[INFO] cloning repository https://github.com/cfeitong/cft-leveldb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfeitong/cft-leveldb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-leveldb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-leveldb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c9c30c9bf5cc68c3fbaf1f549b87f37d0efe78b
[INFO] testing cfeitong/cft-leveldb against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-leveldb" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cfeitong/cft-leveldb on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cfeitong/cft-leveldb
[INFO] finished tweaking git repo https://github.com/cfeitong/cft-leveldb
[INFO] tweaked toml for git repo https://github.com/cfeitong/cft-leveldb written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cfeitong/cft-leveldb 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-attributes v0.1.12
[INFO] [stderr]   Downloaded mimalloc v0.1.24
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.20
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[INFO] [stdout] 50ef3d25fdb46cb9e46d460038685baf3c255e38ee1f36cc3c8900fff6ab84b4
[INFO] running `Command { std: "docker" "start" "-a" "50ef3d25fdb46cb9e46d460038685baf3c255e38ee1f36cc3c8900fff6ab84b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50ef3d25fdb46cb9e46d460038685baf3c255e38ee1f36cc3c8900fff6ab84b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50ef3d25fdb46cb9e46d460038685baf3c255e38ee1f36cc3c8900fff6ab84b4", kill_on_drop: false }`
[INFO] [stdout] 50ef3d25fdb46cb9e46d460038685baf3c255e38ee1f36cc3c8900fff6ab84b4
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[INFO] [stdout] 6dca2471a3932e3595daefcaba01b420c1c3906840ac0421accfebb257c96436
[INFO] running `Command { std: "docker" "start" "-a" "6dca2471a3932e3595daefcaba01b420c1c3906840ac0421accfebb257c96436", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.20
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
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[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling memmap2 v0.2.1
[INFO] [stderr]    Compiling mimalloc v0.1.24
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tracing-attributes v0.1.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling tracing v0.1.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling futures-executor v0.3.13
[INFO] [stderr]    Compiling futures v0.3.13
[INFO] [stderr]    Compiling cft-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `contains` and `remove` are never used
[INFO] [stdout]   --> src/mem_table.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl MemTable {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub async fn contains(&self, key: &Bytes) -> bool {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub async fn remove(&self, key: &Bytes) -> Option<Bytes> {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESTART_THRESHOLD` is never used
[INFO] [stdout]  --> src/sorted_stable.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const RESTART_THRESHOLD: usize = 16;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockHandle` is never constructed
[INFO] [stdout]   --> src/sorted_stable.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct BlockHandle {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockBuilder` is never constructed
[INFO] [stdout]   --> src/sorted_stable.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BlockBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `build` are never used
[INFO] [stdout]   --> src/sorted_stable.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BlockBuilder {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn add(&mut self, key: Bytes, value: Bytes) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn build(mut self) -> Bytes {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shared_prefix_len` is never used
[INFO] [stdout]   --> src/sorted_stable.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn shared_prefix_len(key1: &Bytes, key2: &Bytes) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `open_sstable` is never used
[INFO] [stdout]   --> src/vfs.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Vfs {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub async fn open_sstable(&self, level: usize) -> Result<VFile> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_at`, `read_exact`, and `sync` are never used
[INFO] [stdout]    --> src/vfs.rs:91:18
[INFO] [stdout]     |
[INFO] [stdout] 83  | impl VFile {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91  |     pub async fn read_at(&self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     pub async fn read_exact(&self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub async fn sync(&self) -> Result<()> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_at` and `sync` are never used
[INFO] [stdout]    --> src/vfs.rs:135:14
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl VFileInner {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     async fn read_at(&mut self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     async fn sync(&self) -> Result<()> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_inner` is never used
[INFO] [stdout]   --> src/wal.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl WalFileWriter {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 73 |     /// into inner vfile
[INFO] [stdout] 74 |     pub fn into_inner(self) -> VFile {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WalFileReader` is never constructed
[INFO] [stdout]    --> src/wal.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct WalFileReader {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `open`, `read_record`, `into_record_stream`, `read_data`, and `into_data_stream` are never used
[INFO] [stdout]    --> src/wal.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl WalFileReader {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 151 |     pub async fn new(file: VFile) -> Result<Self> {
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub async fn open(vfs: Vfs) -> Result<Self> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     async fn read_record(&mut self) -> Result<Option<Record>> {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn into_record_stream(self) -> impl Stream<Item = Result<Record>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub async fn read_data(&mut self) -> Result<Option<Bytes>> {
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     pub fn into_data_stream(self) -> impl Stream<Item = Result<Bytes>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_rest_records` is never used
[INFO] [stdout]    --> src/wal.rs:232:10
[INFO] [stdout]     |
[INFO] [stdout] 232 | async fn read_rest_records(reader: &mut WalFileReader) -> Result<Vec<Record>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]    --> src/wal.rs:271:8
[INFO] [stdout]     |
[INFO] [stdout] 261 | impl RecordType {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 271 |     fn from_u8(ty: u8) -> Result<Self> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Record` is never constructed
[INFO] [stdout]    --> src/wal.rs:283:12
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub struct Record {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]    --> src/wal.rs:291:8
[INFO] [stdout]     |
[INFO] [stdout] 290 | impl Record {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 291 |     fn is_valid(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vfs` is never read
[INFO] [stdout]   --> src/db.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Db {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 32 |     vfs: Vfs,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.42s
[INFO] running `Command { std: "docker" "inspect" "6dca2471a3932e3595daefcaba01b420c1c3906840ac0421accfebb257c96436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dca2471a3932e3595daefcaba01b420c1c3906840ac0421accfebb257c96436", kill_on_drop: false }`
[INFO] [stdout] 6dca2471a3932e3595daefcaba01b420c1c3906840ac0421accfebb257c96436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be115ff6a8d4d3f47ade4df5746729ba5b31c81cf1b521e6d5e6e9dbbf4388c8
[INFO] running `Command { std: "docker" "start" "-a" "be115ff6a8d4d3f47ade4df5746729ba5b31c81cf1b521e6d5e6e9dbbf4388c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stdout] warning: methods `contains` and `remove` are never used
[INFO] [stdout]   --> src/mem_table.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl MemTable {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub async fn contains(&self, key: &Bytes) -> bool {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub async fn remove(&self, key: &Bytes) -> Option<Bytes> {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESTART_THRESHOLD` is never used
[INFO] [stdout]  --> src/sorted_stable.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const RESTART_THRESHOLD: usize = 16;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockHandle` is never constructed
[INFO] [stdout]   --> src/sorted_stable.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct BlockHandle {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockBuilder` is never constructed
[INFO] [stdout]   --> src/sorted_stable.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BlockBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `build` are never used
[INFO] [stdout]   --> src/sorted_stable.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BlockBuilder {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn add(&mut self, key: Bytes, value: Bytes) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn build(mut self) -> Bytes {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shared_prefix_len` is never used
[INFO] [stdout]   --> src/sorted_stable.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn shared_prefix_len(key1: &Bytes, key2: &Bytes) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `open_sstable` is never used
[INFO] [stdout]   --> src/vfs.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Vfs {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub async fn open_sstable(&self, level: usize) -> Result<VFile> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_at`, `read_exact`, and `sync` are never used
[INFO] [stdout]    --> src/vfs.rs:91:18
[INFO] [stdout]     |
[INFO] [stdout] 83  | impl VFile {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91  |     pub async fn read_at(&self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     pub async fn read_exact(&self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stdout]     |                  ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub async fn sync(&self) -> Result<()> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_at` and `sync` are never used
[INFO] [stdout]    --> src/vfs.rs:135:14
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl VFileInner {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     async fn read_at(&mut self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     async fn sync(&self) -> Result<()> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_inner` is never used
[INFO] [stdout]   --> src/wal.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl WalFileWriter {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 73 |     /// into inner vfile
[INFO] [stdout] 74 |     pub fn into_inner(self) -> VFile {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WalFileReader` is never constructed
[INFO] [stdout]    --> src/wal.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 | pub struct WalFileReader {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `open`, `read_record`, `into_record_stream`, `read_data`, and `into_data_stream` are never used
[INFO] [stdout]    --> src/wal.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl WalFileReader {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 151 |     pub async fn new(file: VFile) -> Result<Self> {
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub async fn open(vfs: Vfs) -> Result<Self> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     async fn read_record(&mut self) -> Result<Option<Record>> {
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn into_record_stream(self) -> impl Stream<Item = Result<Record>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub async fn read_data(&mut self) -> Result<Option<Bytes>> {
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     pub fn into_data_stream(self) -> impl Stream<Item = Result<Bytes>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_rest_records` is never used
[INFO] [stdout]    --> src/wal.rs:232:10
[INFO] [stdout]     |
[INFO] [stdout] 232 | async fn read_rest_records(reader: &mut WalFileReader) -> Result<Vec<Record>> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_u8` is never used
[INFO] [stdout]    --> src/wal.rs:271:8
[INFO] [stdout]     |
[INFO] [stdout] 261 | impl RecordType {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 271 |     fn from_u8(ty: u8) -> Result<Self> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Record` is never constructed
[INFO] [stdout]    --> src/wal.rs:283:12
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub struct Record {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]    --> src/wal.rs:291:8
[INFO] [stdout]     |
[INFO] [stdout] 290 | impl Record {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] 291 |     fn is_valid(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vfs` is never read
[INFO] [stdout]   --> src/db.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Db {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 32 |     vfs: Vfs,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling cft-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `contains` and `remove` are never used
[INFO] [stdout]   --> src/mem_table.rs:32:18
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl MemTable {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub async fn contains(&self, key: &Bytes) -> bool {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub async fn remove(&self, key: &Bytes) -> Option<Bytes> {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RESTART_THRESHOLD` is never used
[INFO] [stdout]  --> src/sorted_stable.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const RESTART_THRESHOLD: usize = 16;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockHandle` is never constructed
[INFO] [stdout]   --> src/sorted_stable.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct BlockHandle {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockBuilder` is never constructed
[INFO] [stdout]   --> src/sorted_stable.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct BlockBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `build` are never used
[INFO] [stdout]   --> src/sorted_stable.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl BlockBuilder {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn add(&mut self, key: Bytes, value: Bytes) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn build(mut self) -> Bytes {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shared_prefix_len` is never used
[INFO] [stdout]   --> src/sorted_stable.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn shared_prefix_len(key1: &Bytes, key2: &Bytes) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `open_sstable` is never used
[INFO] [stdout]   --> src/vfs.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Vfs {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub async fn open_sstable(&self, level: usize) -> Result<VFile> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_at` and `sync` are never used
[INFO] [stdout]    --> src/vfs.rs:91:18
[INFO] [stdout]     |
[INFO] [stdout] 83  | impl VFile {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91  |     pub async fn read_at(&self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     pub async fn sync(&self) -> Result<()> {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read_at` and `sync` are never used
[INFO] [stdout]    --> src/vfs.rs:135:14
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl VFileInner {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 135 |     async fn read_at(&mut self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stdout]     |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     async fn sync(&self) -> Result<()> {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_inner` is never used
[INFO] [stdout]   --> src/wal.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl WalFileWriter {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 73 |     /// into inner vfile
[INFO] [stdout] 74 |     pub fn into_inner(self) -> VFile {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `into_record_stream` and `into_data_stream` are never used
[INFO] [stdout]    --> src/wal.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl WalFileReader {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn into_record_stream(self) -> impl Stream<Item = Result<Record>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     pub fn into_data_stream(self) -> impl Stream<Item = Result<Bytes>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vfs` is never read
[INFO] [stdout]   --> src/db.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct Db {
[INFO] [stdout]    |            -- field in this struct
[INFO] [stdout] 32 |     vfs: Vfs,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.81s
[INFO] running `Command { std: "docker" "inspect" "be115ff6a8d4d3f47ade4df5746729ba5b31c81cf1b521e6d5e6e9dbbf4388c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be115ff6a8d4d3f47ade4df5746729ba5b31c81cf1b521e6d5e6e9dbbf4388c8", kill_on_drop: false }`
[INFO] [stdout] be115ff6a8d4d3f47ade4df5746729ba5b31c81cf1b521e6d5e6e9dbbf4388c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 928d4d3d19ce8cd60d0f8d7b007cd60f605469703431d86229435d6e3aa0cedd
[INFO] running `Command { std: "docker" "start" "-a" "928d4d3d19ce8cd60d0f8d7b007cd60f605469703431d86229435d6e3aa0cedd", kill_on_drop: false }`
[INFO] [stderr] warning: methods `contains` and `remove` are never used
[INFO] [stderr]   --> src/mem_table.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl MemTable {
[INFO] [stderr]    | ------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub async fn contains(&self, key: &Bytes) -> bool {
[INFO] [stderr]    |                  ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 37 |     pub async fn remove(&self, key: &Bytes) -> Option<Bytes> {
[INFO] [stderr]    |                  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RESTART_THRESHOLD` is never used
[INFO] [stderr]  --> src/sorted_stable.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const RESTART_THRESHOLD: usize = 16;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BlockHandle` is never constructed
[INFO] [stderr]   --> src/sorted_stable.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct BlockHandle {}
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BlockBuilder` is never constructed
[INFO] [stderr]   --> src/sorted_stable.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct BlockBuilder {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add`, and `build` are never used
[INFO] [stderr]   --> src/sorted_stable.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl BlockBuilder {
[INFO] [stderr]    | ----------------- associated items in this implementation
[INFO] [stderr] 21 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 30 |     fn add(&mut self, key: Bytes, value: Bytes) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     fn build(mut self) -> Bytes {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `shared_prefix_len` is never used
[INFO] [stderr]   --> src/sorted_stable.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn shared_prefix_len(key1: &Bytes, key2: &Bytes) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `open_sstable` is never used
[INFO] [stderr]   --> src/vfs.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 44 | impl Vfs {
[INFO] [stderr]    | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub async fn open_sstable(&self, level: usize) -> Result<VFile> {
[INFO] [stderr]    |                  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `read_at`, `read_exact`, and `sync` are never used
[INFO] [stderr]    --> src/vfs.rs:91:18
[INFO] [stderr]     |
[INFO] [stderr] 83  | impl VFile {
[INFO] [stderr]     | ---------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 91  |     pub async fn read_at(&self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 96  |     pub async fn read_exact(&self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stderr]     |                  ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 101 |     pub async fn sync(&self) -> Result<()> {
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `read_at` and `sync` are never used
[INFO] [stderr]    --> src/vfs.rs:135:14
[INFO] [stderr]     |
[INFO] [stderr] 119 | impl VFileInner {
[INFO] [stderr]     | --------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 135 |     async fn read_at(&mut self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 142 |     async fn sync(&self) -> Result<()> {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `into_inner` is never used
[INFO] [stderr]   --> src/wal.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr] 72 | impl WalFileWriter {
[INFO] [stderr]    | ------------------ method in this implementation
[INFO] [stderr] 73 |     /// into inner vfile
[INFO] [stderr] 74 |     pub fn into_inner(self) -> VFile {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `WalFileReader` is never constructed
[INFO] [stderr]    --> src/wal.rs:146:12
[INFO] [stderr]     |
[INFO] [stderr] 146 | pub struct WalFileReader {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `open`, `read_record`, `into_record_stream`, `read_data`, and `into_data_stream` are never used
[INFO] [stderr]    --> src/wal.rs:151:18
[INFO] [stderr]     |
[INFO] [stderr] 150 | impl WalFileReader {
[INFO] [stderr]     | ------------------ associated items in this implementation
[INFO] [stderr] 151 |     pub async fn new(file: VFile) -> Result<Self> {
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] ...
[INFO] [stderr] 155 |     pub async fn open(vfs: Vfs) -> Result<Self> {
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 161 |     async fn read_record(&mut self) -> Result<Option<Record>> {
[INFO] [stderr]     |              ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 193 |     fn into_record_stream(self) -> impl Stream<Item = Result<Record>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 200 |     pub async fn read_data(&mut self) -> Result<Option<Bytes>> {
[INFO] [stderr]     |                  ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 224 |     pub fn into_data_stream(self) -> impl Stream<Item = Result<Bytes>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_rest_records` is never used
[INFO] [stderr]    --> src/wal.rs:232:10
[INFO] [stderr]     |
[INFO] [stderr] 232 | async fn read_rest_records(reader: &mut WalFileReader) -> Result<Vec<Record>> {
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_u8` is never used
[INFO] [stderr]    --> src/wal.rs:271:8
[INFO] [stderr]     |
[INFO] [stderr] 261 | impl RecordType {
[INFO] [stderr]     | --------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 271 |     fn from_u8(ty: u8) -> Result<Self> {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Record` is never constructed
[INFO] [stderr]    --> src/wal.rs:283:12
[INFO] [stderr]     |
[INFO] [stderr] 283 | pub struct Record {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_valid` is never used
[INFO] [stderr]    --> src/wal.rs:291:8
[INFO] [stderr]     |
[INFO] [stderr] 290 | impl Record {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] 291 |     fn is_valid(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `vfs` is never read
[INFO] [stderr]   --> src/db.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub struct Db {
[INFO] [stderr]    |            -- field in this struct
[INFO] [stderr] 32 |     vfs: Vfs,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cft-db` (lib) generated 17 warnings
[INFO] [stderr] warning: methods `read_at` and `sync` are never used
[INFO] [stderr]    --> src/vfs.rs:91:18
[INFO] [stderr]     |
[INFO] [stderr] 83  | impl VFile {
[INFO] [stderr]     | ---------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 91  |     pub async fn read_at(&self, offset: u64, len: usize) -> Result<Vec<u8>> {
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 101 |     pub async fn sync(&self) -> Result<()> {
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `into_record_stream` and `into_data_stream` are never used
[INFO] [stderr]    --> src/wal.rs:193:8
[INFO] [stderr]     |
[INFO] [stderr] 150 | impl WalFileReader {
[INFO] [stderr]     | ------------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 193 |     fn into_record_stream(self) -> impl Stream<Item = Result<Record>> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 224 |     pub fn into_data_stream(self) -> impl Stream<Item = Result<Bytes>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cft-db` (lib test) generated 12 warnings (10 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cft_db-bff9dce344000a99)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test encoding::tests::test_var_u32_le ... ok
[INFO] [stdout] test encoding::tests::test_var_u64_le ... ok
[INFO] [stdout] test wal::tests::test_wal_data_read_write ... ok
[INFO] [stdout] test db::tests::test_db_basic ... FAILED
[INFO] [stdout] test wal::tests::test_wal_data_many_blocks ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- db::tests::test_db_basic stdout ----
[INFO] [stdout] thread 'db::tests::test_db_basic' panicked at 'called `Result::unwrap()` on an `Err` value: VfsError(IoError(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }))', src/db.rs:70:46
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x560963dbefca - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x560963dbefca - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x560963dbefca - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x560963dbefca - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x560963de349f - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x560963dbc015 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x560963dbed95 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x560963dbed95 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x560963dc08ce - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x560963dc0601 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x560963cc8e7b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x560963cc8e7b - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x560963dc0fb4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x560963dc0fb4 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x560963dc0d29 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:582:13
[INFO] [stdout]   15:     0x560963dbf436 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x560963dc0a82 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x560963c1e563 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x560963c1eaa3 - core::result::unwrap_failed::he54eb4b2f125b26f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1687:5
[INFO] [stdout]   19:     0x560963c2de13 - core::result::Result<T,E>::unwrap::hb3f83a95fd3746cf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1089:23
[INFO] [stdout]   20:     0x560963c3a640 - cft_db::db::tests::test_db_basic::{{closure}}::hd5499e3ca6e01740
[INFO] [stdout]                                at /opt/rustwide/workdir/src/db.rs:70:18
[INFO] [stdout]   21:     0x560963c43efb - <core::pin::Pin<P> as core::future::future::Future>::poll::h10ee4cefc67f3881
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/future/future.rs:125:9
[INFO] [stdout]   22:     0x560963c41e84 - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::{{closure}}::h6ef9cf70b84f6fd4
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:184:58
[INFO] [stdout]   23:     0x560963c3fe20 - tokio::coop::with_budget::{{closure}}::h88f45139334444fd
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/coop.rs:121:9
[INFO] [stdout]   24:     0x560963c38c19 - std::thread::local::LocalKey<T>::try_with::hce2adcf33d2b9ca0
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/local.rs:252:16
[INFO] [stdout]   25:     0x560963c3799a - std::thread::local::LocalKey<T>::with::h8e0e24b37ba854ff
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/local.rs:228:9
[INFO] [stdout]   26:     0x560963c40859 - tokio::coop::with_budget::hfdf0d8a70edd92e0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/coop.rs:114:5
[INFO] [stdout]   27:     0x560963c40859 - tokio::coop::budget::h8e95dc4e72136bd0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/coop.rs:98:5
[INFO] [stdout]   28:     0x560963c40859 - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::h0949fdef8f9369c0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:184:35
[INFO] [stdout]   29:     0x560963c43c41 - tokio::runtime::basic_scheduler::enter::{{closure}}::h8136f921148233ca
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:266:29
[INFO] [stdout]   30:     0x560963c2bdf7 - tokio::macros::scoped_tls::ScopedKey<T>::set::h4835c3ae21920687
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/macros/scoped_tls.rs:61:9
[INFO] [stdout]   31:     0x560963c43813 - tokio::runtime::basic_scheduler::enter::h613bf7eaade3e627
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:266:5
[INFO] [stdout]   32:     0x560963c4054b - tokio::runtime::basic_scheduler::Inner<P>::block_on::h51c2a9c4d63df025
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:176:9
[INFO] [stdout]   33:     0x560963c42202 - tokio::runtime::basic_scheduler::InnerGuard<P>::block_on::h9013fb7820d39b8b
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:405:9
[INFO] [stdout]   34:     0x560963c42503 - tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on::h3ff77582ec836362
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/basic_scheduler.rs:136:24
[INFO] [stdout]   35:     0x560963c35a45 - tokio::runtime::Runtime::block_on::h298f31c3b59ba494
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.2.0/src/runtime/mod.rs:450:46
[INFO] [stdout]   36:     0x560963c3a27b - cft_db::db::tests::test_db_basic::h1c7f0576f8683a3b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/db.rs:68:5
[INFO] [stdout]   37:     0x560963c3a1b7 - cft_db::db::tests::test_db_basic::{{closure}}::h21d5e5f4ae9cae9f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/db.rs:68:5
[INFO] [stdout]   38:     0x560963c25695 - core::ops::function::FnOnce::call_once::h2275789bf6027ce0
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   39:     0x560963ccdd4f - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x560963ccdd4f - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   41:     0x560963c9b53c - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   42:     0x560963c9b53c - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x560963ccce26 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   44:     0x560963ccce26 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   45:     0x560963ccce26 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   46:     0x560963ccce26 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   47:     0x560963ccce26 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   48:     0x560963ccce26 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   49:     0x560963ccce26 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   50:     0x560963c95d45 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   51:     0x560963c95d45 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   52:     0x560963c9b281 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   53:     0x560963c9b281 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   54:     0x560963c9b281 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   55:     0x560963c9b281 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   56:     0x560963c9b281 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   57:     0x560963c9b281 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   58:     0x560963c9b281 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   59:     0x560963dc5db5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   60:     0x560963dc5db5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   61:     0x560963dc5db5 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   62:     0x7f8503370b43 - <unknown>
[INFO] [stdout]   63:     0x7f8503401bb4 - __clone
[INFO] [stdout]   64:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     db::tests::test_db_basic
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "928d4d3d19ce8cd60d0f8d7b007cd60f605469703431d86229435d6e3aa0cedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928d4d3d19ce8cd60d0f8d7b007cd60f605469703431d86229435d6e3aa0cedd", kill_on_drop: false }`
[INFO] [stdout] 928d4d3d19ce8cd60d0f8d7b007cd60f605469703431d86229435d6e3aa0cedd
