[INFO] updating cached repository https://github.com/sebashack/rust_algorithms
[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] c47517018269755592bf41ed2ea2db6853031938
[INFO] testing sebashack/rust_algorithms against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebashack%2Frust_algorithms" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebashack/rust_algorithms on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sebashack/rust_algorithms
[INFO] finished tweaking git repo https://github.com/sebashack/rust_algorithms
[INFO] tweaked toml for git repo https://github.com/sebashack/rust_algorithms written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sebashack/rust_algorithms already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stdout] d1abd3b900cd4e3b60ca4591f89d0d1ab6de2fb186cc92f2323adba460288c06
[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" "d1abd3b900cd4e3b60ca4591f89d0d1ab6de2fb186cc92f2323adba460288c06"`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[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 rust_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 val,
[INFO] [stderr]    |                 ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BST`
[INFO] [stderr]  --> src/algorithms/binary_search_tree.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum BST<K, V> {
[INFO] [stderr]   |      ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(key: K, val: V) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `put`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn put(&mut self, k: K, v: V) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn get(&self, k: K) -> Option<&V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::array_stack`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rust_algorithms::algorithms::array_stack;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_find`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rust_algorithms::algorithms::connectivity_quick_find;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_union`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rust_algorithms::algorithms::connectivity_quick_union;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_union_improved`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rust_algorithms::algorithms::connectivity_quick_union_improved;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::linked_list_stack`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rust_algorithms::algorithms::linked_list_stack;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.99s
[INFO] running `"docker" "inspect" "d1abd3b900cd4e3b60ca4591f89d0d1ab6de2fb186cc92f2323adba460288c06"`
[INFO] running `"docker" "rm" "-f" "d1abd3b900cd4e3b60ca4591f89d0d1ab6de2fb186cc92f2323adba460288c06"`
[INFO] [stdout] d1abd3b900cd4e3b60ca4591f89d0d1ab6de2fb186cc92f2323adba460288c06
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7a8bdb17975780f48d549ae19c35449bfeff4e33edd64babe6f3937904e606c1
[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" "7a8bdb17975780f48d549ae19c35449bfeff4e33edd64babe6f3937904e606c1"`
[INFO] [stderr]    Compiling rust_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 val,
[INFO] [stderr]    |                 ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BST`
[INFO] [stderr]  --> src/algorithms/binary_search_tree.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum BST<K, V> {
[INFO] [stderr]   |      ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(key: K, val: V) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `put`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn put(&mut self, k: K, v: V) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn get(&self, k: K) -> Option<&V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::array_stack`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rust_algorithms::algorithms::array_stack;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_find`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rust_algorithms::algorithms::connectivity_quick_find;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_union`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rust_algorithms::algorithms::connectivity_quick_union;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_union_improved`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rust_algorithms::algorithms::connectivity_quick_union_improved;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::linked_list_stack`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rust_algorithms::algorithms::linked_list_stack;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::algorithms::linked_list_stack::ConsumerIter`
[INFO] [stderr]    --> src/algorithms/linked_list_stack.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     use crate::algorithms::linked_list_stack::ConsumerIter;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]    --> src/algorithms/sorting.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |     use rand::Rng;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 val,
[INFO] [stderr]    |                 ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/algorithms/linked_list_queue.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |         for i in 0..1000 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/algorithms/linked_list_queue.rs:233:13
[INFO] [stderr]     |
[INFO] [stderr] 233 |         for i in 0..25 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.45s
[INFO] running `"docker" "inspect" "7a8bdb17975780f48d549ae19c35449bfeff4e33edd64babe6f3937904e606c1"`
[INFO] running `"docker" "rm" "-f" "7a8bdb17975780f48d549ae19c35449bfeff4e33edd64babe6f3937904e606c1"`
[INFO] [stdout] 7a8bdb17975780f48d549ae19c35449bfeff4e33edd64babe6f3937904e606c1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] 2332336e948bc1fc93ebaace8e49ce7159237fb72748cbfca4e2caf244c51bab
[INFO] running `"docker" "start" "-a" "2332336e948bc1fc93ebaace8e49ce7159237fb72748cbfca4e2caf244c51bab"`
[INFO] [stderr] warning: unused import: `crate::algorithms::linked_list_stack::ConsumerIter`
[INFO] [stderr]    --> src/algorithms/linked_list_stack.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     use crate::algorithms::linked_list_stack::ConsumerIter;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]    --> src/algorithms/sorting.rs:313:9
[INFO] [stderr]     |
[INFO] [stderr] 313 |     use rand::Rng;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 val,
[INFO] [stderr]    |                 ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |                 val,
[INFO] [stderr]    |                 ^^^ help: try ignoring the field: `val: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/algorithms/linked_list_queue.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |         for i in 0..1000 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BST`
[INFO] [stderr]  --> src/algorithms/binary_search_tree.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum BST<K, V> {
[INFO] [stderr]   |      ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(key: K, val: V) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/algorithms/linked_list_queue.rs:233:13
[INFO] [stderr]     |
[INFO] [stderr] 233 |         for i in 0..25 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `put`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn put(&mut self, k: K, v: V) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/algorithms/binary_search_tree.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn get(&self, k: K) -> Option<&V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `CUTOFF` should have a snake case name
[INFO] [stderr]    --> src/algorithms/sorting.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 |     let CUTOFF = 20;
[INFO] [stderr]     |         ^^^^^^ help: convert the identifier to snake case: `cutoff`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::array_stack`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rust_algorithms::algorithms::array_stack;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_find`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rust_algorithms::algorithms::connectivity_quick_find;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_union`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rust_algorithms::algorithms::connectivity_quick_union;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::connectivity_quick_union_improved`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rust_algorithms::algorithms::connectivity_quick_union_improved;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rust_algorithms::algorithms::linked_list_stack`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rust_algorithms::algorithms::linked_list_stack;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_algorithms-da87548cad4e88a4
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test algorithms::connectivity_quick_union_improved::tests::correctly_determines_connections ... ok
[INFO] [stdout] test algorithms::binary_search_tree::tests::interface_operations_should_work_as_expected ... ok
[INFO] [stdout] test algorithms::linked_list_queue::tests::iter_should_traverse_the_queue_without_consuming_it ... ok
[INFO] [stdout] test algorithms::linked_list_stack::tests::interface_operations_should_work_as_expected ... ok
[INFO] [stdout] test algorithms::linked_list_stack::tests::iter_should_traverse_the_stack_without_consuming_it ... ok
[INFO] [stdout] test algorithms::array_stack::tests::iter_should_traverse_the_stack_while_mutating_it ... ok
[INFO] [stdout] test algorithms::priority_queue::tests::interface_operations_for_min_priority_queue_should_work_as_expected ... ok
[INFO] [stdout] test algorithms::sorting::tests::insertion_sort_by_should_sort_the_vector ... ok
[INFO] [stdout] test algorithms::array_stack::tests::into_iter_should_consume_the_stack ... ok
[INFO] [stdout] test algorithms::array_stack::tests::iter_should_traverse_the_stack_without_consuming_it ... ok
[INFO] [stdout] test algorithms::priority_queue::tests::interface_operations_for_max_priority_queue_should_work_as_expected ... ok
[INFO] [stdout] test algorithms::array_stack::tests::interface_operations_should_work_as_expected ... ok
[INFO] [stdout] test algorithms::linked_list_stack::tests::iter_should_traverse_the_stack_while_mutating_it ... ok
[INFO] [stdout] test algorithms::linked_list_queue::tests::iter_should_traverse_the_queue_while_mutating_it ... ok
[INFO] [stdout] test algorithms::linked_list_queue::tests::into_iter_should_consume_the_queue ... ok
[INFO] [stdout] test algorithms::linked_list_stack::tests::into_iter_should_consume_the_stack ... ok
[INFO] [stdout] test algorithms::connectivity_quick_union::tests::correctly_determines_connections ... ok
[INFO] [stdout] test algorithms::connectivity_quick_find::tests::correctly_determines_connections ... ok
[INFO] [stdout] test algorithms::sorting::tests::selection_sort_by_should_sort_the_vector ... ok
[INFO] [stdout] test algorithms::linked_list_queue::tests::interface_operations_should_work_as_expected ... ok
[INFO] [stdout] test algorithms::sorting::tests::quick_sort_by_should_sort_the_vector ... ok
[INFO] [stdout] test algorithms::sorting::tests::shell_sort_by_should_sort_the_vector ... ok
[INFO] [stdout] test algorithms::sorting::tests::bottom_up_merge_sort_by_should_sort_the_vector ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_algorithms-a30309272ae12b21
[INFO] [stdout] test algorithms::sorting::tests::merge_sort_by_should_sort_the_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]    Doc-tests rust_algorithms
[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" "2332336e948bc1fc93ebaace8e49ce7159237fb72748cbfca4e2caf244c51bab"`
[INFO] running `"docker" "rm" "-f" "2332336e948bc1fc93ebaace8e49ce7159237fb72748cbfca4e2caf244c51bab"`
[INFO] [stdout] 2332336e948bc1fc93ebaace8e49ce7159237fb72748cbfca4e2caf244c51bab