[INFO] cloning repository https://github.com/hailelagi/lettuce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hailelagi/lettuce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhailelagi%2Flettuce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhailelagi%2Flettuce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50925d779acee88c387177319b2937765911ecc7
[INFO] testing hailelagi/lettuce against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhailelagi%2Flettuce" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/hailelagi/lettuce
[INFO] finished tweaking git repo https://github.com/hailelagi/lettuce
[INFO] tweaked toml for git repo https://github.com/hailelagi/lettuce written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hailelagi/lettuce on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hailelagi/lettuce already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df9a2464d2c5b1c2011a4c9b5f7907ac3a55b98f9d2941c6966f7605fe6b4946
[INFO] running `Command { std: "docker" "start" "-a" "df9a2464d2c5b1c2011a4c9b5f7907ac3a55b98f9d2941c6966f7605fe6b4946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df9a2464d2c5b1c2011a4c9b5f7907ac3a55b98f9d2941c6966f7605fe6b4946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df9a2464d2c5b1c2011a4c9b5f7907ac3a55b98f9d2941c6966f7605fe6b4946", kill_on_drop: false }`
[INFO] [stdout] df9a2464d2c5b1c2011a4c9b5f7907ac3a55b98f9d2941c6966f7605fe6b4946
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20f2603ee5706e88dc8bc52d88d5062707b5e0ee8913619779f52066015edbfa
[INFO] running `Command { std: "docker" "start" "-a" "20f2603ee5706e88dc8bc52d88d5062707b5e0ee8913619779f52066015edbfa", kill_on_drop: false }`
[INFO] [stderr] warning: lettuce v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-fuzz` which is missing a lib target
[INFO] [stderr]    Compiling syn v2.0.49
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling serde v1.0.198
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
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[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling cc v1.2.4
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling anstyle v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling cpp_demangle v0.4.4
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[INFO] [stderr]    Compiling rand_core v0.6.4
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[INFO] [stderr]    Compiling backtrace v0.3.73
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling regex v1.10.4
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[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling tempfile v3.10.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.198
[INFO] [stderr]    Compiling equator-macro v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]    Compiling proptest v1.4.0
[INFO] [stderr]    Compiling addr2line v0.22.0
[INFO] [stderr]    Compiling equator v0.2.2
[INFO] [stderr]    Compiling aligned-vec v0.6.1
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling clap v4.5.2
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling lettuce v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/ca_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp;
[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]   --> src/wavl.rs:94:30
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn search(&mut self, key: K) -> Option<&V> where K: Ord {
[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] [stdout] warning: fields `internal_node` and `base_node` are never read
[INFO] [stdout]   --> src/ca_tree.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct CATree<K, V> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 36 |     internal_node: Node<K>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 37 |     base_node: BTreeMap<K, V>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key`, `left`, `right`, and `lock` are never read
[INFO] [stdout]   --> src/ca_tree.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct Node<K> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 41 |     key: K,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     // less than or equal to routing node's key
[INFO] [stdout] 43 |     left: Option<Box<Node<K>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 44 |     // greater than routing node's key
[INFO] [stdout] 45 |     right: Option<Box<Node<K>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 46 |     lock: StatisticLock<K>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mu`, `flag`, and `statistic` are never read
[INFO] [stdout]   --> src/ca_tree.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct StatisticLock<T> {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 51 |     mu: RwLock<T>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 52 |     flag: LockState,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     statistic: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]  --> src/wavl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WAVLTree<K, V> {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     root: Link<K, V>,
[INFO] [stdout] 6 |     height: usize
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `WAVLTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/wavl.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Node<K, V> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     height: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Node` is never used
[INFO] [stdout]  --> src/art/art.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Node {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdaptiveRadixTree` is never constructed
[INFO] [stdout]   --> src/art/art.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AdaptiveRadixTree {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stdout]   --> src/art/art.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl AdaptiveRadixTree {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn insert(&mut self, key: &str, value: String) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn get(&self, key: &str) -> Option<&String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/art/node.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_child` are never used
[INFO] [stdout]   --> src/art/node.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout]  8 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn add_child(&mut self, child: Node<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.13s
[INFO] running `Command { std: "docker" "inspect" "20f2603ee5706e88dc8bc52d88d5062707b5e0ee8913619779f52066015edbfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f2603ee5706e88dc8bc52d88d5062707b5e0ee8913619779f52066015edbfa", kill_on_drop: false }`
[INFO] [stdout] 20f2603ee5706e88dc8bc52d88d5062707b5e0ee8913619779f52066015edbfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bc13231d01ae32dac0f78327405fd1facde9eec506784f56d6590f318a28de7
[INFO] running `Command { std: "docker" "start" "-a" "7bc13231d01ae32dac0f78327405fd1facde9eec506784f56d6590f318a28de7", kill_on_drop: false }`
[INFO] [stderr] warning: lettuce v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-fuzz` which is missing a lib target
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/ca_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp;
[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]   --> src/wavl.rs:94:30
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn search(&mut self, key: K) -> Option<&V> where K: Ord {
[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] [stdout] warning: fields `internal_node` and `base_node` are never read
[INFO] [stdout]   --> src/ca_tree.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct CATree<K, V> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 36 |     internal_node: Node<K>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 37 |     base_node: BTreeMap<K, V>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key`, `left`, `right`, and `lock` are never read
[INFO] [stdout]   --> src/ca_tree.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct Node<K> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 41 |     key: K,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     // less than or equal to routing node's key
[INFO] [stdout] 43 |     left: Option<Box<Node<K>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 44 |     // greater than routing node's key
[INFO] [stdout] 45 |     right: Option<Box<Node<K>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 46 |     lock: StatisticLock<K>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mu`, `flag`, and `statistic` are never read
[INFO] [stdout]   --> src/ca_tree.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct StatisticLock<T> {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 51 |     mu: RwLock<T>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 52 |     flag: LockState,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     statistic: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]  --> src/wavl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WAVLTree<K, V> {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     root: Link<K, V>,
[INFO] [stdout] 6 |     height: usize
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `WAVLTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lettuce v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/wavl.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Node<K, V> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     height: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Node` is never used
[INFO] [stdout]  --> src/art/art.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Node {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdaptiveRadixTree` is never constructed
[INFO] [stdout]   --> src/art/art.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AdaptiveRadixTree {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stdout]   --> src/art/art.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl AdaptiveRadixTree {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn insert(&mut self, key: &str, value: String) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn get(&self, key: &str) -> Option<&String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/art/node.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_child` are never used
[INFO] [stdout]   --> src/art/node.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout]  8 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn add_child(&mut self, child: Node<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp`
[INFO] [stdout]  --> src/ca_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp;
[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]   --> src/wavl.rs:94:30
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn search(&mut self, key: K) -> Option<&V> where K: Ord {
[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] [stdout] warning: fields `internal_node` and `base_node` are never read
[INFO] [stdout]   --> src/ca_tree.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct CATree<K, V> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 36 |     internal_node: Node<K>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 37 |     base_node: BTreeMap<K, V>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key`, `left`, `right`, and `lock` are never read
[INFO] [stdout]   --> src/ca_tree.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct Node<K> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 41 |     key: K,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 42 |     // less than or equal to routing node's key
[INFO] [stdout] 43 |     left: Option<Box<Node<K>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 44 |     // greater than routing node's key
[INFO] [stdout] 45 |     right: Option<Box<Node<K>>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 46 |     lock: StatisticLock<K>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `mu`, `flag`, and `statistic` are never read
[INFO] [stdout]   --> src/ca_tree.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct StatisticLock<T> {
[INFO] [stdout]    |        ------------- fields in this struct
[INFO] [stdout] 51 |     mu: RwLock<T>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 52 |     flag: LockState,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     statistic: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]  --> src/wavl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WAVLTree<K, V> {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     root: Link<K, V>,
[INFO] [stdout] 6 |     height: usize
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `WAVLTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/wavl.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Node<K, V> {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     height: i32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Node` is never used
[INFO] [stdout]  --> src/art/art.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Node {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AdaptiveRadixTree` is never constructed
[INFO] [stdout]   --> src/art/art.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AdaptiveRadixTree {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stdout]   --> src/art/art.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl AdaptiveRadixTree {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 17 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn insert(&mut self, key: &str, value: String) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn get(&self, key: &str) -> Option<&String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/art/node.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_child` are never used
[INFO] [stdout]   --> src/art/node.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout]  8 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn add_child(&mut self, child: Node<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "7bc13231d01ae32dac0f78327405fd1facde9eec506784f56d6590f318a28de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc13231d01ae32dac0f78327405fd1facde9eec506784f56d6590f318a28de7", kill_on_drop: false }`
[INFO] [stdout] 7bc13231d01ae32dac0f78327405fd1facde9eec506784f56d6590f318a28de7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74feda0162effd35a328dc7f2d04ffd240883e33fb60f22851e4e917eddceef2
[INFO] running `Command { std: "docker" "start" "-a" "74feda0162effd35a328dc7f2d04ffd240883e33fb60f22851e4e917eddceef2", kill_on_drop: false }`
[INFO] [stderr] warning: lettuce v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-fuzz` which is missing a lib target
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/ca_tree.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/wavl.rs:94:30
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn search(&mut self, key: K) -> Option<&V> where K: Ord {
[INFO] [stderr]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `internal_node` and `base_node` are never read
[INFO] [stderr]   --> src/ca_tree.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct CATree<K, V> {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 36 |     internal_node: Node<K>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 37 |     base_node: BTreeMap<K, V>,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `key`, `left`, `right`, and `lock` are never read
[INFO] [stderr]   --> src/ca_tree.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | struct Node<K> {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 41 |     key: K,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 42 |     // less than or equal to routing node's key
[INFO] [stderr] 43 |     left: Option<Box<Node<K>>>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 44 |     // greater than routing node's key
[INFO] [stderr] 45 |     right: Option<Box<Node<K>>>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 46 |     lock: StatisticLock<K>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `mu`, `flag`, and `statistic` are never read
[INFO] [stderr]   --> src/ca_tree.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | struct StatisticLock<T> {
[INFO] [stderr]    |        ------------- fields in this struct
[INFO] [stderr] 51 |     mu: RwLock<T>,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 52 |     flag: LockState,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 53 |     statistic: AtomicUsize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `height` is never read
[INFO] [stderr]  --> src/wavl.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct WAVLTree<K, V> {
[INFO] [stderr]   |            -------- field in this struct
[INFO] [stderr] 5 |     root: Link<K, V>,
[INFO] [stderr] 6 |     height: usize
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `WAVLTree` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `height` is never read
[INFO] [stderr]   --> src/wavl.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct Node<K, V> {
[INFO] [stderr]    |        ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 20 |     height: i32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Node` is never used
[INFO] [stderr]  --> src/art/art.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | enum Node {
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AdaptiveRadixTree` is never constructed
[INFO] [stderr]   --> src/art/art.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct AdaptiveRadixTree {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `insert`, and `get` are never used
[INFO] [stderr]   --> src/art/art.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl AdaptiveRadixTree {
[INFO] [stderr]    | ---------------------- associated items in this implementation
[INFO] [stderr] 17 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 23 |     pub fn insert(&mut self, key: &str, value: String) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn get(&self, key: &str) -> Option<&String> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stderr]  --> src/art/node.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Node<T> {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `add_child` are never used
[INFO] [stderr]   --> src/art/node.rs:8:12
[INFO] [stderr]    |
[INFO] [stderr]  7 | impl<T> Node<T> {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr]  8 |     pub fn new(value: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 15 |     pub fn add_child(&mut self, child: Node<T>) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lettuce` (lib) generated 12 warnings (run `cargo fix --lib -p lettuce` to apply 2 suggestions)
[INFO] [stderr] warning: `lettuce` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lettuce-3a23673ae2cdd953)
[INFO] [stderr]    Doc-tests lettuce
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test wavl::tests::test_insert_and_get ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "74feda0162effd35a328dc7f2d04ffd240883e33fb60f22851e4e917eddceef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74feda0162effd35a328dc7f2d04ffd240883e33fb60f22851e4e917eddceef2", kill_on_drop: false }`
[INFO] [stdout] 74feda0162effd35a328dc7f2d04ffd240883e33fb60f22851e4e917eddceef2
