Some(vec![EthSepoliaService::PublicNode]));
    let evm_rpc_client = EvmRpcClient::builder_for_ic()
        .with_rpc_sources(rpc_services)
        .build();

    let tx_hash = evm_rpc_client.send_raw_transaction(...).send().await
        .expect_consistent()
        .expect("failed to send transaction");

The transaction being sent here is calling mint function of an ERC20 token.

Panic stack trace

Error: Failed update call.
Caused by: The replica returned a rejection error: reject code CanisterError, reject message Error from Canister uxrrr-q7777-77774-qaaaq-cai: Canister called `ic0.trap` with message: 'Panicked at 'Not a valid visitor: TypeId { id: 176, name: "serde_core::de::impls::OptionVisitor<evm_rpc_types::Hex32>" }', /Users/elina/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/candid-0.10.17/src/de.rs:599:17'
Canister Backtrace:
ic0::trap
ic_cdk_executor::set_panic_hook::{{closure}}::{{closure}}
std::panicking::rust_panic_with_hook
std::panicking::begin_panic_handler::{{closure}}
std::sys::backtrace::__rust_end_short_backtrace
__rustc::rust_begin_unwind
core::panicking::panic_fmt
candid::de::Deserializer::recoverable_visit_some
<&mut candid::de::Deserializer as serde_core::de::Deserializer>::deserialize_option
serde_core::de::impls::<impl serde_core::de::Deserialize for core::option::Option<T>>::deserialize
<core::marker::PhantomData<T> as serde_core::de::DeserializeSeed>::deserialize
<candid::de::Compound as serde_core::de::VariantAccess>::newtype_variant_seed
serde_core::de::VariantAccess::newtype_variant
<evm_rpc_types::response::_::<impl serde_core::de::Deserialize for evm_rpc_types::response::SendRawTransactionStatus>::deserialize::__Visitor as serde_core::de::Visitor>::visit_enum
<&mut candid::de::Deserializer as serde_core::de::Deserializer>::deserialize_enum
evm_rpc_types::response::_::<impl serde_core::de::Deserialize for evm_rpc_types::response::SendRawTransactionStatus>::deserialize
<core::marker::PhantomData<T> as serde_core::de::DeserializeSeed>::deserialize
<candid::de::Compound as serde_core::de::VariantAccess>::newtype_variant_seed
serde_core::de::VariantAccess::newtype_variant
<serde_core::de::impls::<impl serde_core::de::Deserialize for core::result::Result<T,E>>::deserialize::ResultVisitor<T,E> as serde_core::de::Visitor>::visit_enum
<&mut candid::de::Deserializer as serde_core::de::Deserializer>::deserialize_enum
serde_core::de::impls::<impl serde_core::de::Deserialize for core::result::Result<T,E>>::deserialize
<core::marker::PhantomData<T> as serde_core::de::DeserializeSeed>::deserialize
<candid::de::Compound as serde_core::de::VariantAccess>::newtype_variant_seed
serde_core::de::VariantAccess::newtype_variant
<evm_rpc_types::result::_::<impl serde_core::de::Deserialize for evm_rpc_types::result::MultiRpcResult<T>>::deserialize::__Visitor<T> as serde_core::de::Visitor>::visit_enum
<&mut candid::de::Deserializer as serde_core::de::Deserializer>::deserialize_enum
evm_rpc_types::result::_::<impl serde_core::de::Deserialize for evm_rpc_types::result::MultiRpcResult<T>>::deserialize
candid::de::IDLDeserialize::deserialize_with_type
candid::de::IDLDeserialize::get_value
<(A,) as candid::utils::ArgumentDecoder>::decode
candid::utils::decode_args
candid::utils::decode_one
ic_cdk::call::Response::candid
<evm_rpc_client::runtime::IcRuntime as evm_rpc_client::runtime::Runtime>::update_call::{{closure}}::{{closure}}
core::result::Result<T,E>::and_then
<evm_rpc_client::runtime::IcRuntime as evm_rpc_client::runtime::Runtime>::update_call::{{closure}}
<core::pin::Pin<P> as core::future::future::Future>::poll
evm_rpc_client::EvmRpcClient<Runtime,Converter,RetryPolicy>::try_execute_request_once::{{closure}}
evm_rpc_client::EvmRpcClient<Runtime,Converter,RetryPolicy>::try_execute_request::{{closure}}
evm_rpc_client::EvmRpcClient<Runtime,Converter,RetryPolicy>::execute_request::{{closure}}
evm_rpc_client::request::RequestBuilder<R,Converter,RetryPolicy,Config,Params,CandidOutput,Output>::send::{{closure}}
backend::eth::mint_tokens::{{closure}}
backend::send_transaction::{{closure}}
backend::__canister_method_build_mint_transaction::{{closure}}::{{closure}}
ic_cdk_executor::poll_all
ic_cdk_executor::in_callback_executor_context
ic_cdk::call::callback

[lpahlavi]

Hi @ranile! This is actually a known issue that was fixed in this PR. Updating Candid to v0.10.19 or later should do the trick.