Dec 19 15:51:28.181 INFO checking ickshonpe/rust-data-structures against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:51:28.181 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ickshonpe/rust-data-structures:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:51:28.616 INFO [stdout] f11b61b558a7d7d917ae972fe8684bb6f61a8d232777b18cf3a1fb9c63385c51
Dec 19 15:51:28.620 INFO running `"docker" "start" "-a" "f11b61b558a7d7d917ae972fe8684bb6f61a8d232777b18cf3a1fb9c63385c51"`
Dec 19 15:51:30.532 INFO [stderr]     Checking data-structures v0.1.0 (/opt/crater/workdir)
Dec 19 15:51:31.064 INFO [stderr] warning: unused import: `std::mem`
Dec 19 15:51:31.064 INFO [stderr]  --> src/list.rs:1:5
Dec 19 15:51:31.064 INFO [stderr]   |
Dec 19 15:51:31.064 INFO [stderr] 1 | use std::mem;
Dec 19 15:51:31.064 INFO [stderr]   |     ^^^^^^^^
Dec 19 15:51:31.064 INFO [stderr]   |
Dec 19 15:51:31.064 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:51:31.064 INFO [stderr] 
Dec 19 15:51:31.064 INFO [stderr] warning: unused import: `list::*`
Dec 19 15:51:31.064 INFO [stderr]   --> src/main.rs:11:5
Dec 19 15:51:31.064 INFO [stderr]    |
Dec 19 15:51:31.064 INFO [stderr] 11 | use list::*;
Dec 19 15:51:31.064 INFO [stderr]    |     ^^^^^^^
Dec 19 15:51:31.064 INFO [stderr] 
Dec 19 15:51:31.092 INFO [stderr] warning: unused import: `std::mem`
Dec 19 15:51:31.092 INFO [stderr]  --> src/list.rs:1:5
Dec 19 15:51:31.092 INFO [stderr]   |
Dec 19 15:51:31.092 INFO [stderr] 1 | use std::mem;
Dec 19 15:51:31.092 INFO [stderr]   |     ^^^^^^^^
Dec 19 15:51:31.092 INFO [stderr]   |
Dec 19 15:51:31.092 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:51:31.092 INFO [stderr] 
Dec 19 15:51:31.101 INFO [stderr] warning: unused import: `list::*`
Dec 19 15:51:31.101 INFO [stderr]   --> src/main.rs:11:5
Dec 19 15:51:31.101 INFO [stderr]    |
Dec 19 15:51:31.102 INFO [stderr] 11 | use list::*;
Dec 19 15:51:31.102 INFO [stderr]    |     ^^^^^^^
Dec 19 15:51:31.102 INFO [stderr] 
Dec 19 15:51:31.448 INFO [stderr] warning: function is never used: `merge_sort`
Dec 19 15:51:31.449 INFO [stderr]  --> src/merge_sort.rs:2:1
Dec 19 15:51:31.449 INFO [stderr]   |
Dec 19 15:51:31.449 INFO [stderr] 2 | pub fn merge_sort<T: PartialOrd + Copy>(xs: &[T]) -> Vec<T> {
Dec 19 15:51:31.449 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr]   |
Dec 19 15:51:31.449 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `merge`
Dec 19 15:51:31.449 INFO [stderr]   --> src/merge_sort.rs:14:1
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 14 | pub fn merge<T: PartialOrd + Copy>(mut left: &[T], mut right: &[T]) -> Vec<T> {
Dec 19 15:51:31.449 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `id`
Dec 19 15:51:31.449 INFO [stderr]  --> src/tricks.rs:4:1
Dec 19 15:51:31.449 INFO [stderr]   |
Dec 19 15:51:31.449 INFO [stderr] 4 | pub fn id<T>(x: T) -> T {
Dec 19 15:51:31.449 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: type alias is never used: `Link`
Dec 19 15:51:31.449 INFO [stderr]  --> src/list.rs:4:1
Dec 19 15:51:31.449 INFO [stderr]   |
Dec 19 15:51:31.449 INFO [stderr] 4 | type Link<T> = Option<Box<Node<T>>>;
Dec 19 15:51:31.449 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: method is never used: `back`
Dec 19 15:51:31.449 INFO [stderr]   --> src/list.rs:67:5
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 67 |     fn back(&mut self) -> &mut Link<T> {
Dec 19 15:51:31.449 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: method is never used: `back_id`
Dec 19 15:51:31.449 INFO [stderr]   --> src/list.rs:77:5
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 77 |     fn back_id(&mut self) -> &mut Link<T> {
Dec 19 15:51:31.449 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: method is never used: `back_tmp`
Dec 19 15:51:31.449 INFO [stderr]   --> src/list.rs:87:5
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 87 |     fn back_tmp(&mut self) -> &mut Link<T> {
Dec 19 15:51:31.449 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `quick_sort`
Dec 19 15:51:31.449 INFO [stderr]  --> src/quick_sort_slice.rs:5:1
Dec 19 15:51:31.449 INFO [stderr]   |
Dec 19 15:51:31.449 INFO [stderr] 5 | pub fn quick_sort<T: PartialOrd>(data: &mut [T]) {
Dec 19 15:51:31.449 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `partition`
Dec 19 15:51:31.449 INFO [stderr]   --> src/quick_sort_slice.rs:13:1
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 13 | fn partition<T: PartialOrd>(data: &mut [T]) -> usize {
Dec 19 15:51:31.449 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `example`
Dec 19 15:51:31.449 INFO [stderr]   --> src/quick_sort_slice.rs:28:1
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 28 | pub fn example() {
Dec 19 15:51:31.449 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `quick_sort`
Dec 19 15:51:31.449 INFO [stderr]  --> src/parallel_quick_sort.rs:6:1
Dec 19 15:51:31.449 INFO [stderr]   |
Dec 19 15:51:31.449 INFO [stderr] 6 | pub fn quick_sort<T: PartialOrd + std::marker::Send>(data: &mut [T]) {
Dec 19 15:51:31.449 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `split_at_exclusive_mut`
Dec 19 15:51:31.449 INFO [stderr]   --> src/parallel_quick_sort.rs:18:1
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 18 | pub fn split_at_exclusive_mut<T>(data: &mut [T], p: usize) -> (&mut [T], &mut [T]) {
Dec 19 15:51:31.449 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `partition`
Dec 19 15:51:31.449 INFO [stderr]   --> src/parallel_quick_sort.rs:24:1
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.449 INFO [stderr] 24 | fn partition<T: PartialOrd>(data: &mut [T]) -> usize {
Dec 19 15:51:31.449 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.449 INFO [stderr] 
Dec 19 15:51:31.449 INFO [stderr] warning: function is never used: `example`
Dec 19 15:51:31.449 INFO [stderr]   --> src/parallel_quick_sort.rs:39:1
Dec 19 15:51:31.449 INFO [stderr]    |
Dec 19 15:51:31.450 INFO [stderr] 39 | pub fn example() {
Dec 19 15:51:31.450 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 15:51:31.450 INFO [stderr] 
Dec 19 15:51:31.508 INFO [stderr] warning: function is never used: `merge_sort`
Dec 19 15:51:31.508 INFO [stderr]  --> src/merge_sort.rs:2:1
Dec 19 15:51:31.508 INFO [stderr]   |
Dec 19 15:51:31.508 INFO [stderr] 2 | pub fn merge_sort<T: PartialOrd + Copy>(xs: &[T]) -> Vec<T> {
Dec 19 15:51:31.508 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.508 INFO [stderr]   |
Dec 19 15:51:31.508 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:51:31.508 INFO [stderr] 
Dec 19 15:51:31.508 INFO [stderr] warning: function is never used: `merge`
Dec 19 15:51:31.508 INFO [stderr]   --> src/merge_sort.rs:14:1
Dec 19 15:51:31.509 INFO [stderr]    |
Dec 19 15:51:31.509 INFO [stderr] 14 | pub fn merge<T: PartialOrd + Copy>(mut left: &[T], mut right: &[T]) -> Vec<T> {
Dec 19 15:51:31.509 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: function is never used: `id`
Dec 19 15:51:31.509 INFO [stderr]  --> src/tricks.rs:4:1
Dec 19 15:51:31.509 INFO [stderr]   |
Dec 19 15:51:31.509 INFO [stderr] 4 | pub fn id<T>(x: T) -> T {
Dec 19 15:51:31.509 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: type alias is never used: `Link`
Dec 19 15:51:31.509 INFO [stderr]  --> src/list.rs:4:1
Dec 19 15:51:31.509 INFO [stderr]   |
Dec 19 15:51:31.509 INFO [stderr] 4 | type Link<T> = Option<Box<Node<T>>>;
Dec 19 15:51:31.509 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: method is never used: `back`
Dec 19 15:51:31.509 INFO [stderr]   --> src/list.rs:67:5
Dec 19 15:51:31.509 INFO [stderr]    |
Dec 19 15:51:31.509 INFO [stderr] 67 |     fn back(&mut self) -> &mut Link<T> {
Dec 19 15:51:31.509 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: method is never used: `back_id`
Dec 19 15:51:31.509 INFO [stderr]   --> src/list.rs:77:5
Dec 19 15:51:31.509 INFO [stderr]    |
Dec 19 15:51:31.509 INFO [stderr] 77 |     fn back_id(&mut self) -> &mut Link<T> {
Dec 19 15:51:31.509 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: method is never used: `back_tmp`
Dec 19 15:51:31.509 INFO [stderr]   --> src/list.rs:87:5
Dec 19 15:51:31.509 INFO [stderr]    |
Dec 19 15:51:31.509 INFO [stderr] 87 |     fn back_tmp(&mut self) -> &mut Link<T> {
Dec 19 15:51:31.509 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: function is never used: `example`
Dec 19 15:51:31.509 INFO [stderr]   --> src/quick_sort_slice.rs:28:1
Dec 19 15:51:31.509 INFO [stderr]    |
Dec 19 15:51:31.509 INFO [stderr] 28 | pub fn example() {
Dec 19 15:51:31.509 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.509 INFO [stderr] warning: function is never used: `example`
Dec 19 15:51:31.509 INFO [stderr]   --> src/parallel_quick_sort.rs:39:1
Dec 19 15:51:31.509 INFO [stderr]    |
Dec 19 15:51:31.509 INFO [stderr] 39 | pub fn example() {
Dec 19 15:51:31.509 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 15:51:31.509 INFO [stderr] 
Dec 19 15:51:31.550 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 19 15:51:32.097 INFO running `"docker" "inspect" "f11b61b558a7d7d917ae972fe8684bb6f61a8d232777b18cf3a1fb9c63385c51"`
Dec 19 15:51:32.284 INFO running `"docker" "rm" "-f" "f11b61b558a7d7d917ae972fe8684bb6f61a8d232777b18cf3a1fb9c63385c51"`
Dec 19 15:51:32.584 INFO [stdout] f11b61b558a7d7d917ae972fe8684bb6f61a8d232777b18cf3a1fb9c63385c51