[INFO] cloning repository https://github.com/0ldm0s/melange_db
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0ldm0s/melange_db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0ldm0s%2Fmelange_db", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0ldm0s%2Fmelange_db'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17efb8e80359732c3f1c7999cb6802b40787b2be
[INFO] checking 0ldm0s/melange_db against try#84addd32a13fa2d3f62fe5d99031611147b7fb13 for pr-147565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0ldm0s%2Fmelange_db" "/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/0ldm0s/melange_db
[INFO] finished tweaking git repo https://github.com/0ldm0s/melange_db
[INFO] tweaked toml for git repo https://github.com/0ldm0s/melange_db written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0ldm0s/melange_db on toolchain 84addd32a13fa2d3f62fe5d99031611147b7fb13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0ldm0s/melange_db 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" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[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_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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8717a14888b98f1b41a427767115c20a0fe04e533fc42e84b34c9ca27793f927
[INFO] running `Command { std: "docker" "start" "-a" "8717a14888b98f1b41a427767115c20a0fe04e533fc42e84b34c9ca27793f927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8717a14888b98f1b41a427767115c20a0fe04e533fc42e84b34c9ca27793f927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8717a14888b98f1b41a427767115c20a0fe04e533fc42e84b34c9ca27793f927", kill_on_drop: false }`
[INFO] [stdout] 8717a14888b98f1b41a427767115c20a0fe04e533fc42e84b34c9ca27793f927
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+84addd32a13fa2d3f62fe5d99031611147b7fb13" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b86c3c1686d7430670f0453950ed7416952e9cb0370b7972b2bc65dca3ae471a
[INFO] running `Command { std: "docker" "start" "-a" "b86c3c1686d7430670f0453950ed7416952e9cb0370b7972b2bc65dca3ae471a", kill_on_drop: false }`
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr]    Compiling syn v2.0.106
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[INFO] [stderr]     Checking serde_json v1.0.145
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[INFO] [stderr]    Compiling futures-macro v0.3.31
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[INFO] [stderr]    Compiling async-trait v0.1.89
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[INFO] [stderr]     Checking tokio v1.47.1
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[INFO] [stderr]     Checking bincode v1.3.3
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[INFO] [stderr]     Checking futures v0.3.31
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[INFO] [stderr]     Checking melange_db v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `LinkedList`
[INFO] [stdout]   --> src/block_cache.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::collections::{HashMap, LinkedList, VecDeque};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/block_cache.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> src/block_cache.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]   --> src/block_cache.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]   --> src/bloom_filter.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde::{Serialize, Deserialize};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug_log`, `error_log`, `info_log`, and `trace_log`
[INFO] [stdout]   --> src/bloom_filter.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^^^^^            ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `trace_log` and `warn_log`
[INFO] [stdout]   --> src/db.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{debug_log, trace_log, warn_log, error_log, info_log, smart_flush::{SmartFlushScheduler, SmartFlushConfig}};
[INFO] [stdout]    |                        ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info_log` and `warn_log`
[INFO] [stdout]  --> src/flush_epoch.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                   ^^^^^^^^             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error_log` and `info_log`
[INFO] [stdout]  --> src/heap.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                             ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LinkedList`
[INFO] [stdout]   --> src/block_cache.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::collections::{HashMap, LinkedList, VecDeque};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug_log`, `error_log`, `info_log`, and `warn_log`
[INFO] [stdout]  --> src/id_allocator.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |             ^^^^^^^^^             ^^^^^^^^  ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error_log`, `info_log`, and `warn_log`
[INFO] [stdout]  --> src/leaf.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                   ^^^^^^^^  ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/block_cache.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> src/block_cache.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]   --> src/block_cache.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]   --> src/bloom_filter.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde::{Serialize, Deserialize};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info_log`
[INFO] [stdout]  --> src/metadata_store.rs:6:56
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug_log`, `error_log`, `info_log`, and `trace_log`
[INFO] [stdout]   --> src/bloom_filter.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]    |             ^^^^^^^^^  ^^^^^^^^^            ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/object_cache.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `trace_log` and `warn_log`
[INFO] [stdout]   --> src/db.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::{debug_log, trace_log, warn_log, error_log, info_log, smart_flush::{SmartFlushScheduler, SmartFlushConfig}};
[INFO] [stdout]    |                        ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info_log` and `warn_log`
[INFO] [stdout]  --> src/flush_epoch.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                   ^^^^^^^^             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info_log` and `warn_log`
[INFO] [stdout]  --> src/object_cache.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log, smart_flush::WriteLoadStats};
[INFO] [stdout]   |                                   ^^^^^^^^             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Seek`, and `self`
[INFO] [stdout]  --> src/platform_utils.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Seek};
[INFO] [stdout]   |               ^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error_log` and `info_log`
[INFO] [stdout]  --> src/heap.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                             ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug_log` and `info_log`
[INFO] [stdout]   --> src/tree.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]    |             ^^^^^^^^^                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]    --> src/lib.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     use std::path::Path;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug_log`, `error_log`, `info_log`, and `warn_log`
[INFO] [stdout]  --> src/id_allocator.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |             ^^^^^^^^^             ^^^^^^^^  ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error_log`, `info_log`, and `warn_log`
[INFO] [stdout]  --> src/leaf.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                   ^^^^^^^^  ^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `info_log`
[INFO] [stdout]  --> src/metadata_store.rs:6:56
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]   |                                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/object_cache.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `info_log` and `warn_log`
[INFO] [stdout]  --> src/object_cache.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::{debug_log, trace_log, warn_log, error_log, info_log, smart_flush::WriteLoadStats};
[INFO] [stdout]   |                                   ^^^^^^^^             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `Seek`, and `self`
[INFO] [stdout]  --> src/platform_utils.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::io::{self, Read, Seek};
[INFO] [stdout]   |               ^^^^  ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug_log` and `info_log`
[INFO] [stdout]   --> src/tree.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 | use crate::{debug_log, trace_log, warn_log, error_log, info_log};
[INFO] [stdout]    |             ^^^^^^^^^                                  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]    --> src/lib.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     use std::path::Path;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]   --> src/block_cache.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]   --> src/block_cache.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bloom_filter.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let mut new_filter = Self::new(new_element_count, self.target_fpp);
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bloom_filter.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let mut new_filter = Self::new(new_element_count, self.target_fpp);
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `interval_ms` is never read
[INFO] [stdout]    --> src/smart_flush.rs:159:31
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let mut interval_ms = self.config.base_interval_ms;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut features = Vec::new();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `interval_ms` is never read
[INFO] [stdout]    --> src/smart_flush.rs:159:31
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let mut interval_ms = self.config.base_interval_ms;
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/config.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut features = Vec::new();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:597:9
[INFO] [stdout]     |
[INFO] [stdout] 597 |     let mut scheduler = SmartFlushScheduler::new(config);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]    --> src/db.rs:598:9
[INFO] [stdout]     |
[INFO] [stdout] 598 |     let stats = scheduler.get_stats();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/db.rs:597:9
[INFO] [stdout]     |
[INFO] [stdout] 597 |     let mut scheduler = SmartFlushScheduler::new(config);
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stats`
[INFO] [stdout]    --> src/db.rs:598:9
[INFO] [stdout]     |
[INFO] [stdout] 598 |     let stats = scheduler.get_stats();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stats`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/flush_epoch.rs:281:37
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         if let Some(mut callback) = callback {
[INFO] [stdout]     |                                     ----^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/flush_epoch.rs:302:37
[INFO] [stdout]     |
[INFO] [stdout] 302 |                         if let Some(mut callback) = callback {
[INFO] [stdout]     |                                     ----^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `results`
[INFO] [stdout]    --> src/flush_epoch.rs:354:25
[INFO] [stdout]     |
[INFO] [stdout] 354 |                     let results = perform_batch_flush(batch_tasks);
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/flush_epoch.rs:373:37
[INFO] [stdout]     |
[INFO] [stdout] 373 | fn perform_flush(epoch: FlushEpoch, data: Vec<u8>) -> std::io::Result<()> {
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/flush_epoch.rs:281:37
[INFO] [stdout]     |
[INFO] [stdout] 281 |                         if let Some(mut callback) = callback {
[INFO] [stdout]     |                                     ----^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/flush_epoch.rs:302:37
[INFO] [stdout]     |
[INFO] [stdout] 302 |                         if let Some(mut callback) = callback {
[INFO] [stdout]     |                                     ----^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `results`
[INFO] [stdout]    --> src/flush_epoch.rs:354:25
[INFO] [stdout]     |
[INFO] [stdout] 354 |                     let results = perform_batch_flush(batch_tasks);
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_results`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]    --> src/flush_epoch.rs:373:37
[INFO] [stdout]     |
[INFO] [stdout] 373 | fn perform_flush(epoch: FlushEpoch, data: Vec<u8>) -> std::io::Result<()> {
[INFO] [stdout]     |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/platform_utils.rs:93:39
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn read_exact_at(file: &fs::File, mut buf: &mut [u8], offset: u64) -> std::io::Result<()> {
[INFO] [stdout]    |                                       ----^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]   --> src/simd_optimized.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let remainder = min_len % 8;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `simd_optimized::SimdComparator::compare_simd_avx2` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/simd_optimized.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 Self::compare_simd_avx2(a, b, len)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/simd_optimized.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     unsafe fn compare_simd(a: &[u8], b: &[u8], len: usize) -> Ordering {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `simd_optimized::SimdComparator::compare_simd_sse2` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/simd_optimized.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 Self::compare_simd_sse2(a, b, len)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `simd_optimized::SimdComparator::compare_simd_fallback` is unsafe and requires unsafe block
[INFO] [stdout]    --> src/simd_optimized.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 Self::compare_simd_fallback(a, b, len)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]     = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/simd_optimized.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let remainder = len % 32;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/simd_optimized.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let remainder = len % 16;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/simd_optimized.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let remainder = len % 8;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/platform_utils.rs:93:39
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn read_exact_at(file: &fs::File, mut buf: &mut [u8], offset: u64) -> std::io::Result<()> {
[INFO] [stdout]    |                                       ----^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]   --> src/simd_optimized.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let remainder = min_len % 8;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `simd_optimized::SimdComparator::compare_simd_avx2` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/simd_optimized.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |                 Self::compare_simd_avx2(a, b, len)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] note: an unsafe function restricts its caller, but its body is safe by default
[INFO] [stdout]   --> src/simd_optimized.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     unsafe fn compare_simd(a: &[u8], b: &[u8], len: usize) -> Ordering {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unsafe_op_in_unsafe_fn)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `simd_optimized::SimdComparator::compare_simd_sse2` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/simd_optimized.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 Self::compare_simd_sse2(a, b, len)
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0133]: call to unsafe function `simd_optimized::SimdComparator::compare_simd_fallback` is unsafe and requires unsafe block
[INFO] [stdout]    --> src/simd_optimized.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 Self::compare_simd_fallback(a, b, len)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-op-in-unsafe-fn.html>
[INFO] [stdout]     = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/simd_optimized.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let remainder = len % 32;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/simd_optimized.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let remainder = len % 16;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]    --> src/simd_optimized.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let remainder = len % 8;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `move_to_head` is never used
[INFO] [stdout]    --> src/block_cache.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl LruCache {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn move_to_head(&mut self, node: &mut Box<LruNode>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]    --> src/block_cache.rs:532:5
[INFO] [stdout]     |
[INFO] [stdout] 530 | pub struct CacheManager {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 531 |     block_cache: Arc<TieredBlockCache>,
[INFO] [stdout] 532 |     config: CacheConfig,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CacheManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptimizedFlushScheduler` is never constructed
[INFO] [stdout]   --> src/flush_epoch.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct OptimizedFlushScheduler {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FlushTask` is never used
[INFO] [stdout]   --> src/flush_epoch.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum FlushTask {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BatchFlushTask` is never constructed
[INFO] [stdout]   --> src/flush_epoch.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct BatchFlushTask {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FlushPriority` is never used
[INFO] [stdout]   --> src/flush_epoch.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub enum FlushPriority {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlushConfig` is never constructed
[INFO] [stdout]   --> src/flush_epoch.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct FlushConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlushStats` is never constructed
[INFO] [stdout]    --> src/flush_epoch.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub struct FlushStats {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/flush_epoch.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl OptimizedFlushScheduler {
[INFO] [stdout]     | ---------------------------- associated items in this implementation
[INFO] [stdout] 117 |     /// 创建新的优化的flush调度器
[INFO] [stdout] 118 |     pub fn new(config: FlushConfig) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn start_workers(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub fn submit_immediate_flush<F>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn submit_delayed_flush<F>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 198 |     pub fn submit_batch_flush<F>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub fn get_stats(&self) -> FlushStats {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 230 |     pub fn shutdown(self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `worker_loop` is never used
[INFO] [stdout]    --> src/flush_epoch.rs:252:4
[INFO] [stdout]     |
[INFO] [stdout] 252 | fn worker_loop(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform_flush` is never used
[INFO] [stdout]    --> src/flush_epoch.rs:373:4
[INFO] [stdout]     |
[INFO] [stdout] 373 | fn perform_flush(epoch: FlushEpoch, data: Vec<u8>) -> std::io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform_batch_flush` is never used
[INFO] [stdout]    --> src/flush_epoch.rs:387:4
[INFO] [stdout]     |
[INFO] [stdout] 387 | fn perform_batch_flush(tasks: Vec<BatchFlushTask>) -> Vec<std::io::Result<()>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/leaf.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl IncrementalChanges {
[INFO] [stdout]    | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `disable_incremental_serialization`, `apply_incremental_changes`, and `reset_incremental_changes` are never used
[INFO] [stdout]    --> src/leaf.rs:130:19
[INFO] [stdout]     |
[INFO] [stdout] 102 | impl<const LEAF_FANOUT: usize> Leaf<LEAF_FANOUT> {
[INFO] [stdout]     | ------------------------------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub(crate) fn disable_incremental_serialization(&mut self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 368 |     pub(crate) fn apply_incremental_changes(&mut self, changes: &IncrementalChanges) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |     pub(crate) fn reset_incremental_changes(&mut self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/object_cache.rs:411:35
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn check_into_flush_epoch(&self) -> FlushEpochGuard {
[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] 411 |     pub fn check_into_flush_epoch(&self) -> FlushEpochGuard<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stdout] warning: method `move_to_head` is never used
[INFO] [stdout]    --> src/block_cache.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl LruCache {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn move_to_head(&mut self, node: &mut Box<LruNode>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `config` is never read
[INFO] [stdout]    --> src/block_cache.rs:532:5
[INFO] [stdout]     |
[INFO] [stdout] 530 | pub struct CacheManager {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 531 |     block_cache: Arc<TieredBlockCache>,
[INFO] [stdout] 532 |     config: CacheConfig,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CacheManager` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OptimizedFlushScheduler` is never constructed
[INFO] [stdout]   --> src/flush_epoch.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct OptimizedFlushScheduler {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FlushTask` is never used
[INFO] [stdout]   --> src/flush_epoch.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum FlushTask {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BatchFlushTask` is never constructed
[INFO] [stdout]   --> src/flush_epoch.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct BatchFlushTask {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FlushPriority` is never used
[INFO] [stdout]   --> src/flush_epoch.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub enum FlushPriority {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlushConfig` is never constructed
[INFO] [stdout]   --> src/flush_epoch.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct FlushConfig {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FlushStats` is never constructed
[INFO] [stdout]    --> src/flush_epoch.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub struct FlushStats {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/flush_epoch.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl OptimizedFlushScheduler {
[INFO] [stdout]     | ---------------------------- associated items in this implementation
[INFO] [stdout] 117 |     /// 创建新的优化的flush调度器
[INFO] [stdout] 118 |     pub fn new(config: FlushConfig) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn start_workers(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub fn submit_immediate_flush<F>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     pub fn submit_delayed_flush<F>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 198 |     pub fn submit_batch_flush<F>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub fn get_stats(&self) -> FlushStats {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 230 |     pub fn shutdown(self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `worker_loop` is never used
[INFO] [stdout]    --> src/flush_epoch.rs:252:4
[INFO] [stdout]     |
[INFO] [stdout] 252 | fn worker_loop(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform_flush` is never used
[INFO] [stdout]    --> src/flush_epoch.rs:373:4
[INFO] [stdout]     |
[INFO] [stdout] 373 | fn perform_flush(epoch: FlushEpoch, data: Vec<u8>) -> std::io::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perform_batch_flush` is never used
[INFO] [stdout]    --> src/flush_epoch.rs:387:4
[INFO] [stdout]     |
[INFO] [stdout] 387 | fn perform_batch_flush(tasks: Vec<BatchFlushTask>) -> Vec<std::io::Result<()>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]   --> src/leaf.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl IncrementalChanges {
[INFO] [stdout]    | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub fn clear(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `disable_incremental_serialization`, `apply_incremental_changes`, and `reset_incremental_changes` are never used
[INFO] [stdout]    --> src/leaf.rs:130:19
[INFO] [stdout]     |
[INFO] [stdout] 102 | impl<const LEAF_FANOUT: usize> Leaf<LEAF_FANOUT> {
[INFO] [stdout]     | ------------------------------------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub(crate) fn disable_incremental_serialization(&mut self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 368 |     pub(crate) fn apply_incremental_changes(&mut self, changes: &IncrementalChanges) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 386 |     pub(crate) fn reset_incremental_changes(&mut self) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/object_cache.rs:411:35
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn check_into_flush_epoch(&self) -> FlushEpochGuard {
[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] 411 |     pub fn check_into_flush_epoch(&self) -> FlushEpochGuard<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Db`
[INFO] [stdout]  --> examples/no_logger_test.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use melange_db::{Db, Config};
[INFO] [stdout]   |                  ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> benches/basic_benchmark.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `melange_db::*`
[INFO] [stdout]  --> tests/mmap_performance_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use melange_db::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Db`
[INFO] [stdout]  --> examples/rat_logger_demo.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use melange_db::{Db, Config};
[INFO] [stdout]   |                  ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::unix::fs::FileExt`
[INFO] [stdout]   --> tests/mmap_performance_test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::os::unix::fs::FileExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `melange_db::*`
[INFO] [stdout]  --> examples/macbook_air_m1_compression_none.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use melange_db::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> examples/macbook_air_m1_compression_none.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::Instant;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> benches/basic_benchmark.rs:93:29
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rat_logger::LoggerBuilder::init`: 请使用init_global_logger方法
[INFO] [stdout]  --> examples/rat_logger_demo.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 |         .init()?;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> tests/integration_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> examples/macbook_air_m1_compression_none.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |           return Ok(());
[INFO] [stdout]    |           ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 23 | /     {
[INFO] [stdout] 24 | |         eprintln!("❌ 错误: 此示例需要启用 compression-none 特性");
[INFO] [stdout] 25 | |         eprintln!("❌ 请使用以下命令运行:");
[INFO] [stdout] 26 | |         eprintln!("❌ cargo run --example macbook_air_m1_compression_none --features compression-none --release");
[INFO] [stdout] 27 | |         return Err("未启用 compression-none 特性".into());
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> tests/mmap_performance_test.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut rng = rand::thread_rng();
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> tests/mmap_performance_test.rs:285:29
[INFO] [stdout]     |
[INFO] [stdout] 285 |         let mut rng = rand::thread_rng();
[INFO] [stdout]     |                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `melange_db::*`
[INFO] [stdout]  --> examples/macbook_air_m1_compression_lz4.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use melange_db::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> examples/macbook_air_m1_compression_lz4.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::Instant;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `melange_db::*`
[INFO] [stdout]  --> examples/macbook_air_m1_compression_zstd.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use melange_db::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> examples/macbook_air_m1_compression_zstd.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::Instant;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> examples/macbook_air_m1_compression_zstd.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |           return Ok(());
[INFO] [stdout]    |           ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 23 | /     {
[INFO] [stdout] 24 | |         eprintln!("❌ 错误: 此示例需要启用 compression-zstd 特性");
[INFO] [stdout] 25 | |         eprintln!("❌ 请使用以下命令运行:");
[INFO] [stdout] 26 | |         eprintln!("❌ cargo run --example macbook_air_m1_compression_zstd --features compression-zstd --release");
[INFO] [stdout] 27 | |         return Err("未启用 compression-zstd 特性".into());
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> examples/macbook_air_m1_compression_lz4.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |           return Ok(());
[INFO] [stdout]    |           ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 23 | /     {
[INFO] [stdout] 24 | |         eprintln!("❌ 错误: 此示例需要启用 compression-lz4 特性");
[INFO] [stdout] 25 | |         eprintln!("❌ 请使用以下命令运行:");
[INFO] [stdout] 26 | |         eprintln!("❌ cargo run --example macbook_air_m1_compression_lz4 --features compression-lz4 --release");
[INFO] [stdout] 27 | |         return Err("未启用 compression-lz4 特性".into());
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]   --> benches/basic_benchmark.rs:95:29
[INFO] [stdout]    |
[INFO] [stdout] 95 |             let index = rng.gen_range(0..1000);
[INFO] [stdout]    |                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Command` and `Stdio`
[INFO] [stdout]   --> tests/optimization_performance_test.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::process::{Command, Stdio};
[INFO] [stdout]    |                    ^^^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ConcurrentBloomFilter`
[INFO] [stdout]   --> tests/optimization_performance_test.rs:21:49
[INFO] [stdout]    |
[INFO] [stdout] 21 |     use melange_db::bloom_filter::{BloomFilter, ConcurrentBloomFilter};
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AccessPattern` and `CacheBlock`
[INFO] [stdout]   --> tests/optimization_performance_test.rs:22:62
[INFO] [stdout]    |
[INFO] [stdout] 22 |     use melange_db::block_cache::{CacheManager, CacheConfig, CacheBlock, AccessPattern};
[INFO] [stdout]    |                                                              ^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> tests/optimization_performance_test.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let mut rng = rand::thread_rng();
[INFO] [stdout]    |                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> tests/optimization_performance_test.rs:253:35
[INFO] [stdout]     |
[INFO] [stdout] 253 |                     *byte = rand::thread_rng().random();
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> tests/optimization_performance_test.rs:279:35
[INFO] [stdout]     |
[INFO] [stdout] 279 |             let key_index = rand::thread_rng().random_range(0..test_key_count);
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> tests/optimization_performance_test.rs:296:41
[INFO] [stdout]     |
[INFO] [stdout] 296 |             let start_key = &keys[rand::thread_rng().random_range(0..test_key_count)];
[INFO] [stdout]     |                                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> tests/performance_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> examples/performance_demo.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> examples/performance_demo.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> examples/performance_demo.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> examples/best_practices.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> examples/best_practices.rs:185:14
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let (key, value) = kv?;
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.42s
[INFO] running `Command { std: "docker" "inspect" "b86c3c1686d7430670f0453950ed7416952e9cb0370b7972b2bc65dca3ae471a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b86c3c1686d7430670f0453950ed7416952e9cb0370b7972b2bc65dca3ae471a", kill_on_drop: false }`
[INFO] [stdout] b86c3c1686d7430670f0453950ed7416952e9cb0370b7972b2bc65dca3ae471a
