[INFO] cloning repository https://github.com/Farteen/rust_algorithm_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Farteen/rust_algorithm_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarteen%2Frust_algorithm_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarteen%2Frust_algorithm_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86e6d1ecd023d7989f511561d4cb4676bf5e5bce
[INFO] checking Farteen/rust_algorithm_learning against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarteen%2Frust_algorithm_learning" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Farteen/rust_algorithm_learning on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Farteen/rust_algorithm_learning
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/Farteen/rust_algorithm_learning
[INFO] tweaked toml for git repo https://github.com/Farteen/rust_algorithm_learning written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Farteen/rust_algorithm_learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b671a82cd347bb144e4ecfab70572fd7584a808f536a3347d11fd1ff446d17c7
[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" "b671a82cd347bb144e4ecfab70572fd7584a808f536a3347d11fd1ff446d17c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b671a82cd347bb144e4ecfab70572fd7584a808f536a3347d11fd1ff446d17c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b671a82cd347bb144e4ecfab70572fd7584a808f536a3347d11fd1ff446d17c7", kill_on_drop: false }`
[INFO] [stdout] b671a82cd347bb144e4ecfab70572fd7584a808f536a3347d11fd1ff446d17c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f056b536a534466e831a738d95f833c3cdbdaeffa1165f9ad9d71238b1e786f
[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" "1f056b536a534466e831a738d95f833c3cdbdaeffa1165f9ad9d71238b1e786f", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::string::ToString`
[INFO] [stdout]   --> test/basic/test_ref_cell_mock.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     use std::string::ToString;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> test/pattern/test_refutability.rs:67:45
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Message::Hello { id: id_variable @ 3...7 } => {
[INFO] [stdout]    |                                             ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> test/pattern/test_refutability.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |         Message::Hello { id: 10...12} => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]   --> test/basic/test_box_deref_trait.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let d = CustomSmartPointer { data: String::from("other stuff")};
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> test/basic/test_box_deref_trait.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> test/basic/test_box_deref_trait.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> test/basic/test_ref_cell_mock.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn send(&self, msg: &str) {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> test/sort/bubble_sort.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     for i in (0..length).rev() {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> test/sort/merge_sort.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn sort_process(arr: &[i32], l: i32, r: i32) {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> test/sort/heap_sort.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for i in 0..length {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `counter`
[INFO] [stdout]   --> test/concurrent/test_state_sharing.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let counter = Rc::new(Mutex::new(0));
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_counter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_option_value`
[INFO] [stdout]  --> test/pattern/test_refutability.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let some_option_value: Option<i32> = None;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_option_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum_of_squares`
[INFO] [stdout]   --> test/pattern/test_refutability.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let sum_of_squares: i32 = points
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sum_of_squares`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> test/pattern/test_refutability.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 |         Message::Hello {id} => {
[INFO] [stdout]    |                         ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]  --> test/advance_unsafe/test_unsafe_raw_pointer.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let r1 = &num as *const i32;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r2`
[INFO] [stdout]  --> test/advance_unsafe/test_unsafe_raw_pointer.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let r2 = &mut num as *mut i32;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> test/advance_unsafe/test_unsafe_raw_pointer.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let r = address as *const i32;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> test/sort/bubble_sort.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let mut target = arr.clone();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> test/sort/merge_sort.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut target = arr.clone();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `send`
[INFO] [stdout]   --> test/basic/test_ref_cell_mock.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn send(&self, msg: &str) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bubble_sort_from_end`
[INFO] [stdout]   --> test/sort/bubble_sort.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn bubble_sort_from_end(arr: &Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sort_process`
[INFO] [stdout]   --> test/sort/merge_sort.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn sort_process(arr: &[i32], l: i32, r: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `heap_sort`
[INFO] [stdout]  --> test/sort/heap_sort.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn heap_sort(arr: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `AveragedCollection`
[INFO] [stdout]  --> test/oop/test_oop_collection.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct AveragedCollection {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]  --> test/oop/test_oop_collection.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn add(&mut self, value: i32){
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove`
[INFO] [stdout]   --> test/oop/test_oop_collection.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn remove(&mut self) -> Option<i32> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `average`
[INFO] [stdout]   --> test/oop/test_oop_collection.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn average(&self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_average`
[INFO] [stdout]   --> test/oop/test_oop_collection.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn update_average(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `center`
[INFO] [stdout]   --> test/oop/test_trait_morphism.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     center: Point,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `radius`
[INFO] [stdout]   --> test/oop/test_trait_morphism.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     radius: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lt`
[INFO] [stdout]   --> test/oop/test_trait_morphism.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     lt: Point,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> test/oop/test_trait_morphism.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     width: i32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> test/oop/test_trait_morphism.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     height: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `outerIndex` should have a snake case name
[INFO] [stdout]   --> test/sort/bubble_sort.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     for outerIndex in 0..length-1 {
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `outer_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `innerIndex` should have a snake case name
[INFO] [stdout]   --> test/sort/bubble_sort.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         for innerIndex in outerIndex..length - 1 {
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `inner_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `leftValue` should have a snake case name
[INFO] [stdout]   --> test/sort/bubble_sort.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let leftValue = target[innerIndex];
[INFO] [stdout]    |                 ^^^^^^^^^ help: convert the identifier to snake case: `left_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rightValue` should have a snake case name
[INFO] [stdout]   --> test/sort/bubble_sort.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let rightValue = target[innerIndex + 1];
[INFO] [stdout]    |                 ^^^^^^^^^^ help: convert the identifier to snake case: `right_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `leftValue` should have a snake case name
[INFO] [stdout]   --> test/sort/insertion_sort.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |             let leftValue = target[j - 1];
[INFO] [stdout]    |                 ^^^^^^^^^ help: convert the identifier to snake case: `left_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `currentValue` should have a snake case name
[INFO] [stdout]   --> test/sort/insertion_sort.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let currentValue = target[j];
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: convert the identifier to snake case: `current_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1f056b536a534466e831a738d95f833c3cdbdaeffa1165f9ad9d71238b1e786f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f056b536a534466e831a738d95f833c3cdbdaeffa1165f9ad9d71238b1e786f", kill_on_drop: false }`
[INFO] [stdout] 1f056b536a534466e831a738d95f833c3cdbdaeffa1165f9ad9d71238b1e786f