[INFO] cloning repository https://github.com/aranoverse/algorithm-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aranoverse/algorithm-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faranoverse%2Falgorithm-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faranoverse%2Falgorithm-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bde16b5227006cdbd4ea370a9c9759f082ed9030
[INFO] checking aranoverse/algorithm-rust against try#e071e73523bfcdcab2878dbf652ac8ebb9b9eee4 for pr-144386
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faranoverse%2Falgorithm-rust" "/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/aranoverse/algorithm-rust
[INFO] finished tweaking git repo https://github.com/aranoverse/algorithm-rust
[INFO] tweaked toml for git repo https://github.com/aranoverse/algorithm-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aranoverse/algorithm-rust on toolchain e071e73523bfcdcab2878dbf652ac8ebb9b9eee4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aranoverse/algorithm-rust 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" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd374da4466092a6e09b4ba9fafa2f37e3b6a92fa824653718f37b9275275b05
[INFO] running `Command { std: "docker" "start" "-a" "fd374da4466092a6e09b4ba9fafa2f37e3b6a92fa824653718f37b9275275b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd374da4466092a6e09b4ba9fafa2f37e3b6a92fa824653718f37b9275275b05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd374da4466092a6e09b4ba9fafa2f37e3b6a92fa824653718f37b9275275b05", kill_on_drop: false }`
[INFO] [stdout] fd374da4466092a6e09b4ba9fafa2f37e3b6a92fa824653718f37b9275275b05
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70b5fcddd7a2ebf46812fc8312e61354c980f2209be603e7f4abd663cc97d242
[INFO] running `Command { std: "docker" "start" "-a" "70b5fcddd7a2ebf46812fc8312e61354c980f2209be603e7f4abd663cc97d242", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking algorithm-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/solution/normal/tree/binary_tree_maximum_path_sum.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/solution/normal/tree/binary_tree_maximum_path_sum.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/solution/normal/tree/binary_tree_maximum_path_sum.rs:18:90
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn dfs_max_path_sum(node: &Option<Rc<RefCell<TreeNode>>>, max_path_sum: &mut i32) -> (i32) {
[INFO] [stdout]    |                                                                                          ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 - pub fn dfs_max_path_sum(node: &Option<Rc<RefCell<TreeNode>>>, max_path_sum: &mut i32) -> (i32) {
[INFO] [stdout] 18 + pub fn dfs_max_path_sum(node: &Option<Rc<RefCell<TreeNode>>>, max_path_sum: &mut i32) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/solution/dynamic_programming/triangle.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Shl`
[INFO] [stdout]  --> src/solution/dynamic_programming/counting_bits.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Shl;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/solution/dynamic_programming/jump_game_ii.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Add;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/solution/dynamic_programming/unique_paths.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |           ///  formula: grid_ways[i][j] = grid_ways[i-1][j]  + grid_ways[i][j-1]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 | /         for idx_m in 1..m {
[INFO] [stdout] 20 | |             for idx_n in 1..n {
[INFO] [stdout] 21 | |                 grid_ways[idx_m][idx_n] = grid_ways[idx_m - 1][idx_n] + grid_ways[idx_m][idx_n - 1];
[INFO] [stdout] 22 | |             }
[INFO] [stdout] 23 | |         }
[INFO] [stdout]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/solution/dynamic_programming/unique_paths_ii.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |           ///  formula: grid_ways[i][j] = grid_ways[i-1][j]  + grid_ways[i][j-1]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 | /         for idx_m in 1..m {
[INFO] [stdout] 40 | |             for idx_n in 1..n {
[INFO] [stdout] 41 | |                 if obstacle_grid[idx_m][idx_n] == 1 {
[INFO] [stdout] 42 | |                     grid_ways[idx_m][idx_n] = 0;
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |         }
[INFO] [stdout]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/solution/normal/minimum_windown_substring.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn min_window(s: String, t: String) -> String {
[INFO] [stdout]   |                       ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/solution/normal/minimum_windown_substring.rs:5:34
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn min_window(s: String, t: String) -> String {
[INFO] [stdout]   |                                  ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/solution/dynamic_programming/unique_paths_ii.rs:5:40
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn unique_paths_with_obstacles(mut obstacle_grid: Vec<Vec<i32>>) -> i32 {
[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: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solution/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Solution;
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/solution/normal/two_sum.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     /// https://leetcode.com/problems/two-sum
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `is_palindrome` and `is_palindrome_v2` are never used
[INFO] [stdout]   --> src/solution/normal/is_palindrome.rs:5:12
[INFO] [stdout]    |
[INFO] [stdout] 3  | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 4  |     /// https://leetcode.com/problems/palindrome-number/
[INFO] [stdout] 5  |     pub fn is_palindrome(x: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn is_palindrome_v2(x: i32) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeNode` is never constructed
[INFO] [stdout]  --> src/solution/normal/tree/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct TreeNode {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/solution/normal/tree/mod.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl TreeNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 16 |     #[inline]
[INFO] [stdout] 17 |     pub fn new(val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_balanced` is never used
[INFO] [stdout]  --> src/solution/normal/tree/binary_balance_tree.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     pub fn is_balanced(root: Option<Rc<RefCell<TreeNode>>>) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/solution/normal/tree/binary_balance_tree.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn dfs(node: &Option<Rc<RefCell<TreeNode>>>, depth: i32) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs_v2` is never used
[INFO] [stdout]   --> src/solution/normal/tree/binary_balance_tree.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn dfs_v2(node: &Option<Rc<RefCell<TreeNode>>>) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_depth` is never used
[INFO] [stdout]  --> src/solution/normal/tree/maximum_depth_of_binary_tree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 9 |     pub fn max_depth(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs` is never used
[INFO] [stdout]   --> src/solution/normal/tree/maximum_depth_of_binary_tree.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn dfs(node: &Option<Rc<RefCell<TreeNode>>>, depth: i32) -> i32 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_path_sum` is never used
[INFO] [stdout]   --> src/solution/normal/tree/binary_tree_maximum_path_sum.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn max_path_sum(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dfs_max_path_sum` is never used
[INFO] [stdout]   --> src/solution/normal/tree/binary_tree_maximum_path_sum.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn dfs_max_path_sum(node: &Option<Rc<RefCell<TreeNode>>>, max_path_sum: &mut i32) -> (i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `min_window` is never used
[INFO] [stdout]  --> src/solution/normal/minimum_windown_substring.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     // https://leetcode.com/problems/minimum-window-substring/
[INFO] [stdout] 5 |     pub fn min_window(s: String, t: String) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_perfect_square` is never used
[INFO] [stdout]  --> src/solution/normal/perfect.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn is_perfect_square(num: i32) -> bool {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `subsets` and `backtrack` are never used
[INFO] [stdout]   --> src/solution/backtracking/subsets.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 3  | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn subsets(nums: Vec<i32>) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     fn backtrack(nums: &Vec<i32>, start: usize, mut sub_list: Vec<i32>, subsets: &mut Vec<Vec<i32>>) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `minimum_total` is never used
[INFO] [stdout]   --> src/solution/dynamic_programming/triangle.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 4  | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn minimum_total(triangle: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `rob` is never used
[INFO] [stdout]  --> src/solution/dynamic_programming/rob_house.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     /// https://leetcode.com/problems/house-robber/
[INFO] [stdout] 5 |     pub fn rob(nums: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_profit` is never used
[INFO] [stdout]  --> src/solution/dynamic_programming/max_profit.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     /// https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
[INFO] [stdout] 5 |     pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `climb_stairs`, `climb_stairs_v2`, and `climb_stairs_recurse` are never used
[INFO] [stdout]   --> src/solution/dynamic_programming/climb_stairs.rs:5:12
[INFO] [stdout]    |
[INFO] [stdout] 3  | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 4  |     /// https://leetcode.com/problems/climbing-stairs/
[INFO] [stdout] 5  |     pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn climb_stairs_v2(n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn climb_stairs_recurse(n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `count_bits` is never used
[INFO] [stdout]  --> src/solution/dynamic_programming/counting_bits.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     /// https://leetcode.com/problems/counting-bits/
[INFO] [stdout] 6 |     pub fn count_bits(n: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `can_jump` is never used
[INFO] [stdout]  --> src/solution/dynamic_programming/jump_game.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 5 |     /// https://leetcode.com/problems/jump-game/
[INFO] [stdout] 6 |     pub fn can_jump(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `jump` and `jump_v2` are never used
[INFO] [stdout]   --> src/solution/dynamic_programming/jump_game_ii.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 5  | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 6  |     // https://leetcode.com/problems/jump-game-ii/
[INFO] [stdout] 7  |     pub fn jump(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn jump_v2(nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `unique_paths` is never used
[INFO] [stdout]  --> src/solution/dynamic_programming/unique_paths.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     /// https://leetcode.com/problems/unique-paths/
[INFO] [stdout] 5 |     pub fn unique_paths(m: i32, n: i32) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `unique_paths_with_obstacles` is never used
[INFO] [stdout]  --> src/solution/dynamic_programming/unique_paths_ii.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     // https://leetcode.com/problems/unique-paths-ii/
[INFO] [stdout] 5 |     pub fn unique_paths_with_obstacles(mut obstacle_grid: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `proc-macro-error-attr` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/e071e73523bfcdcab2878dbf652ac8ebb9b9eee4/bin/rustc --crate-name proc_macro_error_attr --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro-error-attr-1.0.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=0550b1fe35648df3 -C extra-filename=-e12709a93ecd50a6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b959fa476734bb1d.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-f0abe70e37f2b835.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/e071e73523bfcdcab2878dbf652ac8ebb9b9eee4/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.99/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=73eb6cf5617bfe5e -C extra-filename=-358082cbd1bd633a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b959fa476734bb1d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f0abe70e37f2b835.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-540dfcff5a9d53d6.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "70b5fcddd7a2ebf46812fc8312e61354c980f2209be603e7f4abd663cc97d242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b5fcddd7a2ebf46812fc8312e61354c980f2209be603e7f4abd663cc97d242", kill_on_drop: false }`
[INFO] [stdout] 70b5fcddd7a2ebf46812fc8312e61354c980f2209be603e7f4abd663cc97d242