[INFO] cloning repository https://github.com/codejoyan/step_wise_mini_lsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codejoyan/step_wise_mini_lsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodejoyan%2Fstep_wise_mini_lsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodejoyan%2Fstep_wise_mini_lsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ac5054d2fb27789d0a205de3665cd370819a687
[INFO] checking codejoyan/step_wise_mini_lsm against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodejoyan%2Fstep_wise_mini_lsm" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codejoyan/step_wise_mini_lsm
[INFO] finished tweaking git repo https://github.com/codejoyan/step_wise_mini_lsm
[INFO] tweaked toml for git repo https://github.com/codejoyan/step_wise_mini_lsm written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codejoyan/step_wise_mini_lsm on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codejoyan/step_wise_mini_lsm 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] a9b2adc6ae73d5b3004c17caac92d30ecf806fbeabd46533ddd2e7e9c54e82e6
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[INFO] running `Command { std: "docker" "inspect" "a9b2adc6ae73d5b3004c17caac92d30ecf806fbeabd46533ddd2e7e9c54e82e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b2adc6ae73d5b3004c17caac92d30ecf806fbeabd46533ddd2e7e9c54e82e6", kill_on_drop: false }`
[INFO] [stdout] a9b2adc6ae73d5b3004c17caac92d30ecf806fbeabd46533ddd2e7e9c54e82e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf97b487be846f1615296af36f7c095793988e6787c351d053905213067d6feb
[INFO] running `Command { std: "docker" "start" "-a" "cf97b487be846f1615296af36f7c095793988e6787c351d053905213067d6feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling anyhow v1.0.82
[INFO] [stderr]     Checking aliasable v0.1.3
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]     Checking crossbeam-skiplist v0.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling ouroboros_macro v0.18.3
[INFO] [stderr]     Checking ouroboros v0.18.3
[INFO] [stderr]     Checking step_wise_mini_lsm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `LsmStorageState` is never constructed
[INFO] [stdout]   --> src/lsm_storage.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LsmStorageState {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mem_table` and `imm_memtables` are never read
[INFO] [stdout]   --> src/lsm_storage.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LsmStorageState {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 12 |     mem_table: Arc<MemTable>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 13 |     imm_memtables: Vec<Arc<MemTable>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LsmStorageState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `create` is never used
[INFO] [stdout]   --> src/lsm_storage.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl LsmStorageState {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 17 |     fn create() -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block_size`, `target_sst_size`, `num_memtable_limit`, `wal_enabled`, and `serializable` are never read
[INFO] [stdout]   --> src/lsm_storage.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct LsmStorageOptions {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 27 |     block_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     target_sst_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     num_memtable_limit: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     wal_enabled: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 31 |     serializable: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LsmStorageOptions` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MiniLsm` is never constructed
[INFO] [stdout]   --> src/lsm_storage.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct MiniLsm {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get`, `write_batch`, `put`, and `delete` are never used
[INFO] [stdout]   --> src/lsm_storage.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl MiniLsm {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 56 |     pub fn get(&self, key: &[u8]) -> Result<Option<Bytes>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn write_batch<T: AsRef<[u8]>>(&self, batch: &[WriteBatchRecord<T>]) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn put(&self, key: &[u8], value: &[u8]) -> Result<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn delete(&self, key: &[u8]) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LsmStorageInner` is never constructed
[INFO] [stdout]   --> src/lsm_storage.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub(crate) struct LsmStorageInner {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/lsm_storage.rs:81:19
[INFO] [stdout]     |
[INFO] [stdout]  80 | impl LsmStorageInner {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout]  81 |     pub(crate) fn next_sst_id(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn get(&self, key: &[u8]) -> Result<Option<Bytes>> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn freeze_memtable_with_memtable(&self, mem_table: Arc<MemTable>) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn force_freeze_memtable(&self) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn try_freeze(&self, estimated_size: usize) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn write_batch<T: AsRef<[u8]>>(&self, batch: &[WriteBatchRecord<T>]) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn put(&self, key: &[u8], value: &[u8]) -> Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     pub fn delete(&self, key: &[u8]) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/mem_table.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct MemTable {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 23 |     map: Arc<SkipMap<Bytes, Bytes>>,
[INFO] [stdout] 24 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/key.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn as_key_slice(&self) -> KeySlice {
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn as_key_slice(&self) -> KeySlice<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/key.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn as_key_slice(&self) -> KeySlice {
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn as_key_slice(&self) -> KeySlice<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem_table.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn key(&self) -> KeySlice {
[INFO] [stdout]    |            ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |            |
[INFO] [stdout]    |            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn key(&self) -> KeySlice<'_> {
[INFO] [stdout]    |                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `LsmStorageState` is never constructed
[INFO] [stdout]   --> src/lsm_storage.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LsmStorageState {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mem_table` and `imm_memtables` are never read
[INFO] [stdout]   --> src/lsm_storage.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LsmStorageState {
[INFO] [stdout]    |            --------------- fields in this struct
[INFO] [stdout] 12 |     mem_table: Arc<MemTable>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 13 |     imm_memtables: Vec<Arc<MemTable>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LsmStorageState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `create` is never used
[INFO] [stdout]   --> src/lsm_storage.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl LsmStorageState {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 17 |     fn create() -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `block_size`, `target_sst_size`, `num_memtable_limit`, `wal_enabled`, and `serializable` are never read
[INFO] [stdout]   --> src/lsm_storage.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct LsmStorageOptions {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 27 |     block_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     target_sst_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     num_memtable_limit: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     wal_enabled: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 31 |     serializable: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LsmStorageOptions` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MiniLsm` is never constructed
[INFO] [stdout]   --> src/lsm_storage.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub(crate) struct MiniLsm {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get`, `write_batch`, `put`, and `delete` are never used
[INFO] [stdout]   --> src/lsm_storage.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl MiniLsm {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 56 |     pub fn get(&self, key: &[u8]) -> Result<Option<Bytes>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn write_batch<T: AsRef<[u8]>>(&self, batch: &[WriteBatchRecord<T>]) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub fn put(&self, key: &[u8], value: &[u8]) -> Result<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn delete(&self, key: &[u8]) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LsmStorageInner` is never constructed
[INFO] [stdout]   --> src/lsm_storage.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub(crate) struct LsmStorageInner {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/lsm_storage.rs:81:19
[INFO] [stdout]     |
[INFO] [stdout]  80 | impl LsmStorageInner {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout]  81 |     pub(crate) fn next_sst_id(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn get(&self, key: &[u8]) -> Result<Option<Bytes>> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn freeze_memtable_with_memtable(&self, mem_table: Arc<MemTable>) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn force_freeze_memtable(&self) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn try_freeze(&self, estimated_size: usize) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn write_batch<T: AsRef<[u8]>>(&self, batch: &[WriteBatchRecord<T>]) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn put(&self, key: &[u8], value: &[u8]) -> Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     pub fn delete(&self, key: &[u8]) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/mem_table.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct MemTable {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 23 |     map: Arc<SkipMap<Bytes, Bytes>>,
[INFO] [stdout] 24 |     id: usize,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/key.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn as_key_slice(&self) -> KeySlice {
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn as_key_slice(&self) -> KeySlice<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/key.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn as_key_slice(&self) -> KeySlice {
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn as_key_slice(&self) -> KeySlice<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem_table.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn key(&self) -> KeySlice {
[INFO] [stdout]    |            ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |            |
[INFO] [stdout]    |            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn key(&self) -> KeySlice<'_> {
[INFO] [stdout]    |                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `step_wise_mini_lsm` (lib) due to 1 previous error; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `step_wise_mini_lsm` (lib test) due to 1 previous error; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cf97b487be846f1615296af36f7c095793988e6787c351d053905213067d6feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf97b487be846f1615296af36f7c095793988e6787c351d053905213067d6feb", kill_on_drop: false }`
[INFO] [stdout] cf97b487be846f1615296af36f7c095793988e6787c351d053905213067d6feb
