[INFO] cloning repository https://github.com/miptildar/rust-leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miptildar/rust-leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiptildar%2Frust-leetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiptildar%2Frust-leetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57fbdf6b3ab61502182b49c07608b53e62aa5fc7
[INFO] checking miptildar/rust-leetcode against try#04ea1e1f1a12cfa912c228ca278237d92d0bb6df for pr-148477-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiptildar%2Frust-leetcode" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/miptildar/rust-leetcode
[INFO] finished tweaking git repo https://github.com/miptildar/rust-leetcode
[INFO] tweaked toml for git repo https://github.com/miptildar/rust-leetcode written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/miptildar/rust-leetcode on toolchain 04ea1e1f1a12cfa912c228ca278237d92d0bb6df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/miptildar/rust-leetcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1fc3b5a62ea82dbe46daf0df4c49fe0a17d58b1cff134e554ea43e5669f6c3a
[INFO] running `Command { std: "docker" "start" "-a" "e1fc3b5a62ea82dbe46daf0df4c49fe0a17d58b1cff134e554ea43e5669f6c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1fc3b5a62ea82dbe46daf0df4c49fe0a17d58b1cff134e554ea43e5669f6c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1fc3b5a62ea82dbe46daf0df4c49fe0a17d58b1cff134e554ea43e5669f6c3a", kill_on_drop: false }`
[INFO] [stdout] e1fc3b5a62ea82dbe46daf0df4c49fe0a17d58b1cff134e554ea43e5669f6c3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+04ea1e1f1a12cfa912c228ca278237d92d0bb6df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56dc61afdcaab989baee535e70fef05f5ca49fb1ba9e11e25bccfccebddece9a
[INFO] running `Command { std: "docker" "start" "-a" "56dc61afdcaab989baee535e70fef05f5ca49fb1ba9e11e25bccfccebddece9a", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/remove_duplicates_from_sorted_array.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if (current_index >= nums.len()) {
[INFO] [stdout]    |            ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 17 -         if (current_index >= nums.len()) {
[INFO] [stdout] 17 +         if current_index >= nums.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/remove_duplicates_from_sorted_array.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if (left_value == current_value) {
[INFO] [stdout]    |            ^                           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -         if (left_value == current_value) {
[INFO] [stdout] 22 +         if left_value == current_value {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/rotate_image.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |             if (visited[i as usize][j as usize]) {
[INFO] [stdout]    |                ^                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             if (visited[i as usize][j as usize]) {
[INFO] [stdout] 32 +             if visited[i as usize][j as usize] {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/rotate_image.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |         if (removed.is_some()) {
[INFO] [stdout]    |            ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         if (removed.is_some()) {
[INFO] [stdout] 59 +         if removed.is_some() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/remove_duplicates_from_sorted_array.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if (current_index >= nums.len()) {
[INFO] [stdout]    |            ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 17 -         if (current_index >= nums.len()) {
[INFO] [stdout] 17 +         if current_index >= nums.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/remove_duplicates_from_sorted_array.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if (left_value == current_value) {
[INFO] [stdout]    |            ^                           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -         if (left_value == current_value) {
[INFO] [stdout] 22 +         if left_value == current_value {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/rotate_image.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |             if (visited[i as usize][j as usize]) {
[INFO] [stdout]    |                ^                               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             if (visited[i as usize][j as usize]) {
[INFO] [stdout] 32 +             if visited[i as usize][j as usize] {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/arrays/rotate_image.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |         if (removed.is_some()) {
[INFO] [stdout]    |            ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -         if (removed.is_some()) {
[INFO] [stdout] 59 +         if removed.is_some() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/arrays/remove_duplicates_from_sorted_array.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut left_index: usize = 0;
[INFO] [stdout]   |         ----^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_index`
[INFO] [stdout]  --> src/arrays/remove_duplicates_from_sorted_array.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut left_index: usize = 0;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_index`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rotate4`
[INFO] [stdout]   --> src/arrays/rotate_image.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let rotate4 = Solution::rotate_value(matrix, rotate3.0, rotate3.1, Some(rotate3.2));
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rotate4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/arrays/remove_duplicates_from_sorted_array.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let i = remove_duplicates(&mut nums);
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/arrays/remove_duplicates_from_sorted_array.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut left_index: usize = 0;
[INFO] [stdout]   |         ----^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_index`
[INFO] [stdout]  --> src/arrays/remove_duplicates_from_sorted_array.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut left_index: usize = 0;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rotate4`
[INFO] [stdout]   --> src/arrays/rotate_image.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |             let rotate4 = Solution::rotate_value(matrix, rotate3.0, rotate3.1, Some(rotate3.2));
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rotate4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `remove_duplicates` is never used
[INFO] [stdout]  --> src/arrays/remove_duplicates_from_sorted_array.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/arrays/rotate_image.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `rotate`, `find_rotated_position`, and `rotate_value` are never used
[INFO] [stdout]   --> src/arrays/rotate_image.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 16 |     pub fn rotate(matrix: &mut Vec<Vec<i32>>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn find_rotated_position(i1: i32, j1: i32, n: i32) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn rotate_value(matrix: &mut Vec<Vec<i32>>, i1: i32, j1: i32, removed: Option<i32>) -> (i32, i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/arrays/group_anagrams.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `A_CODE`, `group_anagrams`, and `calculate` are never used
[INFO] [stdout]   --> src/arrays/group_anagrams.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Solution {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 20 |     const A_CODE: u8 = 'a' as u8;
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     pub fn group_anagrams(strs: Vec<String>) -> Vec<Vec<String>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn calculate(s: &str) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/heap/relative_ranks.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `GOLD`, `SILVER`, `BRONZE`, `find_relative_ranks`, and `convert` are never used
[INFO] [stdout]   --> src/heap/relative_ranks.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Solution {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 10 |
[INFO] [stdout] 11 |     const GOLD: &'static str = "Gold Medal";
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 12 |     const SILVER: &'static str = "Silver Medal";
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 13 |     const BRONZE: &'static str = "Bronze Medal";
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub fn find_relative_ranks(score: Vec<i32>) -> Vec<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn convert(counter: i32) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Heap` is never constructed
[INFO] [stdout]   --> src/heap/relative_ranks.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct Heap {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `get_max` are never used
[INFO] [stdout]   --> src/heap/relative_ranks.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl Heap {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 58 |
[INFO] [stdout] 59 |     fn new(players_count: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn add(&mut self, player: Player) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn get_max(&mut self) -> Option<Player> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]    --> src/heap/relative_ranks.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | struct Player {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/heap/relative_ranks.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 131 | impl Player {
[INFO] [stdout]     | ----------- associated function in this implementation
[INFO] [stdout] 132 |     fn new(index: usize, rank: i32) -> Player {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "56dc61afdcaab989baee535e70fef05f5ca49fb1ba9e11e25bccfccebddece9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56dc61afdcaab989baee535e70fef05f5ca49fb1ba9e11e25bccfccebddece9a", kill_on_drop: false }`
[INFO] [stdout] 56dc61afdcaab989baee535e70fef05f5ca49fb1ba9e11e25bccfccebddece9a