Panic

use fuel_types::ContractId;
pub struct Panic {
    pub contract_id: ContractId, 
    pub reason: u32, 
}

• A Panic receipt is produced when a Sway smart contract call fails for a reason that doesn't produce a revert.
• The reason field records the reason for the panic, which is represented by a number between 0 and 255. You can find the mapping between the values and their meanings here in the FuelVM source code.
• Read more about Panic in the Fuel Protocol spec
• You can handle functions that could produce a Panic receipt by adding a parameter with the type abi::Panic.

fn handle_panic(panic: abi::Panic) {
  // handle the panic 
}