fix CI errors

pkg/eth/debug_test/debug_test.go

@@ -131,7 +131,6 @@ var _ = BeforeSuite(func() {
 	backend, err := eth.NewEthBackend(db, &eth.Config{
 		ChainConfig: chainConfig,
 		VMConfig:    vm.Config{},
-		RPCGasCap:   big.NewInt(10000000000), // Max gas capacity for a rpc call.
 		GroupCacheConfig: &shared.GroupCacheConfig{
 			StateDB: shared.GroupConfig{
 				Name:                   "eth_debug_test",

pkg/eth/tracing.go

@@ -236,9 +236,14 @@ type txTraceResult struct {
 	Error  string      `json:"error,omitempty"`  // Trace failure produced by the tracer
 }
 
+var noGenesisErr = errors.New("genesis is not traceable")
+
 // TraceBlockByNumber returns the structured logs created during the execution of
 // EVM and returns them as a JSON object.
 func (api *TracingAPI) TraceBlockByNumber(ctx context.Context, number rpc.BlockNumber, config *TraceConfig) ([]*txTraceResult, error) {
+	if number == 0 {
+		return nil, noGenesisErr
+	}
 	block, err := api.blockByNumber(ctx, number)
 	if err != nil {
 		return nil, err
@@ -263,6 +268,9 @@ func (api *TracingAPI) TraceBlockByHash(ctx context.Context, hash common.Hash, c
 	if err != nil {
 		return nil, err
 	}
+	if block.NumberU64() == 0 {
+		return nil, noGenesisErr
+	}
 	trace, err := api.traceBlock(ctx, block, config)
 	if trace != nil && err == nil {
 		return trace, nil