[INFO] cloning repository https://github.com/shixiaozhong/bitcask-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shixiaozhong/bitcask-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshixiaozhong%2Fbitcask-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshixiaozhong%2Fbitcask-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7390187258b7ee392a3990c1b32b7935afdda95f
[INFO] testing shixiaozhong/bitcask-rs against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshixiaozhong%2Fbitcask-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shixiaozhong/bitcask-rs
[INFO] finished tweaking git repo https://github.com/shixiaozhong/bitcask-rs
[INFO] tweaked toml for git repo https://github.com/shixiaozhong/bitcask-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shixiaozhong/bitcask-rs on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shixiaozhong/bitcask-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbb816139928fa4cdf8861b5ad268b7163ed97783a3955350aa7b1f599e0a33e
[INFO] running `Command { std: "docker" "start" "-a" "dbb816139928fa4cdf8861b5ad268b7163ed97783a3955350aa7b1f599e0a33e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbb816139928fa4cdf8861b5ad268b7163ed97783a3955350aa7b1f599e0a33e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb816139928fa4cdf8861b5ad268b7163ed97783a3955350aa7b1f599e0a33e", kill_on_drop: false }`
[INFO] [stdout] dbb816139928fa4cdf8861b5ad268b7163ed97783a3955350aa7b1f599e0a33e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0e4a8f1d344768e1a87fb23a919de05e42f8ee4ac1ef51b74eceb2376c05de1
[INFO] running `Command { std: "docker" "start" "-a" "c0e4a8f1d344768e1a87fb23a919de05e42f8ee4ac1ef51b74eceb2376c05de1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling jiff v0.2.16
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling prost-derive v0.14.1
[INFO] [stderr]    Compiling prost v0.14.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling env_filter v0.1.4
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling bitcask-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `EngineConfig` is never constructed
[INFO] [stdout]  --> src/config.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct EngineConfig {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `validate` is never used
[INFO] [stdout]   --> src/config.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl EngineConfig {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 21 |     pub fn validate(&self) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IOConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct IOConfig {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IteratorConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct IteratorConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DATA_FILE_NAME_SUFFIX` is never used
[INFO] [stdout]   --> src/data/data_file.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const DATA_FILE_NAME_SUFFIX: &str = "data";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INITIAL_FILE_ID` is never used
[INFO] [stdout]   --> src/data/data_file.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const INITIAL_FILE_ID: u32 = 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataFile` is never constructed
[INFO] [stdout]   --> src/data/data_file.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct DataFile {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/data/data_file.rs:26:12
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl DataFile {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  26 |     pub fn new(dir_path: &PathBuf, file_id: u32) -> Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  41 |     pub fn read(&self, offset: u64) -> Result<LogRecord> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn write(&self, log_record: LogRecord) -> Result<u64> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn get_write_offset(&self) -> u64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn set_write_offset(&self, offset: u64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn get_file_id(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogRecordPos` is never constructed
[INFO] [stdout]  --> src/data/log_record.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct LogRecordPos {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogRecordType` is never used
[INFO] [stdout]   --> src/data/log_record.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum LogRecordType {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]   --> src/data/log_record.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl LogRecordType {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 20 |     pub fn from_u8(v: u8) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogRecord` is never constructed
[INFO] [stdout]   --> src/data/log_record.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct LogRecord {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `encode`, `get_crc`, `encode_length`, and `encode_without_crc` are never used
[INFO] [stdout]   --> src/data/log_record.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl LogRecord {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn get_crc(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn encode_length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn encode_without_crc(&self) -> BytesMut {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_log_record_header_size` is never used
[INFO] [stdout]   --> src/data/log_record.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn max_log_record_header_size() -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Engine` is never constructed
[INFO] [stdout]   --> src/db.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Engine {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/db.rs:27:12
[INFO] [stdout]     |
[INFO] [stdout]  26 | impl Engine {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  27 |     pub fn open(opts: EngineConfig) -> Result<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn get(&self, key: Bytes) -> Result<Bytes> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn put(&self, key: Bytes, value: Bytes) -> Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     pub fn delete(&self, key: Bytes) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn list_keys(&self) -> Result<Vec<Bytes>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Errors` is never used
[INFO] [stdout]  --> src/errors.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Errors {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/errors.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub type Result<T> = result::Result<T, Errors>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IOManager` is never used
[INFO] [stdout]  --> src/fio/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait IOManager: Send + Sync {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_io_manager` is never used
[INFO] [stdout]   --> src/fio/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn new_io_manager(file_path: PathBuf) -> Result<impl IOManager> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EngineIO` is never constructed
[INFO] [stdout]   --> src/fio/db_io.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct EngineIO {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `init`, `get`, `put`, and `sync` are never used
[INFO] [stdout]    --> src/fio/db_io.rs:29:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl EngineIO {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  29 |     pub fn new(io_config: IOConfig) -> Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  44 |     pub fn init(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get(&self, log_record_pos: LogRecordPos) -> Result<LogRecord> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     pub fn put(&self, log_record: LogRecord) -> Result<LogRecordPos> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileIO` is never constructed
[INFO] [stdout]   --> src/fio/file_io.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct FileIO {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/fio/file_io.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl FileIO {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn new(file_path: PathBuf) -> Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Indexer` is never used
[INFO] [stdout]  --> src/inidex/mod.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Indexer: Send + Sync {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_indexer` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn new_indexer(index_type: IndexType) -> impl Indexer {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IndexType` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum IndexType {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IndexIterator` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub trait IndexIterator: Send + Sync {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTree` is never constructed
[INFO] [stdout]   --> src/inidex/btree.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct BTree {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/inidex/btree.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BTree {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 21 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTreeIterator` is never constructed
[INFO] [stdout]    --> src/inidex/btree.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct BTreeIterator {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Iterator` is never constructed
[INFO] [stdout]  --> src/iterator.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Iterator<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `rewind`, `seek`, and `next` are never used
[INFO] [stdout]   --> src/iterator.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Iterator<'_> {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] 15 |     // 回到迭代器的起点
[INFO] [stdout] 16 |     fn rewind(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn seek(&self, key: Vec<u8>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn next(&self) -> Option<(Bytes, Bytes)> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/db.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.56s
[INFO] running `Command { std: "docker" "inspect" "c0e4a8f1d344768e1a87fb23a919de05e42f8ee4ac1ef51b74eceb2376c05de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0e4a8f1d344768e1a87fb23a919de05e42f8ee4ac1ef51b74eceb2376c05de1", kill_on_drop: false }`
[INFO] [stdout] c0e4a8f1d344768e1a87fb23a919de05e42f8ee4ac1ef51b74eceb2376c05de1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7db5b55a1561948c9b6226ff68b65f025c0a05de34227234063214013ec8d434
[INFO] running `Command { std: "docker" "start" "-a" "7db5b55a1561948c9b6226ff68b65f025c0a05de34227234063214013ec8d434", kill_on_drop: false }`
[INFO] [stdout] warning: struct `EngineConfig` is never constructed
[INFO] [stdout]  --> src/config.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct EngineConfig {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `validate` is never used
[INFO] [stdout]   --> src/config.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl EngineConfig {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 21 |     pub fn validate(&self) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IOConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct IOConfig {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IteratorConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct IteratorConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DATA_FILE_NAME_SUFFIX` is never used
[INFO] [stdout]   --> src/data/data_file.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const DATA_FILE_NAME_SUFFIX: &str = "data";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INITIAL_FILE_ID` is never used
[INFO] [stdout]   --> src/data/data_file.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const INITIAL_FILE_ID: u32 = 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataFile` is never constructed
[INFO] [stdout]   --> src/data/data_file.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct DataFile {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/data/data_file.rs:26:12
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl DataFile {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  26 |     pub fn new(dir_path: &PathBuf, file_id: u32) -> Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  41 |     pub fn read(&self, offset: u64) -> Result<LogRecord> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn write(&self, log_record: LogRecord) -> Result<u64> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn get_write_offset(&self) -> u64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn set_write_offset(&self, offset: u64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn get_file_id(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogRecordPos` is never constructed
[INFO] [stdout]  --> src/data/log_record.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct LogRecordPos {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogRecordType` is never used
[INFO] [stdout]   --> src/data/log_record.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum LogRecordType {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]   --> src/data/log_record.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl LogRecordType {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 20 |     pub fn from_u8(v: u8) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogRecord` is never constructed
[INFO] [stdout]   --> src/data/log_record.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct LogRecord {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `encode`, `get_crc`, `encode_length`, and `encode_without_crc` are never used
[INFO] [stdout]   --> src/data/log_record.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl LogRecord {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn get_crc(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn encode_length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn encode_without_crc(&self) -> BytesMut {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_log_record_header_size` is never used
[INFO] [stdout]   --> src/data/log_record.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn max_log_record_header_size() -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Engine` is never constructed
[INFO] [stdout]   --> src/db.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Engine {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/db.rs:27:12
[INFO] [stdout]     |
[INFO] [stdout]  26 | impl Engine {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  27 |     pub fn open(opts: EngineConfig) -> Result<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn get(&self, key: Bytes) -> Result<Bytes> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn put(&self, key: Bytes, value: Bytes) -> Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     pub fn delete(&self, key: Bytes) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn list_keys(&self) -> Result<Vec<Bytes>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bitcask-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Errors` is never used
[INFO] [stdout]  --> src/errors.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Errors {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/errors.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub type Result<T> = result::Result<T, Errors>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IOManager` is never used
[INFO] [stdout]  --> src/fio/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait IOManager: Send + Sync {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_io_manager` is never used
[INFO] [stdout]   --> src/fio/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn new_io_manager(file_path: PathBuf) -> Result<impl IOManager> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EngineIO` is never constructed
[INFO] [stdout]   --> src/fio/db_io.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct EngineIO {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `init`, `get`, `put`, and `sync` are never used
[INFO] [stdout]    --> src/fio/db_io.rs:29:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl EngineIO {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  29 |     pub fn new(io_config: IOConfig) -> Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  44 |     pub fn init(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get(&self, log_record_pos: LogRecordPos) -> Result<LogRecord> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     pub fn put(&self, log_record: LogRecord) -> Result<LogRecordPos> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileIO` is never constructed
[INFO] [stdout]   --> src/fio/file_io.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct FileIO {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/fio/file_io.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl FileIO {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn new(file_path: PathBuf) -> Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Indexer` is never used
[INFO] [stdout]  --> src/inidex/mod.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Indexer: Send + Sync {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_indexer` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn new_indexer(index_type: IndexType) -> impl Indexer {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IndexType` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum IndexType {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IndexIterator` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub trait IndexIterator: Send + Sync {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTree` is never constructed
[INFO] [stdout]   --> src/inidex/btree.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct BTree {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/inidex/btree.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BTree {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 21 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTreeIterator` is never constructed
[INFO] [stdout]    --> src/inidex/btree.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct BTreeIterator {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Iterator` is never constructed
[INFO] [stdout]  --> src/iterator.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Iterator<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `rewind`, `seek`, and `next` are never used
[INFO] [stdout]   --> src/iterator.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Iterator<'_> {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] 15 |     // 回到迭代器的起点
[INFO] [stdout] 16 |     fn rewind(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn seek(&self, key: Vec<u8>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn next(&self) -> Option<(Bytes, Bytes)> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/db.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EngineConfig` is never constructed
[INFO] [stdout]  --> src/config.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct EngineConfig {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `validate` is never used
[INFO] [stdout]   --> src/config.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl EngineConfig {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 21 |     pub fn validate(&self) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IOConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct IOConfig {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IteratorConfig` is never constructed
[INFO] [stdout]   --> src/config.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct IteratorConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DATA_FILE_NAME_SUFFIX` is never used
[INFO] [stdout]   --> src/data/data_file.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const DATA_FILE_NAME_SUFFIX: &str = "data";
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `INITIAL_FILE_ID` is never used
[INFO] [stdout]   --> src/data/data_file.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub const INITIAL_FILE_ID: u32 = 0;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DataFile` is never constructed
[INFO] [stdout]   --> src/data/data_file.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct DataFile {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/data/data_file.rs:26:12
[INFO] [stdout]     |
[INFO] [stdout]  25 | impl DataFile {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  26 |     pub fn new(dir_path: &PathBuf, file_id: u32) -> Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  41 |     pub fn read(&self, offset: u64) -> Result<LogRecord> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     pub fn write(&self, log_record: LogRecord) -> Result<u64> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub fn get_write_offset(&self) -> u64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     pub fn set_write_offset(&self, offset: u64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn get_file_id(&self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogRecordType` is never used
[INFO] [stdout]   --> src/data/log_record.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum LogRecordType {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]   --> src/data/log_record.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl LogRecordType {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 20 |     pub fn from_u8(v: u8) -> Self {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogRecord` is never constructed
[INFO] [stdout]   --> src/data/log_record.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct LogRecord {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `encode`, `get_crc`, `encode_length`, and `encode_without_crc` are never used
[INFO] [stdout]   --> src/data/log_record.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl LogRecord {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn get_crc(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn encode_length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn encode_without_crc(&self) -> BytesMut {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_log_record_header_size` is never used
[INFO] [stdout]   --> src/data/log_record.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub fn max_log_record_header_size() -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Engine` is never constructed
[INFO] [stdout]   --> src/db.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Engine {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/db.rs:27:12
[INFO] [stdout]     |
[INFO] [stdout]  26 | impl Engine {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  27 |     pub fn open(opts: EngineConfig) -> Result<Self> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn get(&self, key: Bytes) -> Result<Bytes> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn put(&self, key: Bytes, value: Bytes) -> Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     pub fn delete(&self, key: Bytes) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn list_keys(&self) -> Result<Vec<Bytes>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Errors` is never used
[INFO] [stdout]  --> src/errors.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Errors {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/errors.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub type Result<T> = result::Result<T, Errors>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IOManager` is never used
[INFO] [stdout]  --> src/fio/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait IOManager: Send + Sync {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_io_manager` is never used
[INFO] [stdout]   --> src/fio/mod.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn new_io_manager(file_path: PathBuf) -> Result<impl IOManager> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EngineIO` is never constructed
[INFO] [stdout]   --> src/fio/db_io.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct EngineIO {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `init`, `get`, `put`, and `sync` are never used
[INFO] [stdout]    --> src/fio/db_io.rs:29:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl EngineIO {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout]  29 |     pub fn new(io_config: IOConfig) -> Result<Self> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  44 |     pub fn init(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get(&self, log_record_pos: LogRecordPos) -> Result<LogRecord> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 |     pub fn put(&self, log_record: LogRecord) -> Result<LogRecordPos> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 195 |     pub fn sync(&self) -> Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileIO` is never constructed
[INFO] [stdout]   --> src/fio/file_io.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct FileIO {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/fio/file_io.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl FileIO {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 27 |     pub fn new(file_path: PathBuf) -> Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `init`, `delete`, `list_keys`, and `iterator` are never used
[INFO] [stdout]   --> src/inidex/mod.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub trait Indexer: Send + Sync {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout]  9 |     // 初始化构建索引
[INFO] [stdout] 10 |     fn init(&self, dir_path: &PathBuf) -> Result<()>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn delete(&self, key: Vec<u8>) -> bool;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn list_keys(&self) -> Result<Vec<Bytes>>;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn iterator(&self, config: IteratorConfig) -> Box<dyn IndexIterator>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_indexer` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn new_indexer(index_type: IndexType) -> impl Indexer {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `IndexType` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub enum IndexType {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IndexIterator` is never used
[INFO] [stdout]   --> src/inidex/mod.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub trait IndexIterator: Send + Sync {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BTreeIterator` is never constructed
[INFO] [stdout]    --> src/inidex/btree.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub struct BTreeIterator {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Iterator` is never constructed
[INFO] [stdout]  --> src/iterator.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Iterator<'a> {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `rewind`, `seek`, and `next` are never used
[INFO] [stdout]   --> src/iterator.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Iterator<'_> {
[INFO] [stdout]    | ----------------- methods in this implementation
[INFO] [stdout] 15 |     // 回到迭代器的起点
[INFO] [stdout] 16 |     fn rewind(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn seek(&self, key: Vec<u8>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn next(&self) -> Option<(Bytes, Bytes)> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/db.rs:117:17
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter(&self) -> Iterator<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "7db5b55a1561948c9b6226ff68b65f025c0a05de34227234063214013ec8d434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db5b55a1561948c9b6226ff68b65f025c0a05de34227234063214013ec8d434", kill_on_drop: false }`
[INFO] [stdout] 7db5b55a1561948c9b6226ff68b65f025c0a05de34227234063214013ec8d434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6492352f6f0983f9d172aa4cd56523f974570ebab64fa5b9f11ee4955512978
[INFO] running `Command { std: "docker" "start" "-a" "a6492352f6f0983f9d172aa4cd56523f974570ebab64fa5b9f11ee4955512978", kill_on_drop: false }`
[INFO] [stderr] warning: struct `EngineConfig` is never constructed
[INFO] [stderr]  --> src/config.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct EngineConfig {
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `validate` is never used
[INFO] [stderr]   --> src/config.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl EngineConfig {
[INFO] [stderr]    | ----------------- method in this implementation
[INFO] [stderr] 21 |     pub fn validate(&self) -> Result<()> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `IOConfig` is never constructed
[INFO] [stderr]   --> src/config.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct IOConfig {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `IteratorConfig` is never constructed
[INFO] [stderr]   --> src/config.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub struct IteratorConfig {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `DATA_FILE_NAME_SUFFIX` is never used
[INFO] [stderr]   --> src/data/data_file.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const DATA_FILE_NAME_SUFFIX: &str = "data";
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `INITIAL_FILE_ID` is never used
[INFO] [stderr]   --> src/data/data_file.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const INITIAL_FILE_ID: u32 = 0;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DataFile` is never constructed
[INFO] [stderr]   --> src/data/data_file.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct DataFile {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/data/data_file.rs:26:12
[INFO] [stderr]     |
[INFO] [stderr]  25 | impl DataFile {
[INFO] [stderr]     | ------------- associated items in this implementation
[INFO] [stderr]  26 |     pub fn new(dir_path: &PathBuf, file_id: u32) -> Result<Self> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr]  41 |     pub fn read(&self, offset: u64) -> Result<LogRecord> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr]  85 |     pub fn write(&self, log_record: LogRecord) -> Result<u64> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  99 |     pub fn sync(&self) -> Result<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     pub fn get_write_offset(&self) -> u64 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     pub fn set_write_offset(&self, offset: u64) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 113 |     pub fn get_file_id(&self) -> u32 {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LogRecordPos` is never constructed
[INFO] [stderr]  --> src/data/log_record.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct LogRecordPos {
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `LogRecordType` is never used
[INFO] [stderr]   --> src/data/log_record.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum LogRecordType {
[INFO] [stderr]    |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_u8` is never used
[INFO] [stderr]   --> src/data/log_record.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl LogRecordType {
[INFO] [stderr]    | ------------------ associated function in this implementation
[INFO] [stderr] 20 |     pub fn from_u8(v: u8) -> Self {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LogRecord` is never constructed
[INFO] [stderr]   --> src/data/log_record.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct LogRecord {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `encode`, `get_crc`, `encode_length`, and `encode_without_crc` are never used
[INFO] [stderr]   --> src/data/log_record.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | impl LogRecord {
[INFO] [stderr]    | -------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 39 |     pub fn encode(&self) -> Vec<u8> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     pub fn get_crc(&self) -> u32 {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 |     fn encode_length(&self) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     fn encode_without_crc(&self) -> BytesMut {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `max_log_record_header_size` is never used
[INFO] [stderr]   --> src/data/log_record.rs:89:8
[INFO] [stderr]    |
[INFO] [stderr] 89 | pub fn max_log_record_header_size() -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Engine` is never constructed
[INFO] [stderr]   --> src/db.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Engine {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/db.rs:27:12
[INFO] [stderr]     |
[INFO] [stderr]  26 | impl Engine {
[INFO] [stderr]     | ----------- associated items in this implementation
[INFO] [stderr]  27 |     pub fn open(opts: EngineConfig) -> Result<Self> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr]  49 |     pub fn get(&self, key: Bytes) -> Result<Bytes> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr]  67 |     pub fn put(&self, key: Bytes, value: Bytes) -> Result<()> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr]  89 |     pub fn delete(&self, key: Bytes) -> Result<()> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     pub fn sync(&self) -> Result<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 127 |     pub fn list_keys(&self) -> Result<Vec<Bytes>> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Errors` is never used
[INFO] [stderr]  --> src/errors.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub enum Errors {
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Result` is never used
[INFO] [stderr]   --> src/errors.rs:59:10
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub type Result<T> = result::Result<T, Errors>;
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `IOManager` is never used
[INFO] [stderr]  --> src/fio/mod.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub trait IOManager: Send + Sync {
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `new_io_manager` is never used
[INFO] [stderr]   --> src/fio/mod.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn new_io_manager(file_path: PathBuf) -> Result<impl IOManager> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `EngineIO` is never constructed
[INFO] [stderr]   --> src/fio/db_io.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct EngineIO {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `init`, `get`, `put`, and `sync` are never used
[INFO] [stderr]    --> src/fio/db_io.rs:29:12
[INFO] [stderr]     |
[INFO] [stderr]  28 | impl EngineIO {
[INFO] [stderr]     | ------------- associated items in this implementation
[INFO] [stderr]  29 |     pub fn new(io_config: IOConfig) -> Result<Self> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr]  44 |     pub fn init(&self) -> Result<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 121 |     pub fn get(&self, log_record_pos: LogRecordPos) -> Result<LogRecord> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 151 |     pub fn put(&self, log_record: LogRecord) -> Result<LogRecordPos> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 195 |     pub fn sync(&self) -> Result<()> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FileIO` is never constructed
[INFO] [stderr]   --> src/fio/file_io.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct FileIO {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/fio/file_io.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl FileIO {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 27 |     pub fn new(file_path: PathBuf) -> Result<Self> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Indexer` is never used
[INFO] [stderr]  --> src/inidex/mod.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub trait Indexer: Send + Sync {
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `new_indexer` is never used
[INFO] [stderr]   --> src/inidex/mod.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn new_indexer(index_type: IndexType) -> impl Indexer {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `IndexType` is never used
[INFO] [stderr]   --> src/inidex/mod.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub enum IndexType {
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `IndexIterator` is never used
[INFO] [stderr]   --> src/inidex/mod.rs:45:11
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub trait IndexIterator: Send + Sync {
[INFO] [stderr]    |           ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BTree` is never constructed
[INFO] [stderr]   --> src/inidex/btree.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct BTree {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/inidex/btree.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl BTree {
[INFO] [stderr]    | ---------- associated function in this implementation
[INFO] [stderr] 21 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BTreeIterator` is never constructed
[INFO] [stderr]    --> src/inidex/btree.rs:138:12
[INFO] [stderr]     |
[INFO] [stderr] 138 | pub struct BTreeIterator {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Iterator` is never constructed
[INFO] [stderr]  --> src/iterator.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Iterator<'a> {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `rewind`, `seek`, and `next` are never used
[INFO] [stderr]   --> src/iterator.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Iterator<'_> {
[INFO] [stderr]    | ----------------- methods in this implementation
[INFO] [stderr] 15 |     // 回到迭代器的起点
[INFO] [stderr] 16 |     fn rewind(&self) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     fn seek(&self, key: Vec<u8>) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     fn next(&self) -> Option<(Bytes, Bytes)> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/db.rs:117:17
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn iter(&self) -> Iterator {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn iter(&self) -> Iterator<'_> {
[INFO] [stderr]     |                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: methods `init`, `delete`, `list_keys`, and `iterator` are never used
[INFO] [stderr]   --> src/inidex/mod.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr]  8 | pub trait Indexer: Send + Sync {
[INFO] [stderr]    |           ------- methods in this trait
[INFO] [stderr]  9 |     // 初始化构建索引
[INFO] [stderr] 10 |     fn init(&self, dir_path: &PathBuf) -> Result<()>;
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 19 |     fn delete(&self, key: Vec<u8>) -> bool;
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     fn list_keys(&self) -> Result<Vec<Bytes>>;
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     fn iterator(&self, config: IteratorConfig) -> Box<dyn IndexIterator>;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `bitcask-rs` (lib) generated 34 warnings (run `cargo fix --lib -p bitcask-rs` to apply 1 suggestion)
[INFO] [stderr] warning: `bitcask-rs` (lib test) generated 31 warnings (30 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bitcask_rs-3516d21764e15453)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bitcask_rs
[INFO] [stdout] running 1 test
[INFO] [stdout] test inidex::btree::tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6492352f6f0983f9d172aa4cd56523f974570ebab64fa5b9f11ee4955512978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6492352f6f0983f9d172aa4cd56523f974570ebab64fa5b9f11ee4955512978", kill_on_drop: false }`
[INFO] [stdout] a6492352f6f0983f9d172aa4cd56523f974570ebab64fa5b9f11ee4955512978
