[INFO] cloning repository https://github.com/thomasjsk/alg-ds
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomasjsk/alg-ds" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasjsk%2Falg-ds", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasjsk%2Falg-ds'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7654625b94f36913730bdf5c25d7c3d5a70096ad
[INFO] testing thomasjsk/alg-ds against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasjsk%2Falg-ds" "/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/thomasjsk/alg-ds
[INFO] finished tweaking git repo https://github.com/thomasjsk/alg-ds
[INFO] tweaked toml for git repo https://github.com/thomasjsk/alg-ds written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thomasjsk/alg-ds on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thomasjsk/alg-ds 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4882babb64921ffea58c05e0cc55d904390d043aa336441e9307a96b0096af4c
[INFO] running `Command { std: "docker" "start" "-a" "4882babb64921ffea58c05e0cc55d904390d043aa336441e9307a96b0096af4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4882babb64921ffea58c05e0cc55d904390d043aa336441e9307a96b0096af4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4882babb64921ffea58c05e0cc55d904390d043aa336441e9307a96b0096af4c", kill_on_drop: false }`
[INFO] [stdout] 4882babb64921ffea58c05e0cc55d904390d043aa336441e9307a96b0096af4c
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bba602eb71d0b7a5dda99437e3eb31e3486829d101dedb38b781bbdf2176cedb
[INFO] running `Command { std: "docker" "start" "-a" "bba602eb71d0b7a5dda99437e3eb31e3486829d101dedb38b781bbdf2176cedb", kill_on_drop: false }`
[INFO] [stderr]    Compiling algos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ArrayList` is never constructed
[INFO] [stdout]  --> src/array_list.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ArrayList<T> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/array_list.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  10 | / impl<T> ArrayList<T>
[INFO] [stdout]  11 | | where
[INFO] [stdout]  12 | |     T: Clone + Default,
[INFO] [stdout]     | |_______________________- associated items in this implementation
[INFO] [stdout]  13 |   {
[INFO] [stdout]  14 |       pub fn new(cap: usize) -> ArrayList<T> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  30 |       pub fn len(&self) -> usize {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  34 |       pub fn cap(&self) -> usize {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  38 |       pub fn print(&self) -> &[T] {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  42 |       pub fn push(&mut self, value: T) {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  54 |       pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  68 |       pub fn pop_front(&mut self) -> Option<T> {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  90 |       pub fn push_front(&mut self, value: T) {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |       fn with_capacity(cap: usize) -> *mut T {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |       fn resize(&mut self, cap: usize) {
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_search_list` is never used
[INFO] [stdout]  --> src/binary_search_list.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn binary_search_list(haystack: [u32; 10], needle: u32) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/bubble_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bubble_sort(arr: &mut [u32]) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `LinkedNode` is never used
[INFO] [stdout]  --> src/doubly_linked_list.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type LinkedNode<T> = Rc<RefCell<Node<T>>>;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/doubly_linked_list.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `forward_traversal` are never used
[INFO] [stdout]   --> src/doubly_linked_list.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Clone> Node<T> {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(value: T) -> LinkedNode<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn forward_traversal(&mut self) -> Option<&LinkedNode<T>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DoublyLinkedList` is never constructed
[INFO] [stdout]   --> src/doubly_linked_list.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct DoublyLinkedList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_at_head`, `insert_at_tail`, `peek_head`, `peek_tail`, and `insert_after` are never used
[INFO] [stdout]   --> src/doubly_linked_list.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<T: Clone> DoublyLinkedList<T> {
[INFO] [stdout]    | ---------------------------------- associated items in this implementation
[INFO] [stdout] 36 |     pub fn new() -> DoublyLinkedList<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn insert_at_head(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn insert_at_tail(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn peek_head(&self) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn peek_tail(&self) -> Option<T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     pub fn insert_after(&mut self, pos: u32, value: T) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linear_search` is never used
[INFO] [stdout]  --> src/linear_search.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn linear_search(haystack: [String; 10], needle: &String) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/queue.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `append` are never used
[INFO] [stdout]   --> src/queue.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(value: T) -> Node<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn append(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Queue` is never constructed
[INFO] [stdout]   --> src/queue.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Queue<T: Clone> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `enqueue`, `deque`, and `peek` are never used
[INFO] [stdout]   --> src/queue.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<T: Clone> Queue<T> {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] 26 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn enqueue(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn deque(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn peek(&self) -> Option<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]  --> src/quick_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn quick_sort(
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pivot` is never used
[INFO] [stdout]   --> src/quick_sort.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn pivot(arr: &mut Vec<i32>, lo: i32, hi: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/stack.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/stack.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn new(value: T) -> Rc<RefCell<Self>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stack` is never constructed
[INFO] [stdout]   --> src/stack.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Stack<T: Clone> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push`, `pop`, and `peek` are never used
[INFO] [stdout]   --> src/stack.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<T: Clone> Stack<T> {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] 21 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn push(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn peek(&self) -> Option<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_crystal_balls` is never used
[INFO] [stdout]  --> src/two_crystal_balls.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn two_crystal_balls(breaks: &[bool]) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "bba602eb71d0b7a5dda99437e3eb31e3486829d101dedb38b781bbdf2176cedb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba602eb71d0b7a5dda99437e3eb31e3486829d101dedb38b781bbdf2176cedb", kill_on_drop: false }`
[INFO] [stdout] bba602eb71d0b7a5dda99437e3eb31e3486829d101dedb38b781bbdf2176cedb
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 462e1c6af1d4f997d0b04e387e361166e117f233d4662a3c32e715e6bfbab888
[INFO] running `Command { std: "docker" "start" "-a" "462e1c6af1d4f997d0b04e387e361166e117f233d4662a3c32e715e6bfbab888", kill_on_drop: false }`
[INFO] [stderr]    Compiling algos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `forward_traversal` is never used
[INFO] [stdout]   --> src/doubly_linked_list.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Clone> Node<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn forward_traversal(&mut self) -> Option<&LinkedNode<T>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linear_search` is never used
[INFO] [stdout]  --> src/linear_search.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn linear_search(haystack: [String; 10], needle: &String) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append` is never used
[INFO] [stdout]   --> src/queue.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn append(&mut self, value: T) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "462e1c6af1d4f997d0b04e387e361166e117f233d4662a3c32e715e6bfbab888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "462e1c6af1d4f997d0b04e387e361166e117f233d4662a3c32e715e6bfbab888", kill_on_drop: false }`
[INFO] [stdout] 462e1c6af1d4f997d0b04e387e361166e117f233d4662a3c32e715e6bfbab888
[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=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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 81b0e3bd0cc9e05293aa9b9fb23dd2676bb1c68dc86d6307f51d1bc6a3300677
[INFO] running `Command { std: "docker" "start" "-a" "81b0e3bd0cc9e05293aa9b9fb23dd2676bb1c68dc86d6307f51d1bc6a3300677", kill_on_drop: false }`
[INFO] [stderr] warning: method `forward_traversal` is never used
[INFO] [stderr]   --> src/doubly_linked_list.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Clone> Node<T> {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 21 |     pub fn forward_traversal(&mut self) -> Option<&LinkedNode<T>> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `linear_search` is never used
[INFO] [stderr]  --> src/linear_search.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn linear_search(haystack: [String; 10], needle: &String) -> bool {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `append` is never used
[INFO] [stderr]   --> src/queue.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr]  9 | impl<T> Node<T> {
[INFO] [stderr]    | --------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 14 |     pub fn append(&mut self, value: T) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `algos` (bin "algos" test) generated 3 warnings
[INFO] [stdout] running 18 tests
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] test array_list::tests::growing ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/algos-6979ffafcaeff42b)
[INFO] [stdout] test array_list::tests::push_front ... ok
[INFO] [stdout] test array_list::tests::push_front_and_back ... ok
[INFO] [stdout] test binary_search_list::tests::test ... ok
[INFO] [stdout] test bubble_sort::tests::test ... ok
[INFO] [stdout] test array_list::tests::pop ... ok
[INFO] [stdout] test queue::tests::test_1 ... ok
[INFO] [stdout] test doubly_linked_list::tests::insert_after_success ... ok
[INFO] [stdout] test quick_sort::tests::test_1 ... ok
[INFO] [stdout] test doubly_linked_list::tests::insert_at_tail ... ok
[INFO] [stdout] test doubly_linked_list::tests::traverse_forward ... ok
[INFO] [stdout] test stack::tests::test_1 ... ok
[INFO] [stdout] test two_crystal_balls::tests::test ... ok
[INFO] [stdout] test doubly_linked_list::tests::insert_at_head ... ok
[INFO] [stdout] test quick_sort::tests::test_2 ... ok
[INFO] [stdout] test array_list::tests::pop_front ... ok
[INFO] [stdout] test doubly_linked_list::tests::insert_after_oob - should panic ... ok
[INFO] [stdout] test doubly_linked_list::tests::insert_after_empty_list - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81b0e3bd0cc9e05293aa9b9fb23dd2676bb1c68dc86d6307f51d1bc6a3300677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81b0e3bd0cc9e05293aa9b9fb23dd2676bb1c68dc86d6307f51d1bc6a3300677", kill_on_drop: false }`
[INFO] [stdout] 81b0e3bd0cc9e05293aa9b9fb23dd2676bb1c68dc86d6307f51d1bc6a3300677
