bug when debuging transaction

[henry-hz]

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 (64fe4ac 2022-07-26T00:04:05.891537523Z)

What command(s) is the bug in?

cast run --debug

Operating System

Linux

Describe the bug

RUST_BACKTRACE=full cast run --debug [my-anvil-transaction]                                                                                                         16:19:09
Executing previous transactions from the block.
The application panicked (crashed).
Message:  index out of bounds: the len is 0 but the index is 0
Location: evm/src/debug.rs:67

This is a bug. Consider reporting it at https://github.com/foundry-rs/foundry

  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BACKTRACE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   1: __libc_start_main<unknown>
      at <unknown source file>:<unknown line>

Run with COLORBT_SHOW_HIDDEN=1 environment variable to disable frame filtering.
zsh: IOT instruction  RUST_BACKTRACE=full cast run --debug 

[onbjerg]

What chain is this?

[henry-hz]

@onbjerg thanks for the follow-up. Please, is there a way to generate an output exaclty the 'dapp.sol.json' ? so I can use the 'seth run --debug [tx]' meanwhile until the debugger becomes stable.

[mattsse]

@onbjerg thanks for the follow-up. Please, is there a way to generate an output exaclty the 'dapp.sol.json' ? so I can use the 'seth run --debug [tx]' meanwhile until the debugger becomes stable.

this tx is not on mainnet, on which chain is it?
no way to debug otherwise

[henry-hz]

using anvil, or other local network. As I posted here , it can be in any EVM compatible network, once we have the sources in the local machine we can bypass the etherscan dependency to download them, and debug on any network with the full source code locally

[onbjerg]

I think you're misunderstanding: we can't find the transaction you reference in this issue. What chain is it on, so we can try to reproduce the error and fix it?

[henry-hz]

sorry, it was only an example, this transaction was on my machine [anvil]

[onbjerg]

Can you provide some steps on how to generate the transaction? E.g. what the transaction did. It looks like some data is missing, so the question is whether this is a bug in Anvil or in Cast.

[henry-hz]

yes,

{
  "deployedTo": "0x5FbDB2315678afecb367f032d93F642f64180aa3",
  "deployer": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
  "transactionHash": "0x779b4e00348b4d2ba53bd58f5b81096724d8e93e2f703a18f4b77dc3b2ed4a86"
}
0x5FbDB2315678afecb367f032d93F642f64180aa3
transaction output
{
  "blockHash": "0xd4c816a715937761c5081ecffeb0f9a1ff3d0443af83d92cabb33ca8e8a31b29",
  "blockNumber": "0x2",
  "contractAddress": null,
  "cumulativeGasUsed": "0xef117",
  "effectiveGasPrice": "0xa685e3f9",
  "from": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
  "gasUsed": "0xef117",
  "logs": [
    {
      "address": "0x8ff3801288a85ea261e4277d44e1131ea736f77b",
      "blockHash": "0xd4c816a715937761c5081ecffeb0f9a1ff3d0443af83d92cabb33ca8e8a31b29",
      "blockNumber": "0x2",
      "data": "0x",
      "logIndex": "0x0",
      "removed": false,
      "topics": [
        "0xce241d7ca1f669fee44b6fc00b8eba2df3bb514eed0f6f668f8f89096e81ed94",
        "0x000000000000000000000000a16e02e87b7454126e5e10d957a927a7f5b5d2be"
      ],
      "transactionHash": "0xaf9ca3b91bf937dc9f57bad33c39c3ed1a21232b22c5bdb66918f4826b6e5169",
      "transactionIndex": "0x0",
      "transactionLogIndex": "0x0"
    },
    {
      "address": "0x8ff3801288a85ea261e4277d44e1131ea736f77b",
      "blockHash": "0xd4c816a715937761c5081ecffeb0f9a1ff3d0443af83d92cabb33ca8e8a31b29",
      "blockNumber": "0x2",
      "data": "0x",
      "logIndex": "0x1",
      "removed": false,
      "topics": [
        "0xce241d7ca1f669fee44b6fc00b8eba2df3bb514eed0f6f668f8f89096e81ed94",
        "0x000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb92266"
      ],
      "transactionHash": "0xaf9ca3b91bf937dc9f57bad33c39c3ed1a21232b22c5bdb66918f4826b6e5169",
      "transactionIndex": "0x0",
      "transactionLogIndex": "0x1"
    }
  ],
  "logsBloom": "0x00000000000000000000000010000000000000000000020000000000000000000000000800000000000000000000000000000000000000080000002000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000200000000000000000000000002000000000000000000000000000000000000000000000000000000000040000000001000000000000000000",
  "status": "0x1",
  "to": "0x5fbdb2315678afecb367f032d93f642f64180aa3",
  "transactionHash": "0xaf9ca3b91bf937dc9f57bad33c39c3ed1a21232b22c5bdb66918f4826b6e5169",
  "transactionIndex": "0x0"
}
transaction output
{
  "blockHash": "0xf8130324f4daccce246a25ad931aadceea4915b7e750989ce16d4f92e78ec98b",
  "blockNumber": "0x3",
  "contractAddress": null,
  "cumulativeGasUsed": "0xd6521",
  "effectiveGasPrice": "0xa0f47573",
  "from": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266",
  "gasUsed": "0xd6521",
  "logs": [],
  "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "status": "0x1",
  "to": "0x5fbdb2315678afecb367f032d93f642f64180aa3",
  "transactionHash": "0xee7a8607dfab1253945a33e0856f6f84ba675338bfc561fb0aff07c0614e7f47",
  "transactionIndex": "0x0"
}
0x280de1b81BE475E9c082692ddd53aEb823E72A01
0x8Ff3801288a85ea261E4277d44E1131Ea736F77B

[onbjerg]

So the transaction just deploys a contract?