[INFO] cloning repository https://github.com/abhyuditjain/leetcode_30_day_challenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abhyuditjain/leetcode_30_day_challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhyuditjain%2Fleetcode_30_day_challenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhyuditjain%2Fleetcode_30_day_challenge'... 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"/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 79cf097b949d2594ffe757ea2c4fdebda7e3750836a34e3f388ce5422d930a6c [INFO] running `Command { std: "docker" "start" "-a" "79cf097b949d2594ffe757ea2c4fdebda7e3750836a34e3f388ce5422d930a6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79cf097b949d2594ffe757ea2c4fdebda7e3750836a34e3f388ce5422d930a6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79cf097b949d2594ffe757ea2c4fdebda7e3750836a34e3f388ce5422d930a6c", kill_on_drop: false }` [INFO] [stdout] 79cf097b949d2594ffe757ea2c4fdebda7e3750836a34e3f388ce5422d930a6c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bdde9cec0d598f389716deb637bafe528b04fac7f907eba09c7d0fa8f9a02c5d [INFO] running `Command { std: "docker" "start" "-a" "bdde9cec0d598f389716deb637bafe528b04fac7f907eba09c7d0fa8f9a02c5d", kill_on_drop: false }` [INFO] [stderr] Compiling leetcode_30_day_challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `assert_equivalent` is never used [INFO] [stdout] --> src/utils/test_tools.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn assert_equivalent(left: &[T], right: &[T]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `assert_nested_equivalent` is never used [INFO] [stdout] --> src/utils/test_tools.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn assert_nested_equivalent(left: &[Vec], right: &[Vec]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `map_to_string` is never used [INFO] [stdout] --> src/utils/test_tools.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn map_to_string(strs: &[&str]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `map_nested_to_string` is never used [INFO] [stdout] --> src/utils/test_tools.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn map_nested_to_string(strs: &[Vec<&str>]) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `assert_feq` is never used [INFO] [stdout] --> src/utils/test_tools.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn assert_feq(p: f64, q: f64) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/utils/linked_list.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_double_iter` is never used [INFO] [stdout] --> src/utils/linked_list.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 18 | #[inline] [INFO] [stdout] 19 | pub fn from_double_iter(iter: T) -> Option> [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/single_number.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `single_number` is never used [INFO] [stdout] --> src/single_number.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 20 | pub fn single_number(nums: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/happy_number.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `is_happy` and `square_sum` are never used [INFO] [stdout] --> src/happy_number.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 23 | pub fn is_happy(n: i32) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | fn square_sum(mut n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/maximum_subarray.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `max_sub_array` is never used [INFO] [stdout] --> src/maximum_subarray.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 19 | pub fn max_sub_array(nums: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/move_zeroes.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `move_zeroes` is never used [INFO] [stdout] --> src/move_zeroes.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 19 | pub fn move_zeroes(nums: &mut Vec) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/best_time_to_buy_and_sell_stock_ii.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `max_profit` is never used [INFO] [stdout] --> src/best_time_to_buy_and_sell_stock_ii.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 39 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/group_anagrams.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `group_anagrams` and `get_sorted` are never used [INFO] [stdout] --> src/group_anagrams.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn group_anagrams(strs: Vec) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn get_sorted(s: &str) -> String { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/counting_elements.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `count_elements` is never used [INFO] [stdout] --> src/counting_elements.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 39 | pub fn count_elements(arr: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/middle_of_the_linked_list.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `middle_node` is never used [INFO] [stdout] --> src/middle_of_the_linked_list.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 30 | pub fn middle_node(head: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/backspace_string_compare.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `backspace_compare` and `get_next` are never used [INFO] [stdout] --> src/backspace_string_compare.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 37 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 38 | pub fn backspace_compare(s: String, t: String) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn get_next(iter: &mut impl Iterator) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MinStack` is never constructed [INFO] [stdout] --> src/min_stack.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct MinStack { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `top`, and `get_min` are never used [INFO] [stdout] --> src/min_stack.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 28 | impl MinStack { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 29 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn push(&mut self, x: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | fn pop(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn top(&self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | fn get_min(&self) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/diameter_of_binary_tree.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `diameter_of_binary_tree` and `max_depth_diameter` are never used [INFO] [stdout] --> src/diameter_of_binary_tree.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn diameter_of_binary_tree(root: Option>>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | fn max_depth_diameter(root: &Option>>) -> (i32, i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/last_stone_weight.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `last_stone_weight` is never used [INFO] [stdout] --> src/last_stone_weight.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 30 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 31 | pub fn last_stone_weight(stones: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/leftmost_column_with_at_least_a_one.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 66 | impl BinaryMatrix { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 67 | fn new(v: Vec>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/lru_cache.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `evict` are never used [INFO] [stdout] --> src/lru_cache.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl Node { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 39 | fn new(key: i32, value: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | fn evict(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LinkedListWithMap` is never constructed [INFO] [stdout] --> src/lru_cache.rs:65:8 [INFO] [stdout] | [INFO] [stdout] 65 | struct LinkedListWithMap { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/lru_cache.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 71 | impl LinkedListWithMap { [INFO] [stdout] | ---------------------- associated items in this implementation [INFO] [stdout] 72 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | fn add_head(&mut self, key: i32, value: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn remove_tail(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | fn remove(&mut self, key: i32) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 132 | fn push(&mut self, key: i32, value: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 137 | fn get(&self, key: i32) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LRUCache` is never constructed [INFO] [stdout] --> src/lru_cache.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 146 | struct LRUCache { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `get`, and `put` are never used [INFO] [stdout] --> src/lru_cache.rs:152:8 [INFO] [stdout] | [INFO] [stdout] 151 | impl LRUCache { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 152 | fn new(capacity: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 159 | fn get(&mut self, key: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 169 | fn put(&mut self, key: i32, value: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `queue` and `map` are never read [INFO] [stdout] --> src/first_unique_number.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 64 | pub struct FirstUnique { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 65 | queue: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 66 | map: HashMap, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `show_first_unique`, and `add` are never used [INFO] [stdout] --> src/first_unique_number.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 69 | impl FirstUnique { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 70 | fn new(nums: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | fn show_first_unique(&mut self) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | fn add(&mut self, value: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "bdde9cec0d598f389716deb637bafe528b04fac7f907eba09c7d0fa8f9a02c5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bdde9cec0d598f389716deb637bafe528b04fac7f907eba09c7d0fa8f9a02c5d", kill_on_drop: false }` [INFO] [stdout] bdde9cec0d598f389716deb637bafe528b04fac7f907eba09c7d0fa8f9a02c5d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b435321ecf03c1550e4e791c2b2b19ad1e3c278acebccdeb36356d3b48ad38fe [INFO] running `Command { std: "docker" "start" "-a" "b435321ecf03c1550e4e791c2b2b19ad1e3c278acebccdeb36356d3b48ad38fe", kill_on_drop: false }` [INFO] [stdout] warning: function `assert_equivalent` is never used [INFO] [stdout] --> src/utils/test_tools.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn assert_equivalent(left: &[T], right: &[T]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `assert_nested_equivalent` is never used [INFO] [stdout] --> src/utils/test_tools.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn assert_nested_equivalent(left: &[Vec], right: &[Vec]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `map_to_string` is never used [INFO] [stdout] --> src/utils/test_tools.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn map_to_string(strs: &[&str]) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `map_nested_to_string` is never used [INFO] [stdout] --> src/utils/test_tools.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn map_nested_to_string(strs: &[Vec<&str>]) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `assert_feq` is never used [INFO] [stdout] --> src/utils/test_tools.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn assert_feq(p: f64, q: f64) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/utils/linked_list.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 8 | #[inline] [INFO] [stdout] 9 | pub fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_double_iter` is never used [INFO] [stdout] --> src/utils/linked_list.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 18 | #[inline] [INFO] [stdout] 19 | pub fn from_double_iter(iter: T) -> Option> [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/single_number.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `single_number` is never used [INFO] [stdout] --> src/single_number.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 20 | pub fn single_number(nums: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/happy_number.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `is_happy` and `square_sum` are never used [INFO] [stdout] --> src/happy_number.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 23 | pub fn is_happy(n: i32) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | fn square_sum(mut n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/maximum_subarray.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `max_sub_array` is never used [INFO] [stdout] --> src/maximum_subarray.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 19 | pub fn max_sub_array(nums: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/move_zeroes.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 16 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `move_zeroes` is never used [INFO] [stdout] --> src/move_zeroes.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 19 | pub fn move_zeroes(nums: &mut Vec) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/best_time_to_buy_and_sell_stock_ii.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `max_profit` is never used [INFO] [stdout] --> src/best_time_to_buy_and_sell_stock_ii.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 39 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/group_anagrams.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `group_anagrams` and `get_sorted` are never used [INFO] [stdout] --> src/group_anagrams.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn group_anagrams(strs: Vec) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn get_sorted(s: &str) -> String { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/counting_elements.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `count_elements` is never used [INFO] [stdout] --> src/counting_elements.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 39 | pub fn count_elements(arr: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/middle_of_the_linked_list.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `middle_node` is never used [INFO] [stdout] --> src/middle_of_the_linked_list.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 29 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 30 | pub fn middle_node(head: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/backspace_string_compare.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `backspace_compare` and `get_next` are never used [INFO] [stdout] --> src/backspace_string_compare.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 37 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 38 | pub fn backspace_compare(s: String, t: String) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn get_next(iter: &mut impl Iterator) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MinStack` is never constructed [INFO] [stdout] --> src/min_stack.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct MinStack { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `top`, and `get_min` are never used [INFO] [stdout] --> src/min_stack.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 28 | impl MinStack { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 29 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn push(&mut self, x: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | fn pop(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn top(&self) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | fn get_min(&self) -> i32 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/diameter_of_binary_tree.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `diameter_of_binary_tree` and `max_depth_diameter` are never used [INFO] [stdout] --> src/diameter_of_binary_tree.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn diameter_of_binary_tree(root: Option>>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | fn max_depth_diameter(root: &Option>>) -> (i32, i32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/last_stone_weight.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `last_stone_weight` is never used [INFO] [stdout] --> src/last_stone_weight.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 30 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 31 | pub fn last_stone_weight(stones: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/leftmost_column_with_at_least_a_one.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 66 | impl BinaryMatrix { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 67 | fn new(v: Vec>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/lru_cache.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `evict` are never used [INFO] [stdout] --> src/lru_cache.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 38 | impl Node { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 39 | fn new(key: i32, value: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | fn evict(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LinkedListWithMap` is never constructed [INFO] [stdout] --> src/lru_cache.rs:65:8 [INFO] [stdout] | [INFO] [stdout] 65 | struct LinkedListWithMap { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/lru_cache.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 71 | impl LinkedListWithMap { [INFO] [stdout] | ---------------------- associated items in this implementation [INFO] [stdout] 72 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | fn add_head(&mut self, key: i32, value: i32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn remove_tail(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | fn remove(&mut self, key: i32) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 132 | fn push(&mut self, key: i32, value: i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 137 | fn get(&self, key: i32) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LRUCache` is never constructed [INFO] [stdout] --> src/lru_cache.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 146 | struct LRUCache { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `get`, and `put` are never used [INFO] [stdout] --> src/lru_cache.rs:152:8 [INFO] [stdout] | [INFO] [stdout] 151 | impl LRUCache { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 152 | fn new(capacity: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 159 | fn get(&mut self, key: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 169 | fn put(&mut self, key: i32, value: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `queue` and `map` are never read [INFO] [stdout] --> src/first_unique_number.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 64 | pub struct FirstUnique { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 65 | queue: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 66 | map: HashMap, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling leetcode_30_day_challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated items `new`, `show_first_unique`, and `add` are never used [INFO] [stdout] --> src/first_unique_number.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 69 | impl FirstUnique { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 70 | fn new(nums: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | fn show_first_unique(&mut self) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | fn add(&mut self, value: i32) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/maximum_level_sum_of_binary_tree.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | let mut root = Some(Rc::new(RefCell::new(TreeNode::new(1)))); [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: function `assert_equivalent` is never used [INFO] [stdout] --> src/utils/test_tools.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn assert_equivalent(left: &[T], right: &[T]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `map_nested_to_string` is never used [INFO] [stdout] --> src/utils/test_tools.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn map_nested_to_string(strs: &[Vec<&str>]) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `assert_feq` is never used [INFO] [stdout] --> src/utils/test_tools.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn assert_feq(p: f64, q: f64) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `from_double_iter` is never used [INFO] [stdout] --> src/utils/linked_list.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 18 | #[inline] [INFO] [stdout] 19 | pub fn from_double_iter(iter: T) -> Option> [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `Command { std: "docker" "inspect" "b435321ecf03c1550e4e791c2b2b19ad1e3c278acebccdeb36356d3b48ad38fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b435321ecf03c1550e4e791c2b2b19ad1e3c278acebccdeb36356d3b48ad38fe", kill_on_drop: false }` [INFO] [stdout] b435321ecf03c1550e4e791c2b2b19ad1e3c278acebccdeb36356d3b48ad38fe