[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] testing madd86/algorithms_in_rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmadd86%2Falgorithms_in_rust" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/madd86/algorithms_in_rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-64/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" "+1.55.0" "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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 848e9aa1758918250de4040682eae7bb6620c54787acc4543fabccedcf2b86fc
[INFO] running `Command { std: "docker" "start" "-a" "848e9aa1758918250de4040682eae7bb6620c54787acc4543fabccedcf2b86fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "848e9aa1758918250de4040682eae7bb6620c54787acc4543fabccedcf2b86fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "848e9aa1758918250de4040682eae7bb6620c54787acc4543fabccedcf2b86fc", kill_on_drop: false }`
[INFO] [stdout] 848e9aa1758918250de4040682eae7bb6620c54787acc4543fabccedcf2b86fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b91fef8dcb94104e8109f05aa3a2324fc3849bc06a7f4cf6d4814443f9b109e1
[INFO] running `Command { std: "docker" "start" "-a" "b91fef8dcb94104e8109f05aa3a2324fc3849bc06a7f4cf6d4814443f9b109e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "b91fef8dcb94104e8109f05aa3a2324fc3849bc06a7f4cf6d4814443f9b109e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91fef8dcb94104e8109f05aa3a2324fc3849bc06a7f4cf6d4814443f9b109e1", kill_on_drop: false }`
[INFO] [stdout] b91fef8dcb94104e8109f05aa3a2324fc3849bc06a7f4cf6d4814443f9b109e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1959dce2c5dba683947dfb2dfec07c11af3d04624bdc7c58db70a7c4d7927dc6
[INFO] running `Command { std: "docker" "start" "-a" "1959dce2c5dba683947dfb2dfec07c11af3d04624bdc7c58db70a7c4d7927dc6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling algorithms_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "1959dce2c5dba683947dfb2dfec07c11af3d04624bdc7c58db70a7c4d7927dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1959dce2c5dba683947dfb2dfec07c11af3d04624bdc7c58db70a7c4d7927dc6", kill_on_drop: false }`
[INFO] [stdout] 1959dce2c5dba683947dfb2dfec07c11af3d04624bdc7c58db70a7c4d7927dc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76cc15922743f0823c472e2116f0db4c538abc6dd37ea04b342cb8757d2aaa2f
[INFO] running `Command { std: "docker" "start" "-a" "76cc15922743f0823c472e2116f0db4c538abc6dd37ea04b342cb8757d2aaa2f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algorithms_in_rust-0da8ac1a2e78818c)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test binary_search::tests::found_number ... ok
[INFO] [stdout] test binary_search::tests::found_number_larger_array ... ok
[INFO] [stdout] test binary_search::tests::no_number ... ok
[INFO] [stdout] test binary_tree::tests::basics ... ok
[INFO] [stdout] test bitwise_xor::tests::find_non_duplicate_number ... ok
[INFO] [stdout] test cyclic_sort::tests::sort_numbers ... ok
[INFO] [stdout] test sliding_window::tests::get_max_window_size ... ok
[INFO] [stdout] test sliding_window::tests::get_smallest_window_size ... ok
[INFO] [stdout] test bitwise_xor::tests::find_number ... ok
[INFO] [stdout] test sliding_window::tests::get_fruits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76cc15922743f0823c472e2116f0db4c538abc6dd37ea04b342cb8757d2aaa2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76cc15922743f0823c472e2116f0db4c538abc6dd37ea04b342cb8757d2aaa2f", kill_on_drop: false }`
[INFO] [stdout] 76cc15922743f0823c472e2116f0db4c538abc6dd37ea04b342cb8757d2aaa2f