[INFO] updating cached repository https://github.com/jit-y/leetcode-rs [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] [stderr] From https://github.com/jit-y/leetcode-rs [INFO] [stderr] 7145528..405b41f master -> master [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 405b41fb866d0bb7f6c8da1d28d3cfc7b8175e29 [INFO] checking jit-y/leetcode-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fleetcode-rs" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jit-y/leetcode-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jit-y/leetcode-rs [INFO] finished tweaking git repo https://github.com/jit-y/leetcode-rs [INFO] tweaked toml for git repo https://github.com/jit-y/leetcode-rs written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/jit-y/leetcode-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] a0449bc0e9e58f04fe8dead5058ae9471a6ffba85113309776d168777a2e762b [INFO] running `"docker" "start" "-a" "a0449bc0e9e58f04fe8dead5058ae9471a6ffba85113309776d168777a2e762b"` [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `tmp` [INFO] [stderr] --> examples/sum_of_even_numbers_after_queries.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | let tmp = a[query[1] as usize]; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_tmp` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sum_even_after_queries_2` [INFO] [stderr] --> examples/sum_of_even_numbers_after_queries.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn sum_even_after_queries_2(a: Vec, queries: Vec>) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `min_cost_climbing_stairs_2` [INFO] [stderr] --> examples/min_cost_climbling_stairs.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn min_cost_climbing_stairs_2(cost: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `remove_element_2` [INFO] [stderr] --> examples/remove_element.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | pub fn remove_element_2(nums: &mut Vec, val: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `remove_outer_parentheses_2` [INFO] [stderr] --> examples/remove_outermost_parentheses.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn remove_outer_parentheses_2(s: String) -> String { [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] --> examples/middle_of_the_linked_list.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: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> examples/remove_duplicates_from_sorted_list.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `new_node` [INFO] [stderr] --> examples/inorder_traversal.rs:63:25 [INFO] [stderr] | [INFO] [stderr] 63 | let mut new_node = TreeNode::new(inner.val); [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/inorder_traversal.rs:63:25 [INFO] [stderr] | [INFO] [stderr] 63 | let mut new_node = TreeNode::new(inner.val); [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] --> examples/inorder_traversal.rs:23:8 [INFO] [stderr] | [INFO] [stderr] 23 | struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `inorder_traversal` [INFO] [stderr] --> examples/inorder_traversal.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn inorder_traversal(root: Option>>) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> examples/reverse_integer.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] --> examples/reverse_integer.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn reverse(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/postorder_traversal.rs:52:17 [INFO] [stderr] | [INFO] [stderr] 52 | let mut new_node = Rc::new(RefCell::new(TreeNode::new(inner.val))); [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] --> examples/postorder_traversal.rs:23:8 [INFO] [stderr] | [INFO] [stderr] 23 | struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `postorder_traversal` [INFO] [stderr] --> examples/postorder_traversal.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn postorder_traversal(root: Option>>) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> examples/remove_linked_list_elements.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | fn new(val: i32) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `two_sum_dp` [INFO] [stderr] --> examples/two_sum_2.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | pub fn two_sum_dp(numbers: Vec, target: i32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `head` [INFO] [stderr] --> examples/reverse_linked_list.rs:31:35 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn reverse_list_recursive(head: Option>) -> Option> { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_head` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse_list_recursive` [INFO] [stderr] --> examples/reverse_linked_list.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn reverse_list_recursive(head: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> examples/level_order_traversal.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 19 | struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `level_order` [INFO] [stderr] --> examples/level_order_traversal.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn level_order(root: Option>>) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_palindrome_3` [INFO] [stderr] --> examples/palindrome_linked_list.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn is_palindrome_3(head: Option>) -> bool { [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] --> examples/roman_to_integer.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: `roman_to_int` [INFO] [stderr] --> examples/roman_to_integer.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn roman_to_int(s: String) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> examples/palindrome_number.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: `is_palindrome` [INFO] [stderr] --> examples/palindrome_number.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn is_palindrome(x: i32) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> examples/preorder_traversal.rs:23:8 [INFO] [stderr] | [INFO] [stderr] 23 | struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `preorder_traversal` [INFO] [stderr] --> examples/preorder_traversal.rs:26:5 [INFO] [stderr] | [INFO] [stderr] 26 | pub fn preorder_traversal(root: Option>>) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> examples/valid_parentheses.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: `is_valid` [INFO] [stderr] --> examples/valid_parentheses.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn is_valid(s: String) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add_binary_b` [INFO] [stderr] --> examples/add_binary.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | pub fn add_binary_b(a: String, b: String) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `judge_square_sum_bad2` [INFO] [stderr] --> examples/sum_of_square_numbers.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn judge_square_sum_bad2(c: i32) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `judge_square_sum_bad` [INFO] [stderr] --> examples/sum_of_square_numbers.rs:40:5 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn judge_square_sum_bad(c: i32) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bs` [INFO] [stderr] --> examples/sum_of_square_numbers.rs:41:12 [INFO] [stderr] | [INFO] [stderr] 41 | fn bs(left: i64, right: i64, target: i64) -> bool { [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `str_str2` [INFO] [stderr] --> examples/implement_strstr.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn str_str2(haystack: String, needle: String) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse_string_2` [INFO] [stderr] --> examples/reverse_string.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn reverse_string_2(s: &mut Vec) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.18s [INFO] running `"docker" "inspect" "a0449bc0e9e58f04fe8dead5058ae9471a6ffba85113309776d168777a2e762b"` [INFO] running `"docker" "rm" "-f" "a0449bc0e9e58f04fe8dead5058ae9471a6ffba85113309776d168777a2e762b"` [INFO] [stdout] a0449bc0e9e58f04fe8dead5058ae9471a6ffba85113309776d168777a2e762b