[INFO] updating cached repository https://github.com/benbachem/se02
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 374648f9073ce9440509dcb88136c6d290804231
[INFO] testing benbachem/se02 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbachem%2Fse02" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benbachem/se02 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/benbachem/se02
[INFO] finished tweaking git repo https://github.com/benbachem/se02
[INFO] tweaked toml for git repo https://github.com/benbachem/se02 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/benbachem/se02 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 871e9d1a12824cee14d7f40c225fdd1f4b9e743894b1aeef050fab08fd816c72
[INFO] running `"docker" "start" "-a" "871e9d1a12824cee14d7f40c225fdd1f4b9e743894b1aeef050fab08fd816c72"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling algos-data-structures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/sorting_algorithms.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for j in 1..list.len() {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `do_collide`
[INFO] [stderr]   --> src/applications/collision_detection.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let do_collide = false;
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_do_collide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Entry::Vacant(v) => 0,
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_sorted`
[INFO] [stderr]  --> src/sorting_algorithms.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn is_sorted<T: PartialOrd>(input: &Vec<T>) -> bool {
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stupid_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn stupid_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bubblesort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn bubblesort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `selection_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn selection_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `insertion_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn insertion_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn merge_sort<T: PartialOrd + Copy + std::fmt::Debug>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quick_sort`
[INFO] [stderr]    --> src/sorting_algorithms.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn quick_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/binary_tree.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node<T: PartialOrd> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BinaryTree`
[INFO] [stderr]  --> src/structures/binary_tree.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct BinaryTree<T: PartialOrd> {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/structures/binary_tree.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn add(&mut self, value: T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/structures/binary_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_in_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn traverse_depth_first_in_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_pre_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn traverse_depth_first_pre_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_post_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn traverse_depth_first_post_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/structures/binary_tree.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn new() -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/structures/binary_tree.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn add(&mut self, value: T) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]    --> src/structures/binary_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_in_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn traverse_depth_first_in_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_pre_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn traverse_depth_first_pre_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_post_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn traverse_depth_first_post_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_breath_first`
[INFO] [stderr]    --> src/structures/binary_tree.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn traverse_breath_first(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ContentLeaf`
[INFO] [stderr]   --> src/structures/quad_tree.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ContentLeaf(Vec<Point>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LinkLeaf`
[INFO] [stderr]   --> src/structures/quad_tree.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     LinkLeaf {
[INFO] [stderr] 17 | |         northwest: Box<Quadtree>,
[INFO] [stderr] 18 | |         northeast: Box<Quadtree>,
[INFO] [stderr] 19 | |         southwest: Box<Quadtree>,
[INFO] [stderr] 20 | |         southeast: Box<Quadtree>,
[INFO] [stderr] 21 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `subdivide`
[INFO] [stderr]   --> src/structures/quad_tree.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn subdivide(&mut self, dividers: Point, capacity: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/structures/quad_tree.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn insert(&mut self, value: Point, dividers: Point, capacity: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/structures/quad_tree.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn new(capacity: usize, dividers: Point) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]    --> src/structures/quad_tree.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn insert(&mut self, value: Point) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_groups`
[INFO] [stderr]    --> src/structures/quad_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn get_groups(&self) -> Vec<&Vec<Point>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/queue.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Queue`
[INFO] [stderr]  --> src/structures/queue.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Queue {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/structures/queue.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/structures/queue.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn push(&mut self, value: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/structures/queue.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn pop(&mut self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/stack.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Stack`
[INFO] [stderr]  --> src/structures/stack.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Stack {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/structures/stack.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/structures/stack.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn push(&mut self, value: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/structures/stack.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn pop(&mut self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Field`
[INFO] [stderr]  --> src/applications/collision_detection.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Field {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step`
[INFO] [stderr]   --> src/applications/collision_detection.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn step(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_words`
[INFO] [stderr]  --> src/applications/hashmap/dailyprogrammer_366.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn load_words() -> HashMap<String, Option<usize>> {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `funnel`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn funnel(words: &mut HashMap<String, Option<usize>>, word: &str) -> usize {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 45 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.90s
[INFO] running `"docker" "inspect" "871e9d1a12824cee14d7f40c225fdd1f4b9e743894b1aeef050fab08fd816c72"`
[INFO] running `"docker" "rm" "-f" "871e9d1a12824cee14d7f40c225fdd1f4b9e743894b1aeef050fab08fd816c72"`
[INFO] [stdout] 871e9d1a12824cee14d7f40c225fdd1f4b9e743894b1aeef050fab08fd816c72
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b6a1cb43cc18400e865e8ac6dc21172867e62122a358b8ec65d0dc33b777abe2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b6a1cb43cc18400e865e8ac6dc21172867e62122a358b8ec65d0dc33b777abe2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/sorting_algorithms.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for j in 1..list.len() {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `do_collide`
[INFO] [stderr]   --> src/applications/collision_detection.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let do_collide = false;
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_do_collide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Entry::Vacant(v) => 0,
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_sorted`
[INFO] [stderr]  --> src/sorting_algorithms.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn is_sorted<T: PartialOrd>(input: &Vec<T>) -> bool {
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stupid_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn stupid_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bubblesort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn bubblesort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `selection_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn selection_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `insertion_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn insertion_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn merge_sort<T: PartialOrd + Copy + std::fmt::Debug>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quick_sort`
[INFO] [stderr]    --> src/sorting_algorithms.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn quick_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/binary_tree.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node<T: PartialOrd> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BinaryTree`
[INFO] [stderr]  --> src/structures/binary_tree.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct BinaryTree<T: PartialOrd> {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/structures/binary_tree.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn add(&mut self, value: T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/structures/binary_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_in_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn traverse_depth_first_in_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_pre_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn traverse_depth_first_pre_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_post_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn traverse_depth_first_post_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/structures/binary_tree.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn new() -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/structures/binary_tree.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn add(&mut self, value: T) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]    --> src/structures/binary_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_in_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn traverse_depth_first_in_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_pre_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn traverse_depth_first_pre_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_post_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn traverse_depth_first_post_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_breath_first`
[INFO] [stderr]    --> src/structures/binary_tree.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn traverse_breath_first(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ContentLeaf`
[INFO] [stderr]   --> src/structures/quad_tree.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ContentLeaf(Vec<Point>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LinkLeaf`
[INFO] [stderr]   --> src/structures/quad_tree.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     LinkLeaf {
[INFO] [stderr] 17 | |         northwest: Box<Quadtree>,
[INFO] [stderr] 18 | |         northeast: Box<Quadtree>,
[INFO] [stderr] 19 | |         southwest: Box<Quadtree>,
[INFO] [stderr] 20 | |         southeast: Box<Quadtree>,
[INFO] [stderr] 21 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `subdivide`
[INFO] [stderr]   --> src/structures/quad_tree.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn subdivide(&mut self, dividers: Point, capacity: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/structures/quad_tree.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn insert(&mut self, value: Point, dividers: Point, capacity: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/structures/quad_tree.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn new(capacity: usize, dividers: Point) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]    --> src/structures/quad_tree.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn insert(&mut self, value: Point) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_groups`
[INFO] [stderr]    --> src/structures/quad_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn get_groups(&self) -> Vec<&Vec<Point>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/queue.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Queue`
[INFO] [stderr]  --> src/structures/queue.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Queue {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/structures/queue.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/structures/queue.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn push(&mut self, value: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/structures/queue.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn pop(&mut self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/stack.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Stack`
[INFO] [stderr]  --> src/structures/stack.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Stack {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/structures/stack.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/structures/stack.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn push(&mut self, value: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/structures/stack.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn pop(&mut self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Field`
[INFO] [stderr]  --> src/applications/collision_detection.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Field {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step`
[INFO] [stderr]   --> src/applications/collision_detection.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn step(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_words`
[INFO] [stderr]  --> src/applications/hashmap/dailyprogrammer_366.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn load_words() -> HashMap<String, Option<usize>> {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `funnel`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn funnel(words: &mut HashMap<String, Option<usize>>, word: &str) -> usize {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 45 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling algos-data-structures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/sorting_algorithms.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for j in 1..list.len() {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `do_collide`
[INFO] [stderr]   --> src/applications/collision_detection.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let do_collide = false;
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_do_collide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Entry::Vacant(v) => 0,
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bubblesort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn bubblesort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/structures/binary_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]    --> src/structures/binary_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_breath_first`
[INFO] [stderr]    --> src/structures/binary_tree.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn traverse_breath_first(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `"docker" "inspect" "b6a1cb43cc18400e865e8ac6dc21172867e62122a358b8ec65d0dc33b777abe2"`
[INFO] running `"docker" "rm" "-f" "b6a1cb43cc18400e865e8ac6dc21172867e62122a358b8ec65d0dc33b777abe2"`
[INFO] [stdout] b6a1cb43cc18400e865e8ac6dc21172867e62122a358b8ec65d0dc33b777abe2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dda3249afa5ce080164d228ce524a45318b3e43ac02358936f1d64bffedc6972
[INFO] running `"docker" "start" "-a" "dda3249afa5ce080164d228ce524a45318b3e43ac02358936f1d64bffedc6972"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/sorting_algorithms.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for j in 1..list.len() {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `do_collide`
[INFO] [stderr]   --> src/applications/collision_detection.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let do_collide = false;
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_do_collide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Entry::Vacant(v) => 0,
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_sorted`
[INFO] [stderr]  --> src/sorting_algorithms.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn is_sorted<T: PartialOrd>(input: &Vec<T>) -> bool {
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stupid_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn stupid_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bubblesort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn bubblesort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `selection_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn selection_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `insertion_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn insertion_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `merge_sort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn merge_sort<T: PartialOrd + Copy + std::fmt::Debug>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quick_sort`
[INFO] [stderr]    --> src/sorting_algorithms.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn quick_sort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/binary_tree.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node<T: PartialOrd> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BinaryTree`
[INFO] [stderr]  --> src/structures/binary_tree.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct BinaryTree<T: PartialOrd> {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/structures/binary_tree.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn add(&mut self, value: T) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/structures/binary_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_in_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn traverse_depth_first_in_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_pre_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn traverse_depth_first_pre_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_post_order`
[INFO] [stderr]   --> src/structures/binary_tree.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn traverse_depth_first_post_order(&self, vec: &mut Vec<T>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/structures/binary_tree.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn new() -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/structures/binary_tree.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn add(&mut self, value: T) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]    --> src/structures/binary_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_in_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn traverse_depth_first_in_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_pre_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn traverse_depth_first_pre_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_depth_first_post_order`
[INFO] [stderr]    --> src/structures/binary_tree.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn traverse_depth_first_post_order(&self) -> Vec<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_breath_first`
[INFO] [stderr]    --> src/structures/binary_tree.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn traverse_breath_first(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ContentLeaf`
[INFO] [stderr]   --> src/structures/quad_tree.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ContentLeaf(Vec<Point>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LinkLeaf`
[INFO] [stderr]   --> src/structures/quad_tree.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     LinkLeaf {
[INFO] [stderr] 17 | |         northwest: Box<Quadtree>,
[INFO] [stderr] 18 | |         northeast: Box<Quadtree>,
[INFO] [stderr] 19 | |         southwest: Box<Quadtree>,
[INFO] [stderr] 20 | |         southeast: Box<Quadtree>,
[INFO] [stderr] 21 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `subdivide`
[INFO] [stderr]   --> src/structures/quad_tree.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn subdivide(&mut self, dividers: Point, capacity: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/structures/quad_tree.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn insert(&mut self, value: Point, dividers: Point, capacity: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/structures/quad_tree.rs:114:5
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn new(capacity: usize, dividers: Point) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]    --> src/structures/quad_tree.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn insert(&mut self, value: Point) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_groups`
[INFO] [stderr]    --> src/structures/quad_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn get_groups(&self) -> Vec<&Vec<Point>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/queue.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Queue`
[INFO] [stderr]  --> src/structures/queue.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Queue {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/structures/queue.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/structures/queue.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn push(&mut self, value: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/structures/queue.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn pop(&mut self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/structures/stack.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Stack`
[INFO] [stderr]  --> src/structures/stack.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Stack {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/structures/stack.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/structures/stack.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn push(&mut self, value: i32) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/structures/stack.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn pop(&mut self) -> Option<i32> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Field`
[INFO] [stderr]  --> src/applications/collision_detection.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Field {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `step`
[INFO] [stderr]   --> src/applications/collision_detection.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn step(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_words`
[INFO] [stderr]  --> src/applications/hashmap/dailyprogrammer_366.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn load_words() -> HashMap<String, Option<usize>> {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `funnel`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn funnel(words: &mut HashMap<String, Option<usize>>, word: &str) -> usize {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 45 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]   --> src/sorting_algorithms.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     for j in 1..list.len() {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `do_collide`
[INFO] [stderr]   --> src/applications/collision_detection.rs:44:21
[INFO] [stderr]    |
[INFO] [stderr] 44 |                 let do_collide = false;
[INFO] [stderr]    |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_do_collide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/applications/hashmap/dailyprogrammer_366.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 |         Entry::Vacant(v) => 0,
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bubblesort`
[INFO] [stderr]   --> src/sorting_algorithms.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn bubblesort<T: PartialOrd + Copy>(list: &mut Vec<T>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]   --> src/structures/binary_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contains`
[INFO] [stderr]    --> src/structures/binary_tree.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn contains(&self, value: T) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `traverse_breath_first`
[INFO] [stderr]    --> src/structures/binary_tree.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn traverse_breath_first(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/algos_data_structures-fe828e639ce75af7
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test sorting_algorithms::tests::test_insertion_sort ... ok
[INFO] [stdout] test sorting_algorithms::tests::test_quick_sort ... ok
[INFO] [stdout] test structures::quad_tree::tests::insert_less_than_capacity ... ok
[INFO] [stdout] test sorting_algorithms::tests::test_merge_sort ... ok
[INFO] [stdout] test structures::queue::tests::test ... ok
[INFO] [stdout] test structures::binary_tree::tests::test ... ok
[INFO] [stdout] test sorting_algorithms::tests::test_selection_sort ... ok
[INFO] [stdout] test structures::singly_linked_list::tests::test ... ok
[INFO] [stdout] test structures::stack::tests::test ... ok
[INFO] [stdout] test structures::quad_tree::tests::insert_thousand_items ... ok
[INFO] [stdout] test applications::hashmap::dailyprogrammer_366::tests::funnel_length ... ok
[INFO] [stdout] test sorting_algorithms::tests::test_stupid_sort ... ok
[INFO] [stdout] test sorting_algorithms::tests::test_bubble_sort ... ok
[INFO] [stdout] test applications::collision_detection::tests::collision_detection ... test applications::collision_detection::tests::collision_detection has been running for over 60 seconds
[INFO] [stdout] test applications::collision_detection::tests::collision_detection ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algos-data-structures
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "dda3249afa5ce080164d228ce524a45318b3e43ac02358936f1d64bffedc6972"`
[INFO] running `"docker" "rm" "-f" "dda3249afa5ce080164d228ce524a45318b3e43ac02358936f1d64bffedc6972"`
[INFO] [stdout] dda3249afa5ce080164d228ce524a45318b3e43ac02358936f1d64bffedc6972