use crate::{pack, pack::index};use git_object::owned; #[derive(thiserror::Error, Debug)]pub enum Error<E: std::error::Error + Send + Sync + 'static> {    #[error("One of the traversal processors failed")]    Processor(#[source] E),    #[error("Index file, pack file or object verification failed")]    Verify(#[from] index::verify::Error),    #[error("The pack delta tree index could not be built")]    Tree(#[from] pack::tree::from_offsets::Error),    #[error("The tree traversal failed")]    TreeTraversal(#[from] pack::tree::traverse::Error),    #[error("The pack of this index file failed to verify its checksums")]    PackChecksum(#[from] pack::data::verify::Error),    #[error("Object {id} at offset {offset} could not be decoded")]    PackDecode {        id: owned::Id,        offset: u64,        source: pack::data::decode::Error,    },    #[error("The packfiles checksum didn't match the index file checksum: expected {expected}, got {actual}")]    PackMismatch { expected: owned::Id, actual: owned::Id },    #[error("The SHA1 of {kind} object at offset {offset} didn't match the checksum in the index file: expected {expected}, got {actual}")]    PackObjectMismatch {        expected: owned::Id,        actual: owned::Id,        offset: u64,        kind: git_object::Kind,    },    #[error("The CRC32 of {kind} object at offset {offset} didn't match the checksum in the index file: expected {expected}, got {actual}")]    Crc32Mismatch {        expected: u32,        actual: u32,        offset: u64,        kind: git_object::Kind,    },    #[error("Interrupted")]    Interrupted,}