[INFO] fetching crate rsleetcode 0.0.3...
[INFO] building rsleetcode-0.0.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate rsleetcode 0.0.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rsleetcode 0.0.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rsleetcode 0.0.3
[INFO] tweaked toml for crates.io crate rsleetcode 0.0.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsleetcode 0.0.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af1a8dfa647a8da32c4a28695fb0b7b3608341cad8b2bba5dac2930287cf8088
[INFO] running `Command { std: "docker" "start" "-a" "af1a8dfa647a8da32c4a28695fb0b7b3608341cad8b2bba5dac2930287cf8088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af1a8dfa647a8da32c4a28695fb0b7b3608341cad8b2bba5dac2930287cf8088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af1a8dfa647a8da32c4a28695fb0b7b3608341cad8b2bba5dac2930287cf8088", kill_on_drop: false }`
[INFO] [stdout] af1a8dfa647a8da32c4a28695fb0b7b3608341cad8b2bba5dac2930287cf8088
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69d8e3917301e39f4cff91996f6a367a5bd88b0bcbd1692519a17b7ea255e17a
[INFO] running `Command { std: "docker" "start" "-a" "69d8e3917301e39f4cff91996f6a367a5bd88b0bcbd1692519a17b7ea255e17a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsleetcode v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `num_rows`
[INFO] [stdout]    --> src/easy.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 404 | pub fn pascals_triangle(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row_index`
[INFO] [stdout]    --> src/easy.rs:408:28
[INFO] [stdout]     |
[INFO] [stdout] 408 | pub fn pascals_triangle_ii(row_index: i32) -> Vec<i32> {
[INFO] [stdout]     |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_row_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prices`
[INFO] [stdout]    --> src/easy.rs:412:40
[INFO] [stdout]     |
[INFO] [stdout] 412 | pub fn best_time_to_buy_and_sell_stock(prices: Vec<i32>) -> i32 {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:416:25
[INFO] [stdout]     |
[INFO] [stdout] 416 | pub fn valid_palindrome(s: String) -> bool {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:420:22
[INFO] [stdout]     |
[INFO] [stdout] 420 | pub fn single_number(nums: Vec<i32>) -> i32 {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:426:39
[INFO] [stdout]     |
[INFO] [stdout] 426 | pub fn binary_tree_preorder_traversal(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<i32> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:430:40
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub fn binary_tree_postorder_traversal(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<i32> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_number`
[INFO] [stdout]    --> src/easy.rs:440:33
[INFO] [stdout]     |
[INFO] [stdout] 440 | pub fn excel_sheet_column_title(column_number: i32) -> String {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:444:25
[INFO] [stdout]     |
[INFO] [stdout] 444 | pub fn majority_element(nums: Vec<i32>) -> i32 {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_title`
[INFO] [stdout]    --> src/easy.rs:450:34
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn excel_sheet_column_number(column_title: String) -> i32 {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/easy.rs:454:21
[INFO] [stdout]     |
[INFO] [stdout] 454 | pub fn reverse_bits(x: u32) -> u32 {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:458:25
[INFO] [stdout]     |
[INFO] [stdout] 458 | pub fn number_of_1_bits(n: i32) -> i32 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:462:21
[INFO] [stdout]     |
[INFO] [stdout] 462 | pub fn happy_number(n: i32) -> bool {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:466:36
[INFO] [stdout]     |
[INFO] [stdout] 466 | pub fn remove_linked_list_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/easy.rs:466:65
[INFO] [stdout]     |
[INFO] [stdout] 466 | pub fn remove_linked_list_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:470:27
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub fn isomorphic_strings(s: String, t: String) -> bool {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/easy.rs:470:38
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub fn isomorphic_strings(s: String, t: String) -> bool {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:474:28
[INFO] [stdout]     |
[INFO] [stdout] 474 | pub fn reverse_linked_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:478:27
[INFO] [stdout]     |
[INFO] [stdout] 478 | pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:482:30
[INFO] [stdout]     |
[INFO] [stdout] 482 | pub fn contains_duplicate_ii(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/easy.rs:482:46
[INFO] [stdout]     |
[INFO] [stdout] 482 | pub fn contains_duplicate_ii(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:486:34
[INFO] [stdout]     |
[INFO] [stdout] 486 | pub fn count_complete_tree_nodes(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:492:27
[INFO] [stdout]     |
[INFO] [stdout] 492 | pub fn invert_binary_tree(root: Option<Rc<RefCell<TreeNode>>>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:496:23
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub fn summary_ranges(nums: Vec<i32>) -> Vec<String> {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 | pub fn power_of_two(n: i32) -> bool {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:506:31
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub fn palindrome_linked_list(head: Option<Box<ListNode>>) -> bool {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:510:22
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub fn valid_anagram(s: String, t: String) -> bool {
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/easy.rs:510:33
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub fn valid_anagram(s: String, t: String) -> bool {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "69d8e3917301e39f4cff91996f6a367a5bd88b0bcbd1692519a17b7ea255e17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69d8e3917301e39f4cff91996f6a367a5bd88b0bcbd1692519a17b7ea255e17a", kill_on_drop: false }`
[INFO] [stdout] 69d8e3917301e39f4cff91996f6a367a5bd88b0bcbd1692519a17b7ea255e17a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4bbf495784d44f71c14578c63a574831d5a9d522ad30c025cc7222273be63f7
[INFO] running `Command { std: "docker" "start" "-a" "a4bbf495784d44f71c14578c63a574831d5a9d522ad30c025cc7222273be63f7", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `num_rows`
[INFO] [stdout]    --> src/easy.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 404 | pub fn pascals_triangle(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row_index`
[INFO] [stdout]    --> src/easy.rs:408:28
[INFO] [stdout]     |
[INFO] [stdout] 408 | pub fn pascals_triangle_ii(row_index: i32) -> Vec<i32> {
[INFO] [stdout]     |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_row_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prices`
[INFO] [stdout]    --> src/easy.rs:412:40
[INFO] [stdout]     |
[INFO] [stdout] 412 | pub fn best_time_to_buy_and_sell_stock(prices: Vec<i32>) -> i32 {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:416:25
[INFO] [stdout]     |
[INFO] [stdout] 416 | pub fn valid_palindrome(s: String) -> bool {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:420:22
[INFO] [stdout]     |
[INFO] [stdout] 420 | pub fn single_number(nums: Vec<i32>) -> i32 {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:426:39
[INFO] [stdout]     |
[INFO] [stdout] 426 | pub fn binary_tree_preorder_traversal(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<i32> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:430:40
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub fn binary_tree_postorder_traversal(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<i32> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_number`
[INFO] [stdout]    --> src/easy.rs:440:33
[INFO] [stdout]     |
[INFO] [stdout] 440 | pub fn excel_sheet_column_title(column_number: i32) -> String {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:444:25
[INFO] [stdout]     |
[INFO] [stdout] 444 | pub fn majority_element(nums: Vec<i32>) -> i32 {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_title`
[INFO] [stdout]    --> src/easy.rs:450:34
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn excel_sheet_column_number(column_title: String) -> i32 {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/easy.rs:454:21
[INFO] [stdout]     |
[INFO] [stdout] 454 | pub fn reverse_bits(x: u32) -> u32 {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:458:25
[INFO] [stdout]     |
[INFO] [stdout] 458 | pub fn number_of_1_bits(n: i32) -> i32 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:462:21
[INFO] [stdout]     |
[INFO] [stdout] 462 | pub fn happy_number(n: i32) -> bool {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:466:36
[INFO] [stdout]     |
[INFO] [stdout] 466 | pub fn remove_linked_list_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/easy.rs:466:65
[INFO] [stdout]     |
[INFO] [stdout] 466 | pub fn remove_linked_list_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:470:27
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub fn isomorphic_strings(s: String, t: String) -> bool {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/easy.rs:470:38
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub fn isomorphic_strings(s: String, t: String) -> bool {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:474:28
[INFO] [stdout]     |
[INFO] [stdout] 474 | pub fn reverse_linked_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:478:27
[INFO] [stdout]     |
[INFO] [stdout] 478 | pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:482:30
[INFO] [stdout]     |
[INFO] [stdout] 482 | pub fn contains_duplicate_ii(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/easy.rs:482:46
[INFO] [stdout]     |
[INFO] [stdout] 482 | pub fn contains_duplicate_ii(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:486:34
[INFO] [stdout]     |
[INFO] [stdout] 486 | pub fn count_complete_tree_nodes(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:492:27
[INFO] [stdout]     |
[INFO] [stdout] 492 | pub fn invert_binary_tree(root: Option<Rc<RefCell<TreeNode>>>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:496:23
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub fn summary_ranges(nums: Vec<i32>) -> Vec<String> {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 | pub fn power_of_two(n: i32) -> bool {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:506:31
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub fn palindrome_linked_list(head: Option<Box<ListNode>>) -> bool {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:510:22
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub fn valid_anagram(s: String, t: String) -> bool {
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rsleetcode v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/easy.rs:510:33
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub fn valid_anagram(s: String, t: String) -> bool {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_rows`
[INFO] [stdout]    --> src/easy.rs:404:25
[INFO] [stdout]     |
[INFO] [stdout] 404 | pub fn pascals_triangle(num_rows: i32) -> Vec<Vec<i32>> {
[INFO] [stdout]     |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row_index`
[INFO] [stdout]    --> src/easy.rs:408:28
[INFO] [stdout]     |
[INFO] [stdout] 408 | pub fn pascals_triangle_ii(row_index: i32) -> Vec<i32> {
[INFO] [stdout]     |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_row_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prices`
[INFO] [stdout]    --> src/easy.rs:412:40
[INFO] [stdout]     |
[INFO] [stdout] 412 | pub fn best_time_to_buy_and_sell_stock(prices: Vec<i32>) -> i32 {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prices`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:416:25
[INFO] [stdout]     |
[INFO] [stdout] 416 | pub fn valid_palindrome(s: String) -> bool {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:420:22
[INFO] [stdout]     |
[INFO] [stdout] 420 | pub fn single_number(nums: Vec<i32>) -> i32 {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:426:39
[INFO] [stdout]     |
[INFO] [stdout] 426 | pub fn binary_tree_preorder_traversal(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<i32> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:430:40
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub fn binary_tree_postorder_traversal(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<i32> {
[INFO] [stdout]     |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_number`
[INFO] [stdout]    --> src/easy.rs:440:33
[INFO] [stdout]     |
[INFO] [stdout] 440 | pub fn excel_sheet_column_title(column_number: i32) -> String {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:444:25
[INFO] [stdout]     |
[INFO] [stdout] 444 | pub fn majority_element(nums: Vec<i32>) -> i32 {
[INFO] [stdout]     |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `column_title`
[INFO] [stdout]    --> src/easy.rs:450:34
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn excel_sheet_column_number(column_title: String) -> i32 {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_column_title`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/easy.rs:454:21
[INFO] [stdout]     |
[INFO] [stdout] 454 | pub fn reverse_bits(x: u32) -> u32 {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:458:25
[INFO] [stdout]     |
[INFO] [stdout] 458 | pub fn number_of_1_bits(n: i32) -> i32 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:462:21
[INFO] [stdout]     |
[INFO] [stdout] 462 | pub fn happy_number(n: i32) -> bool {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:466:36
[INFO] [stdout]     |
[INFO] [stdout] 466 | pub fn remove_linked_list_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/easy.rs:466:65
[INFO] [stdout]     |
[INFO] [stdout] 466 | pub fn remove_linked_list_elements(head: Option<Box<ListNode>>, val: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:470:27
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub fn isomorphic_strings(s: String, t: String) -> bool {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/easy.rs:470:38
[INFO] [stdout]     |
[INFO] [stdout] 470 | pub fn isomorphic_strings(s: String, t: String) -> bool {
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:474:28
[INFO] [stdout]     |
[INFO] [stdout] 474 | pub fn reverse_linked_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:478:27
[INFO] [stdout]     |
[INFO] [stdout] 478 | pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:482:30
[INFO] [stdout]     |
[INFO] [stdout] 482 | pub fn contains_duplicate_ii(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/easy.rs:482:46
[INFO] [stdout]     |
[INFO] [stdout] 482 | pub fn contains_duplicate_ii(nums: Vec<i32>, k: i32) -> bool {
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:486:34
[INFO] [stdout]     |
[INFO] [stdout] 486 | pub fn count_complete_tree_nodes(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/easy.rs:492:27
[INFO] [stdout]     |
[INFO] [stdout] 492 | pub fn invert_binary_tree(root: Option<Rc<RefCell<TreeNode>>>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]     |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]    --> src/easy.rs:496:23
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub fn summary_ranges(nums: Vec<i32>) -> Vec<String> {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/easy.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 | pub fn power_of_two(n: i32) -> bool {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]    --> src/easy.rs:506:31
[INFO] [stdout]     |
[INFO] [stdout] 506 | pub fn palindrome_linked_list(head: Option<Box<ListNode>>) -> bool {
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/easy.rs:510:22
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub fn valid_anagram(s: String, t: String) -> bool {
[INFO] [stdout]     |                      ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/easy.rs:510:33
[INFO] [stdout]     |
[INFO] [stdout] 510 | pub fn valid_anagram(s: String, t: String) -> bool {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "a4bbf495784d44f71c14578c63a574831d5a9d522ad30c025cc7222273be63f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4bbf495784d44f71c14578c63a574831d5a9d522ad30c025cc7222273be63f7", kill_on_drop: false }`
[INFO] [stdout] a4bbf495784d44f71c14578c63a574831d5a9d522ad30c025cc7222273be63f7
