Fix call tracer for debug_traceTransaction (#169)

Co-authored-by: Daniel Blanco Parla <[email protected]>

vendor/client/evm-tracing/src/formatters/call_tracer.rs

@@ -43,6 +43,7 @@ impl super::ResponseFormatter for Formatter {
 		for entry in listener.entries.iter() {
 			let mut result: Vec<Call> = entry
 				.into_iter()
+				.filter(|(_, it)| it.from.ne(&H160::zero())) // Filters out calls to the ConversionRateController and other Precompiles
 				.map(|(_, it)| {
 					let from = it.from;
 					let trace_address = it.trace_address.clone();
@@ -208,7 +209,9 @@ impl super::ResponseFormatter for Formatter {
 									}),
 								) => {
 									&b[..]
-										== &a[..]
+										== a.get(0..a.len() - 1).expect(
+											"non-root element while traversing trace result",
+										)
 								}
 								_ => unreachable!(),
 							}) {