Dec 04 17:25:33.072 INFO checking ickshonpe/rust-data-structures against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 17:25:33.072 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 17:25:33.732 INFO [stdout] 57e9e27d434316556d2305c7b11c27defa5cc1c7404ec450adf6020f7801c07c
Dec 04 17:25:33.733 INFO running `"docker" "start" "-a" "57e9e27d434316556d2305c7b11c27defa5cc1c7404ec450adf6020f7801c07c"`
Dec 04 17:25:34.771 INFO [stderr] usermod: no changes
Dec 04 17:25:34.847 INFO [stderr]     Checking rayon-core v1.2.1
Dec 04 17:25:35.695 INFO [stderr]     Checking rayon v0.8.2
Dec 04 17:25:38.046 INFO [stderr]     Checking data-structures v0.1.0 (/source)
Dec 04 17:25:38.543 INFO [stderr] warning: unused import: `std::mem`
Dec 04 17:25:38.543 INFO [stderr]  --> src/list.rs:1:5
Dec 04 17:25:38.543 INFO [stderr]   |
Dec 04 17:25:38.543 INFO [stderr] 1 | use std::mem;
Dec 04 17:25:38.543 INFO [stderr]   |     ^^^^^^^^
Dec 04 17:25:38.543 INFO [stderr]   |
Dec 04 17:25:38.543 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 17:25:38.543 INFO [stderr] 
Dec 04 17:25:38.547 INFO [stderr] warning: unused import: `list::*`
Dec 04 17:25:38.547 INFO [stderr]   --> src/main.rs:11:5
Dec 04 17:25:38.547 INFO [stderr]    |
Dec 04 17:25:38.547 INFO [stderr] 11 | use list::*;
Dec 04 17:25:38.547 INFO [stderr]    |     ^^^^^^^
Dec 04 17:25:38.547 INFO [stderr] 
Dec 04 17:25:38.565 INFO [stderr] warning: unused import: `std::mem`
Dec 04 17:25:38.565 INFO [stderr]  --> src/list.rs:1:5
Dec 04 17:25:38.565 INFO [stderr]   |
Dec 04 17:25:38.565 INFO [stderr] 1 | use std::mem;
Dec 04 17:25:38.565 INFO [stderr]   |     ^^^^^^^^
Dec 04 17:25:38.565 INFO [stderr]   |
Dec 04 17:25:38.565 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 17:25:38.565 INFO [stderr] 
Dec 04 17:25:38.565 INFO [stderr] warning: unused import: `list::*`
Dec 04 17:25:38.565 INFO [stderr]   --> src/main.rs:11:5
Dec 04 17:25:38.565 INFO [stderr]    |
Dec 04 17:25:38.565 INFO [stderr] 11 | use list::*;
Dec 04 17:25:38.565 INFO [stderr]    |     ^^^^^^^
Dec 04 17:25:38.565 INFO [stderr] 
Dec 04 17:25:38.691 INFO [stderr] warning: function is never used: `merge_sort`
Dec 04 17:25:38.691 INFO [stderr]  --> src/merge_sort.rs:2:1
Dec 04 17:25:38.691 INFO [stderr]   |
Dec 04 17:25:38.691 INFO [stderr] 2 | pub fn merge_sort<T: PartialOrd + Copy>(xs: &[T]) -> Vec<T> {
Dec 04 17:25:38.691 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.691 INFO [stderr]   |
Dec 04 17:25:38.691 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 17:25:38.691 INFO [stderr] 
Dec 04 17:25:38.691 INFO [stderr] warning: function is never used: `merge`
Dec 04 17:25:38.691 INFO [stderr]   --> src/merge_sort.rs:14:1
Dec 04 17:25:38.691 INFO [stderr]    |
Dec 04 17:25:38.691 INFO [stderr] 14 | pub fn merge<T: PartialOrd + Copy>(mut left: &[T], mut right: &[T]) -> Vec<T> {
Dec 04 17:25:38.691 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.691 INFO [stderr] 
Dec 04 17:25:38.691 INFO [stderr] warning: function is never used: `id`
Dec 04 17:25:38.691 INFO [stderr]  --> src/tricks.rs:4:1
Dec 04 17:25:38.691 INFO [stderr]   |
Dec 04 17:25:38.691 INFO [stderr] 4 | pub fn id<T>(x: T) -> T {
Dec 04 17:25:38.691 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.691 INFO [stderr] 
Dec 04 17:25:38.691 INFO [stderr] warning: type alias is never used: `Link`
Dec 04 17:25:38.691 INFO [stderr]  --> src/list.rs:4:1
Dec 04 17:25:38.691 INFO [stderr]   |
Dec 04 17:25:38.691 INFO [stderr] 4 | type Link<T> = Option<Box<Node<T>>>;
Dec 04 17:25:38.691 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.691 INFO [stderr] 
Dec 04 17:25:38.692 INFO [stderr] warning: method is never used: `back`
Dec 04 17:25:38.692 INFO [stderr]   --> src/list.rs:67:5
Dec 04 17:25:38.692 INFO [stderr]    |
Dec 04 17:25:38.692 INFO [stderr] 67 |     fn back(&mut self) -> &mut Link<T> {
Dec 04 17:25:38.692 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.692 INFO [stderr] 
Dec 04 17:25:38.692 INFO [stderr] warning: method is never used: `back_id`
Dec 04 17:25:38.692 INFO [stderr]   --> src/list.rs:77:5
Dec 04 17:25:38.692 INFO [stderr]    |
Dec 04 17:25:38.692 INFO [stderr] 77 |     fn back_id(&mut self) -> &mut Link<T> {
Dec 04 17:25:38.692 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.692 INFO [stderr] 
Dec 04 17:25:38.692 INFO [stderr] warning: method is never used: `back_tmp`
Dec 04 17:25:38.692 INFO [stderr]   --> src/list.rs:87:5
Dec 04 17:25:38.692 INFO [stderr]    |
Dec 04 17:25:38.692 INFO [stderr] 87 |     fn back_tmp(&mut self) -> &mut Link<T> {
Dec 04 17:25:38.692 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.693 INFO [stderr] 
Dec 04 17:25:38.693 INFO [stderr] warning: function is never used: `quick_sort`
Dec 04 17:25:38.693 INFO [stderr]  --> src/quick_sort_slice.rs:5:1
Dec 04 17:25:38.693 INFO [stderr]   |
Dec 04 17:25:38.693 INFO [stderr] 5 | pub fn quick_sort<T: PartialOrd>(data: &mut [T]) {
Dec 04 17:25:38.693 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.693 INFO [stderr] 
Dec 04 17:25:38.693 INFO [stderr] warning: function is never used: `partition`
Dec 04 17:25:38.693 INFO [stderr]   --> src/quick_sort_slice.rs:13:1
Dec 04 17:25:38.693 INFO [stderr]    |
Dec 04 17:25:38.693 INFO [stderr] 13 | fn partition<T: PartialOrd>(data: &mut [T]) -> usize {
Dec 04 17:25:38.693 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.693 INFO [stderr] 
Dec 04 17:25:38.693 INFO [stderr] warning: function is never used: `example`
Dec 04 17:25:38.693 INFO [stderr]   --> src/quick_sort_slice.rs:28:1
Dec 04 17:25:38.693 INFO [stderr]    |
Dec 04 17:25:38.693 INFO [stderr] 28 | pub fn example() {
Dec 04 17:25:38.694 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 17:25:38.697 INFO [stderr] 
Dec 04 17:25:38.697 INFO [stderr] warning: function is never used: `quick_sort`
Dec 04 17:25:38.697 INFO [stderr]  --> src/parallel_quick_sort.rs:6:1
Dec 04 17:25:38.697 INFO [stderr]   |
Dec 04 17:25:38.697 INFO [stderr] 6 | pub fn quick_sort<T: PartialOrd + std::marker::Send>(data: &mut [T]) {
Dec 04 17:25:38.697 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.697 INFO [stderr] 
Dec 04 17:25:38.697 INFO [stderr] warning: function is never used: `split_at_exclusive_mut`
Dec 04 17:25:38.697 INFO [stderr]   --> src/parallel_quick_sort.rs:18:1
Dec 04 17:25:38.697 INFO [stderr]    |
Dec 04 17:25:38.697 INFO [stderr] 18 | pub fn split_at_exclusive_mut<T>(data: &mut [T], p: usize) -> (&mut [T], &mut [T]) {
Dec 04 17:25:38.697 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.697 INFO [stderr] 
Dec 04 17:25:38.697 INFO [stderr] warning: function is never used: `partition`
Dec 04 17:25:38.697 INFO [stderr]   --> src/parallel_quick_sort.rs:24:1
Dec 04 17:25:38.697 INFO [stderr]    |
Dec 04 17:25:38.697 INFO [stderr] 24 | fn partition<T: PartialOrd>(data: &mut [T]) -> usize {
Dec 04 17:25:38.697 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.697 INFO [stderr] 
Dec 04 17:25:38.697 INFO [stderr] warning: function is never used: `example`
Dec 04 17:25:38.697 INFO [stderr]   --> src/parallel_quick_sort.rs:39:1
Dec 04 17:25:38.697 INFO [stderr]    |
Dec 04 17:25:38.697 INFO [stderr] 39 | pub fn example() {
Dec 04 17:25:38.697 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 17:25:38.697 INFO [stderr] 
Dec 04 17:25:38.875 INFO [stderr] warning: function is never used: `merge_sort`
Dec 04 17:25:38.876 INFO [stderr]  --> src/merge_sort.rs:2:1
Dec 04 17:25:38.876 INFO [stderr]   |
Dec 04 17:25:38.876 INFO [stderr] 2 | pub fn merge_sort<T: PartialOrd + Copy>(xs: &[T]) -> Vec<T> {
Dec 04 17:25:38.876 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr]   |
Dec 04 17:25:38.876 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: function is never used: `merge`
Dec 04 17:25:38.876 INFO [stderr]   --> src/merge_sort.rs:14:1
Dec 04 17:25:38.876 INFO [stderr]    |
Dec 04 17:25:38.876 INFO [stderr] 14 | pub fn merge<T: PartialOrd + Copy>(mut left: &[T], mut right: &[T]) -> Vec<T> {
Dec 04 17:25:38.876 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: function is never used: `id`
Dec 04 17:25:38.876 INFO [stderr]  --> src/tricks.rs:4:1
Dec 04 17:25:38.876 INFO [stderr]   |
Dec 04 17:25:38.876 INFO [stderr] 4 | pub fn id<T>(x: T) -> T {
Dec 04 17:25:38.876 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: type alias is never used: `Link`
Dec 04 17:25:38.876 INFO [stderr]  --> src/list.rs:4:1
Dec 04 17:25:38.876 INFO [stderr]   |
Dec 04 17:25:38.876 INFO [stderr] 4 | type Link<T> = Option<Box<Node<T>>>;
Dec 04 17:25:38.876 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: method is never used: `back`
Dec 04 17:25:38.876 INFO [stderr]   --> src/list.rs:67:5
Dec 04 17:25:38.876 INFO [stderr]    |
Dec 04 17:25:38.876 INFO [stderr] 67 |     fn back(&mut self) -> &mut Link<T> {
Dec 04 17:25:38.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: method is never used: `back_id`
Dec 04 17:25:38.876 INFO [stderr]   --> src/list.rs:77:5
Dec 04 17:25:38.876 INFO [stderr]    |
Dec 04 17:25:38.876 INFO [stderr] 77 |     fn back_id(&mut self) -> &mut Link<T> {
Dec 04 17:25:38.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: method is never used: `back_tmp`
Dec 04 17:25:38.876 INFO [stderr]   --> src/list.rs:87:5
Dec 04 17:25:38.876 INFO [stderr]    |
Dec 04 17:25:38.876 INFO [stderr] 87 |     fn back_tmp(&mut self) -> &mut Link<T> {
Dec 04 17:25:38.876 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: function is never used: `example`
Dec 04 17:25:38.876 INFO [stderr]   --> src/quick_sort_slice.rs:28:1
Dec 04 17:25:38.876 INFO [stderr]    |
Dec 04 17:25:38.876 INFO [stderr] 28 | pub fn example() {
Dec 04 17:25:38.876 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.876 INFO [stderr] warning: function is never used: `example`
Dec 04 17:25:38.876 INFO [stderr]   --> src/parallel_quick_sort.rs:39:1
Dec 04 17:25:38.876 INFO [stderr]    |
Dec 04 17:25:38.876 INFO [stderr] 39 | pub fn example() {
Dec 04 17:25:38.876 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 17:25:38.876 INFO [stderr] 
Dec 04 17:25:38.917 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.12s
Dec 04 17:25:38.929 INFO [stderr] su: No module specific data is present
Dec 04 17:25:39.354 INFO running `"docker" "inspect" "57e9e27d434316556d2305c7b11c27defa5cc1c7404ec450adf6020f7801c07c"`
Dec 04 17:25:39.461 INFO running `"docker" "rm" "-f" "57e9e27d434316556d2305c7b11c27defa5cc1c7404ec450adf6020f7801c07c"`
Dec 04 17:25:39.564 INFO [stdout] 57e9e27d434316556d2305c7b11c27defa5cc1c7404ec450adf6020f7801c07c