[INFO] cloning repository https://github.com/kwannoel/algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kwannoel/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwannoel%2Falgorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwannoel%2Falgorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb2884575239529b0da700522461e460036cc012
[INFO] checking kwannoel/algorithms against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwannoel%2Falgorithms" "/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/kwannoel/algorithms on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kwannoel/algorithms
[INFO] finished tweaking git repo https://github.com/kwannoel/algorithms
[INFO] tweaked toml for git repo https://github.com/kwannoel/algorithms written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kwannoel/algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 881c2902579e69c0fbaf7befa8c215023918b2ff46bea309bc97ea4eaf3d11c6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "881c2902579e69c0fbaf7befa8c215023918b2ff46bea309bc97ea4eaf3d11c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "881c2902579e69c0fbaf7befa8c215023918b2ff46bea309bc97ea4eaf3d11c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "881c2902579e69c0fbaf7befa8c215023918b2ff46bea309bc97ea4eaf3d11c6", kill_on_drop: false }`
[INFO] [stdout] 881c2902579e69c0fbaf7befa8c215023918b2ff46bea309bc97ea4eaf3d11c6
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8385cd0ee04879b49ab9c3653ab48651737a6d30ea133ada08e3b7054632fa3c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8385cd0ee04879b49ab9c3653ab48651737a6d30ea133ada08e3b7054632fa3c", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mid`
[INFO] [stdout]   --> src/sort/merge_sort.rs:50:63
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn iterative_merge_sort(mut arr: &mut Vec<i32>, l: usize, mid: usize, r: usize) {
[INFO] [stdout]    |                                                               ^^^ help: if this is intentional, prefix it with an underscore: `_mid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mid`
[INFO] [stdout]   --> src/sort/merge_sort.rs:50:63
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn iterative_merge_sort(mut arr: &mut Vec<i32>, l: usize, mid: usize, r: usize) {
[INFO] [stdout]    |                                                               ^^^ help: if this is intentional, prefix it with an underscore: `_mid`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bubble_sort`
[INFO] [stdout]  --> src/sort/bubble_sort.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn bubble_sort(arr: &mut [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: `merge_sort`
[INFO] [stdout]   --> src/sort/merge_sort.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn merge_sort(arr: Vec<i32>) -> Vec<i32>{
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `merge`
[INFO] [stdout]   --> src/sort/merge_sort.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn merge(arr1: Vec<i32>, arr2: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `iterative_merge_sort`
[INFO] [stdout]   --> src/sort/merge_sort.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn iterative_merge_sort(mut arr: &mut Vec<i32>, l: usize, mid: usize, r: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `insertion_sort`
[INFO] [stdout]  --> src/sort/insertion_sort.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn insertion_sort(arr: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `selection_sort`
[INFO] [stdout]  --> src/sort/selection_sort.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn selection_sort(arr: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_sort`
[INFO] [stdout]  --> src/sort/quick_sort.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn quick_sort(arr: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `knuth_shuffle`
[INFO] [stdout]  --> src/shuffle.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn knuth_shuffle(arr: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newPos` should have a snake case name
[INFO] [stdout]  --> src/shuffle.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let newPos = rng.gen_range(0, i);
[INFO] [stdout]   |             ^^^^^^ help: convert the identifier to snake case: `new_pos`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `iterative_merge_sort_wrap`
[INFO] [stdout]    --> src/sort/merge_sort.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn iterative_merge_sort_wrap(arr: &mut [i32]) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newPos` should have a snake case name
[INFO] [stdout]  --> src/shuffle.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let newPos = rng.gen_range(0, i);
[INFO] [stdout]   |             ^^^^^^ help: convert the identifier to snake case: `new_pos`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "8385cd0ee04879b49ab9c3653ab48651737a6d30ea133ada08e3b7054632fa3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8385cd0ee04879b49ab9c3653ab48651737a6d30ea133ada08e3b7054632fa3c", kill_on_drop: false }`
[INFO] [stdout] 8385cd0ee04879b49ab9c3653ab48651737a6d30ea133ada08e3b7054632fa3c