[INFO] cloning repository https://github.com/MirkoCovizzi/Leetcode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MirkoCovizzi/Leetcode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirkoCovizzi%2FLeetcode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirkoCovizzi%2FLeetcode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dcbc878eaa01b61dd45bb672c1d662ed37626cd
[INFO] checking MirkoCovizzi/Leetcode-rs against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMirkoCovizzi%2FLeetcode-rs" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MirkoCovizzi/Leetcode-rs on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MirkoCovizzi/Leetcode-rs
[INFO] finished tweaking git repo https://github.com/MirkoCovizzi/Leetcode-rs
[INFO] tweaked toml for git repo https://github.com/MirkoCovizzi/Leetcode-rs written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/MirkoCovizzi/Leetcode-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03c88d4c335ada98f83c45fa6d36b424c57693c6c1750086400cb5dfa32895d2
[INFO] running `Command { std: "docker" "start" "-a" "03c88d4c335ada98f83c45fa6d36b424c57693c6c1750086400cb5dfa32895d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03c88d4c335ada98f83c45fa6d36b424c57693c6c1750086400cb5dfa32895d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c88d4c335ada98f83c45fa6d36b424c57693c6c1750086400cb5dfa32895d2", kill_on_drop: false }`
[INFO] [stdout] 03c88d4c335ada98f83c45fa6d36b424c57693c6c1750086400cb5dfa32895d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf01d6f2f2a108cc8058b4c051508d2057b46c59d855c853604ad1cb9e3a4614
[INFO] running `Command { std: "docker" "start" "-a" "bf01d6f2f2a108cc8058b4c051508d2057b46c59d855c853604ad1cb9e3a4614", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking leetcode v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: function is never used: `max_profit`
[INFO] [stdout]  --> src/buy_sell_stock/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn max_profit(prices: 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 never used: `climb_stairs`
[INFO] [stdout]   --> src/climbing_stairs/mod.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `length_of_longest_substring`
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_sub_array`
[INFO] [stdout]  --> src/maximum_subarray/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn max_sub_array(nums: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dfs`
[INFO] [stdout]  --> src/number_of_islands/mod.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn dfs(grid: &mut Vec<Vec<char>>, i: i32, j: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_islands`
[INFO] [stdout]   --> src/number_of_islands/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn num_islands(grid: Vec<Vec<char>>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/remove_nth_node_from_end_of_list/mod.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remove_nth_from_end`
[INFO] [stdout]   --> src/remove_nth_node_from_end_of_list/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn remove_nth_from_end(head: Option<Box<ListNode>>, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/reverse_linked_list/mod.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_list`
[INFO] [stdout]   --> src/reverse_linked_list/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_zeroes`
[INFO] [stdout]  --> src/set_matrix_zeroes/mod.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn set_zeroes(matrix: &mut Vec<Vec<i32>>) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spiral_order`
[INFO] [stdout]  --> src/spiral_matrix/mod.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn spiral_order(matrix: Vec<Vec<i32>>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_sum`
[INFO] [stdout]  --> src/sum_two_integers/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_sum(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `two_sum`
[INFO] [stdout]  --> src/two_sum/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking leetcode v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `max_profit`
[INFO] [stdout]  --> src/buy_sell_stock/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn max_profit(prices: 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 never used: `climb_stairs`
[INFO] [stdout]   --> src/climbing_stairs/mod.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `length_of_longest_substring`
[INFO] [stdout]   --> src/longest_substring_without_repeating_characters/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_sub_array`
[INFO] [stdout]  --> src/maximum_subarray/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn max_sub_array(nums: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dfs`
[INFO] [stdout]  --> src/number_of_islands/mod.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn dfs(grid: &mut Vec<Vec<char>>, i: i32, j: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_islands`
[INFO] [stdout]   --> src/number_of_islands/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn num_islands(grid: Vec<Vec<char>>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/remove_nth_node_from_end_of_list/mod.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `remove_nth_from_end`
[INFO] [stdout]   --> src/remove_nth_node_from_end_of_list/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn remove_nth_from_end(head: Option<Box<ListNode>>, n: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/reverse_linked_list/mod.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_list`
[INFO] [stdout]   --> src/reverse_linked_list/mod.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_zeroes`
[INFO] [stdout]  --> src/set_matrix_zeroes/mod.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn set_zeroes(matrix: &mut Vec<Vec<i32>>) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spiral_order`
[INFO] [stdout]  --> src/spiral_matrix/mod.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn spiral_order(matrix: Vec<Vec<i32>>) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_sum`
[INFO] [stdout]  --> src/sum_two_integers/mod.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_sum(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `two_sum`
[INFO] [stdout]  --> src/two_sum/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "bf01d6f2f2a108cc8058b4c051508d2057b46c59d855c853604ad1cb9e3a4614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf01d6f2f2a108cc8058b4c051508d2057b46c59d855c853604ad1cb9e3a4614", kill_on_drop: false }`
[INFO] [stdout] bf01d6f2f2a108cc8058b4c051508d2057b46c59d855c853604ad1cb9e3a4614