[INFO] cloning repository https://github.com/oOXuOo/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oOXuOo/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoOXuOo%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoOXuOo%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 131994314454a4383b02c2ca317c20dc07632b6e
[INFO] checking oOXuOo/leetcode against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoOXuOo%2Fleetcode" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oOXuOo/leetcode on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oOXuOo/leetcode
[INFO] finished tweaking git repo https://github.com/oOXuOo/leetcode
[INFO] tweaked toml for git repo https://github.com/oOXuOo/leetcode written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/oOXuOo/leetcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3cfa28bb765423fb0cec5f55ede3be365a7bae474532180aac98f0b5f27e9ee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e3cfa28bb765423fb0cec5f55ede3be365a7bae474532180aac98f0b5f27e9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3cfa28bb765423fb0cec5f55ede3be365a7bae474532180aac98f0b5f27e9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3cfa28bb765423fb0cec5f55ede3be365a7bae474532180aac98f0b5f27e9ee", kill_on_drop: false }`
[INFO] [stdout] e3cfa28bb765423fb0cec5f55ede3be365a7bae474532180aac98f0b5f27e9ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c9bebd560e9f9c822ab5ff5b58a717a18cf2a11f39bf45431972a83579c2f79
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5c9bebd560e9f9c822ab5ff5b58a717a18cf2a11f39bf45431972a83579c2f79", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/dynamic_programming/longest_str_chain.rs:62:1
[INFO] [stdout]    |
[INFO] [stdout] 62 | / macro_rules! vec_of_strings {
[INFO] [stdout] 63 | |     ($($x:expr),*) => (vec![$($x.to_string()),*]);
[INFO] [stdout] 64 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]   --> src/dynamic_programming/triangle.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Solution {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `minimum_total`
[INFO] [stdout]   --> src/dynamic_programming/triangle.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn minimum_total(triangle: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cache_i_j`
[INFO] [stdout]   --> src/dynamic_programming/triangle.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn cache_i_j(triangle: &Vec<Vec<i32>>,
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]   --> src/dynamic_programming/coin_change.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Solution {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `coin_change`
[INFO] [stdout]   --> src/dynamic_programming/coin_change.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn coin_change(coins: Vec<i32>, amount: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inner`
[INFO] [stdout]   --> src/dynamic_programming/coin_change.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn inner(coins: &Vec<i32>, amount: i32,
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]   --> src/dynamic_programming/integer_break.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Solution {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `integer_break`
[INFO] [stdout]   --> src/dynamic_programming/integer_break.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn integer_break(n: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inner`
[INFO] [stdout]   --> src/dynamic_programming/integer_break.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn inner(n: i32, sub_map: &mut HashMap<i32, i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]   --> src/dynamic_programming/longest_str_chain.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Solution {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `longest_str_chain`
[INFO] [stdout]   --> src/dynamic_programming/longest_str_chain.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn longest_str_chain(words: Vec<String>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inner`
[INFO] [stdout]   --> src/dynamic_programming/longest_str_chain.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn inner(word: &String, words: &Vec<String>,
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_index`
[INFO] [stdout]   --> src/dynamic_programming/longest_str_chain.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn get_index(name: &String, array: &Vec<String>) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]   --> src/dynamic_programming/burst_balloons.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Solution {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_coins`
[INFO] [stdout]   --> src/dynamic_programming/burst_balloons.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn max_coins(mut nums: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_max`
[INFO] [stdout]   --> src/dynamic_programming/burst_balloons.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn get_max(nums: &Vec<i32>, sub_map: &mut Vec<Vec<i32>>,
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cache_get_sub`
[INFO] [stdout]   --> src/dynamic_programming/burst_balloons.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn cache_get_sub(nums: &Vec<i32>, sub_map: &mut Vec<Vec<i32>>,
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]   --> src/divide_and_conquer/create_maximum_number.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Solution {}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_number`
[INFO] [stdout]   --> src/divide_and_conquer/create_maximum_number.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn max_number(nums1: Vec<i32>, nums2: Vec<i32>, k: i32) -> Vec<i32> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_max_range`
[INFO] [stdout]   --> src/divide_and_conquer/create_maximum_number.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn get_max_range(nums: &Vec<i32>, cnt: usize) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `merge_max_range`
[INFO] [stdout]   --> src/divide_and_conquer/create_maximum_number.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn merge_max_range(v1: &[i32], v2: &[i32]) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vector_compare`
[INFO] [stdout]   --> src/divide_and_conquer/create_maximum_number.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn vector_compare(v1: &[i32], v2: &[i32]) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/divide_and_conquer/longest_substring_with_at_least_k_repeating_characters.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `longest_substring`
[INFO] [stdout]   --> src/divide_and_conquer/longest_substring_with_at_least_k_repeating_characters.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn longest_substring(s: String, k: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inner`
[INFO] [stdout]   --> src/divide_and_conquer/longest_substring_with_at_least_k_repeating_characters.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn inner(str: &Vec<char>, k: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/basic/zigzag_conversion.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution{}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `convert`
[INFO] [stdout]  --> src/basic/zigzag_conversion.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn convert(s: String, n: i32) -> String {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> src/basic/merge_intervals.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Solution {}
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `merge`
[INFO] [stdout]   --> src/basic/merge_intervals.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn merge(mut intervals: Vec<Vec<i32>>) -> Vec<Vec<i32>> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "5c9bebd560e9f9c822ab5ff5b58a717a18cf2a11f39bf45431972a83579c2f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c9bebd560e9f9c822ab5ff5b58a717a18cf2a11f39bf45431972a83579c2f79", kill_on_drop: false }`
[INFO] [stdout] 5c9bebd560e9f9c822ab5ff5b58a717a18cf2a11f39bf45431972a83579c2f79