fix: fixed stack underflow error.

packages/contracts-bedrock/scripts/DeployImplementations.s.sol

@@ -2,7 +2,6 @@
 pragma solidity 0.8.15;
 
 import { Script } from "forge-std/Script.sol";
-import "forge-std/console.sol";
 
 import { LibString } from "@solady/utils/LibString.sol";
 
@@ -131,9 +130,14 @@ contract DeployImplementationsInput {
         require(address(_protocolVersionsProxy) != address(0), "DeployImplementationsInput: not set");
         return _protocolVersionsProxy;
     }
+
+    function superchainProxyAdmin() public view returns (ProxyAdmin) {
+        assertInputSet();
+        return inputs.superchainProxyAdmin;
+    }
 }
 
-contract DeployImplementationsOutput {
+contract DeployImplementationsOutput is Script {
     OPStackManager internal _opsm;
     DelayedWETH internal _delayedWETHImpl;
     OptimismPortal2 internal _optimismPortalImpl;
@@ -189,7 +193,9 @@ contract DeployImplementationsOutput {
 
     function opsm() public view returns (OPStackManager) {
         DeployUtils.assertValidContractAddress(address(_opsm));
-        DeployUtils.assertEIP1967ImplementationSet(address(_opsm));
+        // We prank as the zero address due to the Proxy's `proxyCallIfNotAdmin` modifier.
+        vm.prank(address(0));
+        DeployUtils.assertEIP1967Implementation(address(_opsm));
         return _opsm;
     }
 
@@ -310,9 +316,10 @@ contract DeployImplementations is Script {
         // To deploy a proxy contract, you need to know the proxy admin.
         // However, this proxy admin is not deployed until the OPStackManager.
         // Not using blueprint because we don't have access to l2ChainId.
-        vm.broadcast(msg.sender);
+
         // Setting proxy admin to msg.sender because ProxyAdmin is not deployed yet.
-        Proxy proxy = new Proxy(msg.sender);
+        vm.broadcast(msg.sender);
+        Proxy proxy = new Proxy(address(_dii.superchainProxyAdmin()));
         OPStackManager opsm = new OPStackManager({
             _superchainConfig: superchainConfigProxy,
             _protocolVersions: protocolVersionsProxy,

packages/contracts-bedrock/scripts/libraries/DeployUtils.sol

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
+import { Proxy } from "src/universal/Proxy.sol";
 import { LibString } from "@solady/utils/LibString.sol";
 import "forge-std/console.sol";
 
@@ -19,12 +20,14 @@ library DeployUtils {
         require(_who.code.length > 0, string.concat("DeployUtils: no code at ", LibString.toHexStringChecksummed(_who)));
     }
 
-    function assertEIP1967ImplementationSet(address _proxy) internal view {
+    function assertEIP1967ImplementationSet(address _proxy) internal {
+        address implementation = Proxy(payable(_proxy)).implementation();
+        assertValidContractAddress(implementation);
+    }
+
+    function assertEIP1967Implementation(address _proxy) internal view {
         (bool success, bytes memory result) = _proxy.staticcall(abi.encodeWithSignature("implementation()"));
-        console.logBool(success);
         require(success, "DeployUtils: EIP1967 implementation check failed");
-        console.log("success is true");
-        console.logBytes(result);
         address implementation = abi.decode(result, (address));
         assertValidContractAddress(implementation);
     }

packages/contracts-bedrock/src/universal/Proxy.sol

@@ -2,7 +2,6 @@
 pragma solidity 0.8.15;
 
 import { Constants } from "src/libraries/Constants.sol";
-import "forge-std/console.sol";
 
 /// @title Proxy
 /// @notice Proxy is a transparent proxy that passes through the call if the caller is the owner or
@@ -97,8 +96,6 @@ contract Proxy {
     /// @return Implementation address.
     function implementation() public virtual proxyCallIfNotAdmin returns (address) {
         address impl = _getImplementation();
-        console.log("inside proxy.sol implementation()");
-        console.log(impl);
         return impl;
     }
 
@@ -153,12 +150,9 @@ contract Proxy {
     function _getImplementation() internal view returns (address) {
         address impl;
         bytes32 proxyImplementation = Constants.PROXY_IMPLEMENTATION_ADDRESS;
-        console.logBytes32(proxyImplementation);
         assembly {
             impl := sload(proxyImplementation)
         }
-        console.log("inside proxy.sol _getImplementation()");
-        console.log(impl);
         return impl;
     }
 

packages/contracts-bedrock/test/DeployOPChain.t.sol

@@ -335,6 +335,7 @@ contract DeployOPChain_TestBase is Test {
     string release = "op-contracts/latest";
     SuperchainConfig superchainConfigProxy;
     ProtocolVersions protocolVersionsProxy;
+    ProxyAdmin superchainProxyAdmin;
 
     // Define default inputs for DeployOPChain.
     // `opsm` is set during `setUp` since it is an output of the previous step.