[INFO] cloning repository https://github.com/xavierxcn/leetcode-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xavierxcn/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxavierxcn%2Fleetcode-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxavierxcn%2Fleetcode-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b52354bb4cd0fa63cd6c539b4e0cc3a9a9167a6
[INFO] testing xavierxcn/leetcode-rust against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxavierxcn%2Fleetcode-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xavierxcn/leetcode-rust on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xavierxcn/leetcode-rust
[INFO] finished tweaking git repo https://github.com/xavierxcn/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/xavierxcn/leetcode-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xavierxcn/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c3109b14747915e9cb2ec401b089aa8c1e495b2bda5d3b0c9f4a5167610b887
[INFO] running `Command { std: "docker" "start" "-a" "3c3109b14747915e9cb2ec401b089aa8c1e495b2bda5d3b0c9f4a5167610b887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c3109b14747915e9cb2ec401b089aa8c1e495b2bda5d3b0c9f4a5167610b887", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3109b14747915e9cb2ec401b089aa8c1e495b2bda5d3b0c9f4a5167610b887", kill_on_drop: false }`
[INFO] [stdout] 3c3109b14747915e9cb2ec401b089aa8c1e495b2bda5d3b0c9f4a5167610b887
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48a08a59fa729d88fbb82b1c4a23f170e7c749656826ac670fc4d365806a3be0
[INFO] running `Command { std: "docker" "start" "-a" "48a08a59fa729d88fbb82b1c4a23f170e7c749656826ac670fc4d365806a3be0", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "48a08a59fa729d88fbb82b1c4a23f170e7c749656826ac670fc4d365806a3be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a08a59fa729d88fbb82b1c4a23f170e7c749656826ac670fc4d365806a3be0", kill_on_drop: false }`
[INFO] [stdout] 48a08a59fa729d88fbb82b1c4a23f170e7c749656826ac670fc4d365806a3be0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 211b944987ca58ffcfbf27affa43ad3aa89c4d652c9af55180c72d41d02605e5
[INFO] running `Command { std: "docker" "start" "-a" "211b944987ca58ffcfbf27affa43ad3aa89c4d652c9af55180c72d41d02605e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `move_zeroes` is never used
[INFO] [stdout]  --> examples/move-zeroes.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn move_zeroes(nums: &mut Vec<i32>) {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> examples/remove-duplicates-from-sorted-array.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `remove_duplicates` is never used
[INFO] [stdout]   --> examples/remove-duplicates-from-sorted-array.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 10 |     pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> examples/plus-one.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |         while  i >= 0 {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `length_of_longest_substring` is never used
[INFO] [stdout]  --> examples/longest-substring-without-repeating-characters.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `maximum_prime_difference` is never used
[INFO] [stdout]  --> examples/maximum-prime-difference.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn maximum_prime_difference(nums: Vec<i32>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_prime_difference` is never used
[INFO] [stdout]   --> examples/maximum-prime-difference.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn is_prime_difference(num: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> examples/container-with-most-water.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `max_area` is never used
[INFO] [stdout]   --> examples/container-with-most-water.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::null`
[INFO] [stdout]  --> examples/reverse-linked-list.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ptr::null;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> examples/reverse-linked-list.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |   #[inline]
[INFO] [stdout] 16 |   fn new(val: i32) -> Self {
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> examples/reverse-linked-list.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `reverse_list` and `swap_pairs` are never used
[INFO] [stdout]   --> examples/reverse-linked-list.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 28 |     pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn swap_pairs(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "211b944987ca58ffcfbf27affa43ad3aa89c4d652c9af55180c72d41d02605e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211b944987ca58ffcfbf27affa43ad3aa89c4d652c9af55180c72d41d02605e5", kill_on_drop: false }`
[INFO] [stdout] 211b944987ca58ffcfbf27affa43ad3aa89c4d652c9af55180c72d41d02605e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6e2c9e603eddcf5efa5276e6b3327b6c22f7c66357608c2aa2ff64cb24aae822
[INFO] running `Command { std: "docker" "start" "-a" "6e2c9e603eddcf5efa5276e6b3327b6c22f7c66357608c2aa2ff64cb24aae822", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> examples/remove-duplicates-from-sorted-array.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Solution;
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `remove_duplicates` is never used
[INFO] [stderr]   --> examples/remove-duplicates-from-sorted-array.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 9  | impl Solution {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 10 |     pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `move_zeroes` is never used
[INFO] [stderr]  --> examples/move-zeroes.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn move_zeroes(nums: &mut Vec<i32>) {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `maximum_prime_difference` is never used
[INFO] [stderr]  --> examples/maximum-prime-difference.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn maximum_prime_difference(nums: Vec<i32>) -> i32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `is_prime_difference` is never used
[INFO] [stderr]   --> examples/maximum-prime-difference.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn is_prime_difference(num: i32) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]  --> examples/container-with-most-water.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Solution;
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `max_area` is never used
[INFO] [stderr]   --> examples/container-with-most-water.rs:12:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 11 | impl Solution {
[INFO] [stdout] 
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 12 |     pub fn max_area(height: Vec<i32>) -> i32 {
[INFO] [stdout] 
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> examples/plus-one.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |         while  i >= 0 {
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `length_of_longest_substring` is never used
[INFO] [stderr]  --> examples/longest-substring-without-repeating-characters.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode` (example "remove-duplicates-from-sorted-array") generated 2 warnings
[INFO] [stderr] warning: `leetcode` (example "move-zeroes") generated 1 warning
[INFO] [stderr] warning: `leetcode` (example "maximum-prime-difference") generated 2 warnings
[INFO] [stderr] warning: `leetcode` (example "container-with-most-water") generated 2 warnings
[INFO] [stderr] warning: `leetcode` (example "plus-one") generated 1 warning
[INFO] [stderr] warning: `leetcode` (example "longest-substring-without-repeating-characters") generated 1 warning
[INFO] [stderr] warning: unused import: `std::ptr::null`
[INFO] [stderr]  --> examples/reverse-linked-list.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ptr::null;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> examples/reverse-linked-list.rs:16:6
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl ListNode {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] 15 |   #[inline]
[INFO] [stderr] 16 |   fn new(val: i32) -> Self {
[INFO] [stderr]    |      ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Solution` is never constructed
[INFO] [stderr]   --> examples/reverse-linked-list.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct Solution;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `reverse_list` and `swap_pairs` are never used
[INFO] [stderr]   --> examples/reverse-linked-list.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl Solution {
[INFO] [stderr]    | ------------- associated functions in this implementation
[INFO] [stderr] 28 |     pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 41 |     pub fn swap_pairs(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode` (example "reverse-linked-list") generated 4 warnings (run `cargo fix --example "reverse-linked-list"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/leetcode-cbe6adbe5d560a7e)
[INFO] running `Command { std: "docker" "inspect" "6e2c9e603eddcf5efa5276e6b3327b6c22f7c66357608c2aa2ff64cb24aae822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2c9e603eddcf5efa5276e6b3327b6c22f7c66357608c2aa2ff64cb24aae822", kill_on_drop: false }`
[INFO] [stdout] 6e2c9e603eddcf5efa5276e6b3327b6c22f7c66357608c2aa2ff64cb24aae822