[INFO] cloning repository https://github.com/madd86/algorithms_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/madd86/algorithms_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadd86%2Falgorithms_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadd86%2Falgorithms_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2beac3ab02f8cf76cd8025be98bcb90bd0e4f7b7
[INFO] checking madd86/algorithms_in_rust against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadd86%2Falgorithms_in_rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/madd86/algorithms_in_rust on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/madd86/algorithms_in_rust
[INFO] finished tweaking git repo https://github.com/madd86/algorithms_in_rust
[INFO] tweaked toml for git repo https://github.com/madd86/algorithms_in_rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/madd86/algorithms_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b0c8861462f0ad7d3c6ca7bf6c8fe5fd6a025b632b11955b2af61aab156c1e1
[INFO] running `Command { std: "docker" "start" "-a" "1b0c8861462f0ad7d3c6ca7bf6c8fe5fd6a025b632b11955b2af61aab156c1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b0c8861462f0ad7d3c6ca7bf6c8fe5fd6a025b632b11955b2af61aab156c1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b0c8861462f0ad7d3c6ca7bf6c8fe5fd6a025b632b11955b2af61aab156c1e1", kill_on_drop: false }`
[INFO] [stdout] 1b0c8861462f0ad7d3c6ca7bf6c8fe5fd6a025b632b11955b2af61aab156c1e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc930e0e81ac01b64effcce710602c1a5a736001d707245c843cdbf596ac842b
[INFO] running `Command { std: "docker" "start" "-a" "cc930e0e81ac01b64effcce710602c1a5a736001d707245c843cdbf596ac842b", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithms_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `find_missing_number`
[INFO] [stdout]  --> src/bitwise_xor/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_missing_number(arr: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_non_duplicate`
[INFO] [stdout]   --> src/bitwise_xor/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn find_non_duplicate(arr: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cyclic_sort`
[INFO] [stdout]  --> src/cyclic_sort/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn cyclic_sort(nums: &mut Vec<usize>) -> Vec<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fruits_basket`
[INFO] [stdout]   --> src/sliding_window/mod.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn fruits_basket(arr: Vec<String>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_max_sum_window`
[INFO] [stdout]   --> src/sliding_window/mod.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn find_max_sum_window(k: i32, arr: Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_smallest_sum_window`
[INFO] [stdout]   --> src/sliding_window/mod.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn find_smallest_sum_window(target_sum: i32, arr: Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/binary_tree/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(value: T) -> BinaryTree<T> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/binary_tree/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn add(&mut self, value: T) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `search`
[INFO] [stdout]   --> src/binary_tree/mod.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn search(&self, target: T) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "cc930e0e81ac01b64effcce710602c1a5a736001d707245c843cdbf596ac842b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc930e0e81ac01b64effcce710602c1a5a736001d707245c843cdbf596ac842b", kill_on_drop: false }`
[INFO] [stdout] cc930e0e81ac01b64effcce710602c1a5a736001d707245c843cdbf596ac842b