[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 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfeitong%2Fcft-leveldb" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cfeitong/cft-leveldb on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "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-2-tc1/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" "+1.83.0" "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 tokio v1.2.0
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f50dd26886037cd0fb2089eee4544f20796a919cd4512521e4089b26e2c911c4
[INFO] running `Command { std: "docker" "start" "-a" "f50dd26886037cd0fb2089eee4544f20796a919cd4512521e4089b26e2c911c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f50dd26886037cd0fb2089eee4544f20796a919cd4512521e4089b26e2c911c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f50dd26886037cd0fb2089eee4544f20796a919cd4512521e4089b26e2c911c4", kill_on_drop: false }`
[INFO] [stdout] f50dd26886037cd0fb2089eee4544f20796a919cd4512521e4089b26e2c911c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7dbc4c8d200890ba881ae760671981d97c101e4de205b56fedbddc9aa582a05
[INFO] running `Command { std: "docker" "start" "-a" "d7dbc4c8d200890ba881ae760671981d97c101e4de205b56fedbddc9aa582a05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[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 proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.20
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling memmap2 v0.2.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[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 tokio-macros v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling tracing v0.1.23
[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: method `put_var_u64_le` is never used
[INFO] [stdout]  --> src/encoding.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait BufMutExt: BufMut {
[INFO] [stdout]   |           --------- method in this trait
[INFO] [stdout] 8 |     fn put_var_u32_le(&mut self, n: u32);
[INFO] [stdout] 9 |     fn put_var_u64_le(&mut self, n: u64);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_var_u32_le` and `get_var_u64_le` are never used
[INFO] [stdout]   --> src/encoding.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub trait BytesExt {
[INFO] [stdout]    |           -------- methods in this trait
[INFO] [stdout] 73 |     fn get_var_u32_le(&mut self) -> Option<u32>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 74 |     fn get_var_u64_le(&mut self) -> Option<u64>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] 
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.67s
[INFO] running `Command { std: "docker" "inspect" "d7dbc4c8d200890ba881ae760671981d97c101e4de205b56fedbddc9aa582a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7dbc4c8d200890ba881ae760671981d97c101e4de205b56fedbddc9aa582a05", kill_on_drop: false }`
[INFO] [stdout] d7dbc4c8d200890ba881ae760671981d97c101e4de205b56fedbddc9aa582a05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1bac19b1c004fb339a76e0609b8946c9fc192205343c7cfbad98e63ce7d9fe8
[INFO] running `Command { std: "docker" "start" "-a" "f1bac19b1c004fb339a76e0609b8946c9fc192205343c7cfbad98e63ce7d9fe8", 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: method `put_var_u64_le` is never used
[INFO] [stdout]  --> src/encoding.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait BufMutExt: BufMut {
[INFO] [stdout]   |           --------- method in this trait
[INFO] [stdout] 8 |     fn put_var_u32_le(&mut self, n: u32);
[INFO] [stdout] 9 |     fn put_var_u64_le(&mut self, n: u64);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_var_u32_le` and `get_var_u64_le` are never used
[INFO] [stdout]   --> src/encoding.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub trait BytesExt {
[INFO] [stdout]    |           -------- methods in this trait
[INFO] [stdout] 73 |     fn get_var_u32_le(&mut self) -> Option<u32>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 74 |     fn get_var_u64_le(&mut self) -> Option<u64>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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] 
[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] [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 `len` is never read
[INFO] [stdout]    --> src/wal.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub struct Record {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 284 |     pub crc:  u32,
[INFO] [stdout] 285 |     pub len:  u16,
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.44s
[INFO] running `Command { std: "docker" "inspect" "f1bac19b1c004fb339a76e0609b8946c9fc192205343c7cfbad98e63ce7d9fe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1bac19b1c004fb339a76e0609b8946c9fc192205343c7cfbad98e63ce7d9fe8", kill_on_drop: false }`
[INFO] [stdout] f1bac19b1c004fb339a76e0609b8946c9fc192205343c7cfbad98e63ce7d9fe8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52db334f5b13f000cb9c10bbb88bc6d9135f310d2a371a469195e6aa9f9ca34b
[INFO] running `Command { std: "docker" "start" "-a" "52db334f5b13f000cb9c10bbb88bc6d9135f310d2a371a469195e6aa9f9ca34b", kill_on_drop: false }`
[INFO] [stderr] warning: method `put_var_u64_le` is never used
[INFO] [stderr]  --> src/encoding.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub trait BufMutExt: BufMut {
[INFO] [stderr]   |           --------- method in this trait
[INFO] [stderr] 8 |     fn put_var_u32_le(&mut self, n: u32);
[INFO] [stderr] 9 |     fn put_var_u64_le(&mut self, n: u64);
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `get_var_u32_le` and `get_var_u64_le` are never used
[INFO] [stderr]   --> src/encoding.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub trait BytesExt {
[INFO] [stderr]    |           -------- methods in this trait
[INFO] [stderr] 73 |     fn get_var_u32_le(&mut self) -> Option<u32>;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 74 |     fn get_var_u64_le(&mut self) -> Option<u64>;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[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] 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 19 warnings
[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: 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: field `len` is never read
[INFO] [stderr]    --> src/wal.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 283 | pub struct Record {
[INFO] [stderr]     |            ------ field in this struct
[INFO] [stderr] 284 |     pub crc:  u32,
[INFO] [stderr] 285 |     pub len:  u16,
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cft-db` (lib test) generated 13 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cft_db-814d018d6a845161)
[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 db::tests::test_db_basic ... FAILED
[INFO] [stdout] test wal::tests::test_wal_data_read_write ... ok
[INFO] [stdout] test wal::tests::test_wal_data_many_blocks ... ok
[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 src/db.rs:70:46:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: VfsError(IoError(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5b6985665a4a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5b6985665a4a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5b6985665a4a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5b6985665a4a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5b698568ba43 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5b698568ba43 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x5b69856628f3 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x5b6985665892 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5b6985666cfa - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5b6985666b04 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5b6985580c09 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x5b6985580c09 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x5b6985667398 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x5b6985667398 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5b698566715a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5b6985665f29 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5b6985666dec - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5b69854d62e0 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x5b69854d6726 - core::result::unwrap_failed::hd20b4aa073bda1e2
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1700:5
[INFO] [stdout]   19:     0x5b69854fa84d - core::result::Result<T,E>::unwrap::hdf803300c1ca4f2d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5b69854fa84d - cft_db::db::tests::test_db_basic::{{closure}}::had5c1a46f5950d80
[INFO] [stdout]                                at /opt/rustwide/workdir/src/db.rs:70:18
[INFO] [stdout]   21:     0x5b69854ff3fd - <core::pin::Pin<P> as core::future::future::Future>::poll::hdc8236a53c5614b9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/future/future.rs:123:9
[INFO] [stdout]   22:     0x5b69855047ff - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::{{closure}}::h3ef4a665a6595894
[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:     0x5b69854f6753 - tokio::coop::with_budget::{{closure}}::h1cf420f35730f6dc
[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:     0x5b69854ebeba - std::thread::local::LocalKey<T>::try_with::h10eb90c8dcd10931
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/local.rs:283:12
[INFO] [stdout]   25:     0x5b69854ebcda - std::thread::local::LocalKey<T>::with::hd4aaeb5911dfc705
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/local.rs:260:9
[INFO] [stdout]   26:     0x5b698550335c - tokio::coop::with_budget::hb90e3770fb2668e0
[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:     0x5b698550335c - tokio::coop::budget::heee0353fedc9081b
[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:     0x5b698550335c - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::h32f042456ba9b8c2
[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:     0x5b698550650a - tokio::runtime::basic_scheduler::enter::{{closure}}::h50c75e00460311c1
[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:     0x5b69854f8ce5 - tokio::macros::scoped_tls::ScopedKey<T>::set::hc976182e882ad626
[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:     0x5b69855060f8 - tokio::runtime::basic_scheduler::enter::h70d7847c7c79c23c
[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:     0x5b69855030c3 - tokio::runtime::basic_scheduler::Inner<P>::block_on::hea1d40d93bf88681
[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:     0x5b6985504a55 - tokio::runtime::basic_scheduler::InnerGuard<P>::block_on::h033b9ec6b35f6fc9
[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:     0x5b69855051f0 - tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on::h991e882cb6347f3b
[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:     0x5b698550ccb2 - tokio::runtime::Runtime::block_on::hb05199e2b5121ac0
[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:     0x5b69854fa4d2 - cft_db::db::tests::test_db_basic::h280e000aff678aa7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/db.rs:68:5
[INFO] [stdout]   37:     0x5b69854fa357 - cft_db::db::tests::test_db_basic::{{closure}}::h2ffab5f7ca00b47a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/db.rs:69:29
[INFO] [stdout]   38:     0x5b69854dd706 - core::ops::function::FnOnce::call_once::hbd7702078b5d17d4
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   39:     0x5b69855855cb - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x5b69855855cb - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   41:     0x5b6985584e07 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   42:     0x5b6985584e07 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   43:     0x5b6985584e07 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   44:     0x5b6985584e07 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   45:     0x5b6985584e07 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   46:     0x5b6985584e07 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   47:     0x5b6985584e07 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   48:     0x5b698554a0e4 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   49:     0x5b698554a0e4 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   50:     0x5b698554d7ae - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   51:     0x5b698554d7ae - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   52:     0x5b698554d7ae - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   53:     0x5b698554d7ae - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   54:     0x5b698554d7ae - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   55:     0x5b698554d7ae - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   56:     0x5b698554d7ae - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   57:     0x5b698566bcfb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   58:     0x5b698566bcfb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   59:     0x5b698566bcfb - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   60:     0x78ef0a677ac3 - <unknown>
[INFO] [stdout]   61:     0x78ef0a708a04 - clone
[INFO] [stdout]   62:                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 0.49s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "52db334f5b13f000cb9c10bbb88bc6d9135f310d2a371a469195e6aa9f9ca34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52db334f5b13f000cb9c10bbb88bc6d9135f310d2a371a469195e6aa9f9ca34b", kill_on_drop: false }`
[INFO] [stdout] 52db334f5b13f000cb9c10bbb88bc6d9135f310d2a371a469195e6aa9f9ca34b
