gas used returned by cast run doesn't match on-chain gas used amount

[eshaben]

Component

Cast

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

forge 0.2.0 (3fa0270 2024-03-15T00:16:21.040039000Z)

What command(s) is the bug in?

cast run

Operating System

macOS (Intel)

Describe the bug

When running the following command, the gas used value printed at the end of the output does not match the gas used on-chain:

cast run 0x4e42d4c4cc45a560b45cc9d299117498678b49bb5d5997e4d355d302acfaec55 --rpc-url https://rpc.api.moonbeam.network

Running the above command outputs: Gas used: 4883401. But on the transaction details on Moonscan, you'll see that the actual gas used was 6962784.

I believe this may be related to MBIP-5 on Moonbeam, where the gas required increases with the increase in chain state.

Ultimately, when using Cast, this issue makes it seem that the transaction was successful, but it actually failed.

[Lohann]

Moonbean doesn't use REVM, instead is uses sputnik-evm, which is not ethereum compliant, so the only way to get the exact same gas cost as moonbean, is using the same evm.

• Wrong Execution Result using frontier hardfork rust-ethereum/evm#222
• BALANCE opcode must return a different value for the origin account rust-ethereum/evm#225
• Enable/disable STATICCALL Opcode rust-ethereum/evm#248
• Remove touched empty accounts when empty_considered_exists is disabled. rust-ethereum/evm#249