diff --git a/runtime/near-vm-logic/src/logic.rs b/runtime/near-vm-logic/src/logic.rs
index 1ab91f90e11..a7e0113c217 100644
--- a/runtime/near-vm-logic/src/logic.rs
+++ b/runtime/near-vm-logic/src/logic.rs
@@ -18,7 +18,6 @@ use near_primitives_core::types::{
 };
 use near_vm_errors::InconsistentStateError;
 use near_vm_errors::{HostError, VMLogicError};
-use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::mem::size_of;
 
@@ -2517,16 +2516,14 @@ impl<'a> VMLogic<'a> {
     }
 }
 
-#[derive(Serialize, Deserialize, Clone)]
+#[derive(Clone)]
 pub struct VMOutcome {
-    #[serde(with = "crate::serde_with::u128_dec_format")]
     pub balance: Balance,
     pub storage_usage: StorageUsage,
     pub return_data: ReturnData,
     pub burnt_gas: Gas,
     pub used_gas: Gas,
     pub logs: Vec<String>,
-    #[serde(skip)]
     /// Data collected from making a contract call
     pub profile: ProfileData,
 }
diff --git a/runtime/near-vm-runner-standalone/src/main.rs b/runtime/near-vm-runner-standalone/src/main.rs
index 56d22b83071..44800325239 100644
--- a/runtime/near-vm-runner-standalone/src/main.rs
+++ b/runtime/near-vm-runner-standalone/src/main.rs
@@ -102,7 +102,7 @@ struct CliArgs {
     protocol_version: Option<ProtocolVersion>,
 }
 
-#[derive(Debug, Clone, Serialize)]
+#[derive(Debug, Clone)]
 struct StandaloneOutput {
     pub outcome: Option<VMOutcome>,
     pub err: Option<String>,
@@ -166,14 +166,13 @@ fn main() {
     let (outcome, err) = results.outcomes.pop().unwrap();
 
     println!(
-        "{}",
-        serde_json::to_string(&StandaloneOutput {
+        "{:#?}",
+        StandaloneOutput {
             outcome: outcome.clone(),
             err: err.map(|it| it.to_string()),
             receipts: results.state.get_receipt_create_calls().clone(),
             state: State(results.state.fake_trie),
-        })
-        .unwrap()
+        }
     );
 
     match &outcome {