[INFO] cloning repository https://github.com/varshard/rust_playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/varshard/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarshard%2Frust_playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarshard%2Frust_playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5713e6152f4e0ecc6baab8015f190ce23b8346cd
[INFO] checking varshard/rust_playground against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvarshard%2Frust_playground" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/varshard/rust_playground on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] finished tweaking git repo https://github.com/varshard/rust_playground
[INFO] tweaked toml for git repo https://github.com/varshard/rust_playground written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/varshard/rust_playground 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" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded cucumber-codegen v0.20.1
[INFO] [stderr]   Downloaded cucumber v0.20.1
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[INFO] [stderr]     Checking iterator v0.1.0 (/opt/rustwide/workdir/crates/iterator)
[INFO] [stderr]     Checking first_missing_positive v0.1.0 (/opt/rustwide/workdir/crates/first_missing_positive)
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> crates/iterator/src/lib.rs:23:40
[INFO] [stdout]    |
[INFO] [stdout] 23 |         assert_eq!(map.iter().filter(|(k, v)| **v == String::from("bar"))
[INFO] [stdout]    |                                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking heap v0.1.0 (/opt/rustwide/workdir/crates/heap)
[INFO] [stderr]     Checking linkedlist v0.1.0 (/opt/rustwide/workdir/crates/linkedlist)
[INFO] [stdout] warning: type alias `Link` is never used
[INFO] [stdout]   --> crates/linkedlist/src/lib.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | type Link<T> = Option<Rc<RefCell<Node<T>>>>;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> crates/linkedlist/src/lib.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Node<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> crates/linkedlist/src/lib.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 24 |     fn new(val: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedList` is never constructed
[INFO] [stdout]   --> crates/linkedlist/src/lib.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct LinkedList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `length`, `is_empty`, `new`, `append`, and `pop_front` are never used
[INFO] [stdout]   --> crates/linkedlist/src/lib.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<T> LinkedList<T> {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 36 |     fn length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn append(&mut self, val: T) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     fn pop_front(&mut self) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking coinchange v0.1.0 (/opt/rustwide/workdir/crates/coinchange)
[INFO] [stderr]     Checking binary_tree v0.1.0 (/opt/rustwide/workdir/crates/binary_tree)
[INFO] [stderr]     Checking tests v0.1.0 (/opt/rustwide/workdir/crates/tests)
[INFO] [stdout] warning: struct `Heap` is never constructed
[INFO] [stdout]  --> crates/heap/src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Heap {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> crates/heap/src/lib.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Heap {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 8  |     pub fn new() -> Self<> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn push(&mut self, v: i32) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn pop(&mut self) -> Option<i32>{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn parent(&self, i: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     fn left(&self, i: usize) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn right(&self, i: usize) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking error_handling v0.1.0 (/opt/rustwide/workdir/crates/error_handling)
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stdout] warning: methods `length` and `is_empty` are never used
[INFO] [stdout]   --> crates/linkedlist/src/lib.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<T> LinkedList<T> {
[INFO] [stdout]    | --------------------- methods in this implementation
[INFO] [stdout] 36 |     fn length(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TreeNode` is never used
[INFO] [stdout]  --> crates/binary_tree/src/lib.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type TreeNode<T> = Box<Node<T>>;
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tree` is never constructed
[INFO] [stdout]  --> crates/binary_tree/src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Tree<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> crates/binary_tree/src/lib.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Node<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `insert` are never used
[INFO] [stdout]   --> crates/binary_tree/src/lib.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<T: Ord> Node<T> {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 21 |     fn new(value: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn insert(&mut self, node: TreeNode<T>) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert`, and `sum_tree` are never used
[INFO] [stdout]   --> crates/binary_tree/src/lib.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl<T: Ord + Add<Output=T> + Default + Copy> Tree<T> {
[INFO] [stdout]    | ----------------------------------------------------- associated items in this implementation
[INFO] [stdout] 57 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn insert(&mut self, value: T) -> &mut Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     fn sum_tree(&self) -> T {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking macros v0.1.0 (/opt/rustwide/workdir/crates/macros)
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]    Compiling gherkin v0.14.0
[INFO] [stderr]     Checking cucumber v0.20.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.22s
[INFO] running `Command { std: "docker" "inspect" "a79b96899cd450e91b31fca3b1c073413fd67fe8d7f931e46676c202544a0db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79b96899cd450e91b31fca3b1c073413fd67fe8d7f931e46676c202544a0db0", kill_on_drop: false }`
[INFO] [stdout] a79b96899cd450e91b31fca3b1c073413fd67fe8d7f931e46676c202544a0db0
