[INFO] updating cached repository https://github.com/magurotuna/leetcode-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 25fe43e23160883aa89080d8558347f027e065a4 [INFO] checking magurotuna/leetcode-rust against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagurotuna%2Fleetcode-rust" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/magurotuna/leetcode-rust on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4 [INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/magurotuna/leetcode-rust [INFO] finished tweaking git repo https://github.com/magurotuna/leetcode-rust [INFO] tweaked toml for git repo https://github.com/magurotuna/leetcode-rust written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/magurotuna/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 88492286ca3f9aebbff2431e902ca47272deb16ddfff49d878dfac7cc84c3652 [INFO] running `"docker" "start" "-a" "88492286ca3f9aebbff2431e902ca47272deb16ddfff49d878dfac7cc84c3652"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Checking leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/929.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `num_unique_emails` [INFO] [stderr] --> src/bin/929.rs:40:5 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn num_unique_emails(emails: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `naive_add_binary` [INFO] [stderr] --> src/bin/67.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn naive_add_binary(a: String, b: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/bin/12.rs:30:22 [INFO] [stderr] | [INFO] [stderr] 30 | x @ 1...3 => match 3 - i { [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/bin/12.rs:37:22 [INFO] [stderr] | [INFO] [stderr] 37 | x @ 5...8 => match 3 - i { [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/1342.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `number_of_steps` [INFO] [stderr] --> src/bin/1342.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn number_of_steps(num: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/bin/146.rs:51:23 [INFO] [stderr] | [INFO] [stderr] 51 | fn put(&mut self, key: i32, value: i32) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/bin/146.rs:51:33 [INFO] [stderr] | [INFO] [stderr] 51 | fn put(&mut self, key: i32, value: i32) { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `LRUCache` [INFO] [stderr] --> src/bin/146.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | struct LRUCache { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/206.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/146.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | fn new(capacity: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get` [INFO] [stderr] --> src/bin/146.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | fn get(&mut self, key: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `put` [INFO] [stderr] --> src/bin/146.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 51 | fn put(&mut self, key: i32, value: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/206.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse_list` [INFO] [stderr] --> src/bin/206.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | pub fn reverse_list(head: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_linked_list` [INFO] [stderr] --> src/bin/206.rs:33:4 [INFO] [stderr] | [INFO] [stderr] 33 | fn make_linked_list(values: &[i32]) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `MOD` should have a snake case name [INFO] [stderr] --> src/bin/1397.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let MOD = 1_000_000_007; [INFO] [stderr] | ^^^ help: convert the identifier to snake case: `mod` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/23.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/973.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `k_closest` [INFO] [stderr] --> src/bin/973.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn k_closest(points: Vec>, k: i32) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `bfs_coin_change` [INFO] [stderr] --> src/bin/322.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | pub fn bfs_coin_change(coins: Vec, amount: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/334.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `increasing_triplet` [INFO] [stderr] --> src/bin/334.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn increasing_triplet(nums: Vec) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/227.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/200.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `calculate` [INFO] [stderr] --> src/bin/227.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn calculate(s: String) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calc` [INFO] [stderr] --> src/bin/227.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn calc(s: &[char], index: &mut usize) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `read_and_calc_high_precedence` [INFO] [stderr] --> src/bin/227.rs:40:4 [INFO] [stderr] | [INFO] [stderr] 40 | fn read_and_calc_high_precedence(s: &[char], index: &mut usize) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `read_val` [INFO] [stderr] --> src/bin/227.rs:59:4 [INFO] [stderr] | [INFO] [stderr] 59 | fn read_val(s: &[char], index: &mut usize) -> i32 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `num_islands` [INFO] [stderr] --> src/bin/200.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn num_islands(grid: Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `mark_island` [INFO] [stderr] --> src/bin/200.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | fn mark_island(marker: &mut Vec>, h: usize, w: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/617.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let mut n1 = n1.unwrap(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/617.rs:26:14 [INFO] [stderr] | [INFO] [stderr] 26 | Some(mut n2) => { [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `acc_sum` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/bin/1140.rs:13:17 [INFO] [stderr] | [INFO] [stderr] 12 | let last = acc_sum.last().unwrap(); [INFO] [stderr] | ------- immutable borrow occurs here [INFO] [stderr] 13 | acc_sum.push(piles[i] + last); [INFO] [stderr] | ^^^^^^^ ---- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/1374.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `generate_the_string` [INFO] [stderr] --> src/bin/1374.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn generate_the_string(n: i32) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `MOD` should have a snake case name [INFO] [stderr] --> src/bin/1383.rs:8:13 [INFO] [stderr] | [INFO] [stderr] 8 | let MOD = 1_000_000_007; [INFO] [stderr] | ^^^ help: convert the identifier to snake case: `mod` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/779.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | x => { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/986.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `interval_intersection` [INFO] [stderr] --> src/bin/986.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn interval_intersection(a: Vec>, b: Vec>) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/121.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `max_profit` [INFO] [stderr] --> src/bin/121.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/79.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `exist` [INFO] [stderr] --> src/bin/79.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn exist(board: Vec>, word: String) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dfs` [INFO] [stderr] --> src/bin/79.rs:11:4 [INFO] [stderr] | [INFO] [stderr] 11 | fn dfs(board: &Vec>, s: &[char], h: usize, w: usize) -> bool { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_exist` [INFO] [stderr] --> src/bin/79.rs:59:8 [INFO] [stderr] | [INFO] [stderr] 59 | fn test_exist() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/103.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `zigzag_level_order` [INFO] [stderr] --> src/bin/103.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn zigzag_level_order(root: Option>>) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_node` [INFO] [stderr] --> src/bin/103.rs:78:4 [INFO] [stderr] | [INFO] [stderr] 78 | fn make_node(val: i32) -> Option>> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_node_with` [INFO] [stderr] --> src/bin/103.rs:82:4 [INFO] [stderr] | [INFO] [stderr] 82 | fn make_node_with( [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/7.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse` [INFO] [stderr] --> src/bin/7.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn reverse(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable statement [INFO] [stderr] --> src/bin/5.rs:110:13 [INFO] [stderr] | [INFO] [stderr] 109 | loop {} [INFO] [stderr] | ------- any code following this expression is unreachable [INFO] [stderr] 110 | len = max(len, right - left + 1); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/bin/5.rs:105:17 [INFO] [stderr] | [INFO] [stderr] 105 | let mut len = 0; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `left` [INFO] [stderr] --> src/bin/5.rs:107:21 [INFO] [stderr] | [INFO] [stderr] 107 | let mut left = i; [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_left` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `right` [INFO] [stderr] --> src/bin/5.rs:108:21 [INFO] [stderr] | [INFO] [stderr] 108 | let mut right = i; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_right` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `len` is never read [INFO] [stderr] --> src/bin/5.rs:110:13 [INFO] [stderr] | [INFO] [stderr] 110 | len = max(len, right - left + 1); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/323.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `count_components` [INFO] [stderr] --> src/bin/323.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn count_components(n: i32, edges: Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dfs` [INFO] [stderr] --> src/bin/323.rs:28:4 [INFO] [stderr] | [INFO] [stderr] 28 | fn dfs(visited: &mut std::collections::HashSet, links: &Vec>, start: usize) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/779.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | x => { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/779.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `kth_grammar` [INFO] [stderr] --> src/bin/779.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn kth_grammar(n: i32, k: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve` [INFO] [stderr] --> src/bin/779.rs:15:4 [INFO] [stderr] | [INFO] [stderr] 15 | fn solve(row: i32, col: i32) -> i32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/5.rs:105:13 [INFO] [stderr] | [INFO] [stderr] 105 | let mut len = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/5.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | let mut left = i; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/5.rs:108:17 [INFO] [stderr] | [INFO] [stderr] 108 | let mut right = i; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `tmp_longest_palindrome` [INFO] [stderr] --> src/bin/5.rs:87:5 [INFO] [stderr] | [INFO] [stderr] 87 | pub fn tmp_longest_palindrome(s: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `iter` [INFO] [stderr] --> src/bin/394.rs:13:13 [INFO] [stderr] | [INFO] [stderr] 13 | let mut iter = substr.into_iter(); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_iter` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `end_index` is never read [INFO] [stderr] --> src/bin/394.rs:32:21 [INFO] [stderr] | [INFO] [stderr] 32 | let mut end_index = index; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_open` [INFO] [stderr] --> src/bin/20.rs:42:4 [INFO] [stderr] | [INFO] [stderr] 42 | fn is_open(c: char) -> bool { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/394.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let mut iter = substr.into_iter(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/394.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `decode_string` [INFO] [stderr] --> src/bin/394.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn decode_string(s: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve` [INFO] [stderr] --> src/bin/394.rs:12:4 [INFO] [stderr] | [INFO] [stderr] 12 | fn solve(ans: &mut String, substr: &[char]) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/209.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `min_sub_array_len` [INFO] [stderr] --> src/bin/209.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn min_sub_array_len(s: i32, nums: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `1406` [INFO] [stderr] --> src/bin/1406.rs:1:9 [INFO] [stderr] | [INFO] [stderr] 1 | // TODO [INFO] [stderr] | ^ consider adding a `main` function to `src/bin/1406.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] error: could not compile `leetcode-rust`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/bin/12.rs:30:22 [INFO] [stderr] | [INFO] [stderr] 30 | x @ 1...3 => match 3 - i { [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/bin/12.rs:37:22 [INFO] [stderr] | [INFO] [stderr] 37 | x @ 5...8 => match 3 - i { [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/206.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/387.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `first_uniq_char` [INFO] [stderr] --> src/bin/387.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn first_uniq_char(s: String) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `width` [INFO] [stderr] --> src/bin/1380.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let width = matrix[0].len(); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_width` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/445.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/445.rs:14:8 [INFO] [stderr] | [INFO] [stderr] 14 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_two_numbers` [INFO] [stderr] --> src/bin/445.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | / pub fn add_two_numbers( [INFO] [stderr] 18 | | l1: Option>, [INFO] [stderr] 19 | | l2: Option>, [INFO] [stderr] 20 | | ) -> Option> { [INFO] [stderr] ... | [INFO] [stderr] 44 | | make_linked_list(0, &digits) [INFO] [stderr] 45 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_linked_list` [INFO] [stderr] --> src/bin/445.rs:48:4 [INFO] [stderr] | [INFO] [stderr] 48 | fn make_linked_list(index: usize, digits: &[i32]) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `traverse` [INFO] [stderr] --> src/bin/445.rs:59:4 [INFO] [stderr] | [INFO] [stderr] 59 | fn traverse(node: Option<&Box>, val: &mut Vec) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/bin/253.rs:29:14 [INFO] [stderr] | [INFO] [stderr] 29 | for (key, (start, end)) in m.into_iter() { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `key` [INFO] [stderr] --> src/bin/146.rs:51:23 [INFO] [stderr] | [INFO] [stderr] 51 | fn put(&mut self, key: i32, value: i32) { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_key` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/bin/146.rs:51:33 [INFO] [stderr] | [INFO] [stderr] 51 | fn put(&mut self, key: i32, value: i32) { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `LRUCache` [INFO] [stderr] --> src/bin/146.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | struct LRUCache { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/146.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | fn new(capacity: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get` [INFO] [stderr] --> src/bin/146.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | fn get(&mut self, key: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `put` [INFO] [stderr] --> src/bin/146.rs:51:5 [INFO] [stderr] | [INFO] [stderr] 51 | fn put(&mut self, key: i32, value: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/bin/111.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `min_depth` [INFO] [stderr] --> src/bin/111.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn min_depth(root: Option>>) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_node` [INFO] [stderr] --> src/bin/111.rs:57:4 [INFO] [stderr] | [INFO] [stderr] 57 | fn make_node(val: i32) -> Option>> { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_node_with` [INFO] [stderr] --> src/bin/111.rs:61:4 [INFO] [stderr] | [INFO] [stderr] 61 | fn make_node_with( [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "88492286ca3f9aebbff2431e902ca47272deb16ddfff49d878dfac7cc84c3652"` [INFO] running `"docker" "rm" "-f" "88492286ca3f9aebbff2431e902ca47272deb16ddfff49d878dfac7cc84c3652"` [INFO] [stdout] 88492286ca3f9aebbff2431e902ca47272deb16ddfff49d878dfac7cc84c3652