[INFO] updating cached repository https://github.com/fa93hws/CLRS
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 4769559c01ba94faca574f197aee351400f49abd
[INFO] testing fa93hws/CLRS against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffa93hws%2FCLRS" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fa93hws/CLRS on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fa93hws/CLRS
[INFO] finished tweaking git repo https://github.com/fa93hws/CLRS
[INFO] tweaked toml for git repo https://github.com/fa93hws/CLRS written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/fa93hws/CLRS already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 20259c4df0b3514e9496f203f422e3b969d3da29c3f0cab808841ae8d8dd23f6
[INFO] running `"docker" "start" "-a" "20259c4df0b3514e9496f203f422e3b969d3da29c3f0cab808841ae8d8dd23f6"`
[INFO] [stderr]    Compiling clrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `sort`
[INFO] [stderr]  --> src/sort/quick_sort.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn sort(arr: &mut Vec<i32>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sort_rec`
[INFO] [stderr]  --> src/sort/quick_sort.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sort_rec(arr: &mut Vec<i32>, begin: usize, end: usize) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `partition`
[INFO] [stderr]   --> src/sort/quick_sort.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn partition(arr: &mut Vec<i32>, begin: usize, end: usize, pivot: usize) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MaxHeap`
[INFO] [stderr]  --> src/my_collections/heap/array_heap.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct MaxHeap {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `panic_if_empty`
[INFO] [stderr]  --> src/my_collections/heap/array_heap.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn panic_if_empty(arr: &Vec<i32>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn new(arr: &Vec<i32>) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `size`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn size(&self) -> usize { self.array.len() }
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_max`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   pub fn get_max(&self) -> i32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `extract_max`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |   pub fn extract_max(&mut self) -> i32 {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `increase_key`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   pub fn increase_key(&mut self, idx: usize, value: i32) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   pub fn insert(&mut self, value: i32) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `delete`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:57:3
[INFO] [stderr]    |
[INFO] [stderr] 57 |   pub fn delete(&mut self, idx: usize) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_parent`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:86:1
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn find_parent(idx: usize) -> usize { idx >> 1 }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Stack`
[INFO] [stderr]  --> src/my_collections/stack.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Stack<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `capacity`
[INFO] [stderr]   --> src/my_collections/stack.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn capacity(&self) -> usize {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `with_capacity`
[INFO] [stderr]   --> src/my_collections/stack.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn with_capacity(capacity: usize) -> Self {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/my_collections/stack.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   pub fn push(&mut self, item: T) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/my_collections/stack.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   pub fn pop(&mut self) -> Option<T> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek`
[INFO] [stderr]   --> src/my_collections/stack.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub fn peek(&self) -> Option<&T> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/my_collections/stack.rs:56:3
[INFO] [stderr]    |
[INFO] [stderr] 56 |   pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_full`
[INFO] [stderr]   --> src/my_collections/stack.rs:60:3
[INFO] [stderr]    |
[INFO] [stderr] 60 |   pub fn is_full(&self) -> bool {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_n_smallest_in_vec`
[INFO] [stderr]  --> src/others/n_smallest/mod.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_n_smallest_in_vec(vec: &Vec<i32>, n: usize) -> Vec<i32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "20259c4df0b3514e9496f203f422e3b969d3da29c3f0cab808841ae8d8dd23f6"`
[INFO] running `"docker" "rm" "-f" "20259c4df0b3514e9496f203f422e3b969d3da29c3f0cab808841ae8d8dd23f6"`
[INFO] [stdout] 20259c4df0b3514e9496f203f422e3b969d3da29c3f0cab808841ae8d8dd23f6
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 957b7870f82293ee42e57bc07af2117d24e6797126e55e24a4d4b27a3ae1e04f
[INFO] running `"docker" "start" "-a" "957b7870f82293ee42e57bc07af2117d24e6797126e55e24a4d4b27a3ae1e04f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling clrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `sort`
[INFO] [stderr]  --> src/sort/quick_sort.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn sort(arr: &mut Vec<i32>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sort_rec`
[INFO] [stderr]  --> src/sort/quick_sort.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sort_rec(arr: &mut Vec<i32>, begin: usize, end: usize) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_max_subarray_rec`
[INFO] [stderr]    --> src/max_subarray/binary_search.rs:100:3
[INFO] [stderr]     |
[INFO] [stderr] 100 |   fn find_max_subarray_rec() {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/my_collections/heap/array_heap.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   pub fn insert(&mut self, value: i32) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `"docker" "inspect" "957b7870f82293ee42e57bc07af2117d24e6797126e55e24a4d4b27a3ae1e04f"`
[INFO] running `"docker" "rm" "-f" "957b7870f82293ee42e57bc07af2117d24e6797126e55e24a4d4b27a3ae1e04f"`
[INFO] [stdout] 957b7870f82293ee42e57bc07af2117d24e6797126e55e24a4d4b27a3ae1e04f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 16262e02b7c462ac6963d1009d0a21965348ad0ea0053221bc4408e6969c8d29
[INFO] running `"docker" "start" "-a" "16262e02b7c462ac6963d1009d0a21965348ad0ea0053221bc4408e6969c8d29"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/clrs-14df8fb956c56a43
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test max_subarray::binary_search::tests::find_max_crossing_subarray ... ok
[INFO] [stdout] test max_subarray::brute_force::tests::empty ... ok
[INFO] [stdout] test max_subarray::binary_search::tests::transform ... ok
[INFO] [stdout] test max_subarray::brute_force::tests::simple ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::delete ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::find_left_child ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::extract_max_from_empty ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::find_parent ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::find_right_child ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::heap_new ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::increase_key ... ok
[INFO] [stdout] test my_collections::stack::tests::can_push_till_full ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::max_heapify ... ok
[INFO] [stdout] test my_collections::stack::tests::capacity ... ok
[INFO] [stdout] test my_collections::stack::tests::const_capacity_after_push ... ok
[INFO] [stdout] test my_collections::stack::tests::empty_stack_is_empty ... ok
[INFO] [stdout] test my_collections::stack::tests::push_and_peek ... ok
[INFO] [stdout] test my_collections::stack::tests::push_and_pop ... ok
[INFO] [stdout] test my_collections::stack::tests::const_capacity_after_pop ... ok
[INFO] [stdout] test others::n_smallest::tests::empty_array ... ok
[INFO] [stdout] test my_collections::stack::tests::full_stack_is_full ... ok
[INFO] [stdout] test others::n_smallest::tests::n_smallest_in_array ... ok
[INFO] [stdout] test sort::quick_sort::tests::partition ... ok
[INFO] [stdout] test my_collections::stack::tests::pop_and_push ... ok
[INFO] [stdout] test others::n_smallest::tests::n_larger_than_array_size ... ok
[INFO] [stdout] test test_utils::test_case::test::new ... ok
[INFO] [stdout] test test_utils::creation::test::create_random_i32_vector ... ok
[INFO] [stdout] test sort::quick_sort::tests::sort ... ok
[INFO] [stdout] test my_collections::stack::tests::can_not_push_after_full ... ok
[INFO] [stdout] test sort::heap_sort::tests::sort ... ok
[INFO] [stdout] test sort::insert_sort::tests::sort ... ok
[INFO] [stdout] test sort::merge_sort::tests::sort ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::get_max_from_empty ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::extract_max ... ok
[INFO] [stdout] test my_collections::heap::array_heap::test::delete_invalid ... ok
[INFO] [stdout] test max_subarray::iteration::tests::find ... ok
[INFO] [stdout] test max_subarray::binary_search::tests::find ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "16262e02b7c462ac6963d1009d0a21965348ad0ea0053221bc4408e6969c8d29"`
[INFO] running `"docker" "rm" "-f" "16262e02b7c462ac6963d1009d0a21965348ad0ea0053221bc4408e6969c8d29"`
[INFO] [stdout] 16262e02b7c462ac6963d1009d0a21965348ad0ea0053221bc4408e6969c8d29