[INFO] cloning repository https://github.com/songpengfei159/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/songpengfei159/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsongpengfei159%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsongpengfei159%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97d0588b81330fba87830877b8e1f96622954f71
[INFO] checking songpengfei159/leetcode against try#1f5783cbeb5da8b38566d718631d016891e9c912 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsongpengfei159%2Fleetcode" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/songpengfei159/leetcode on toolchain 1f5783cbeb5da8b38566d718631d016891e9c912
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/songpengfei159/leetcode
[INFO] finished tweaking git repo https://github.com/songpengfei159/leetcode
[INFO] tweaked toml for git repo https://github.com/songpengfei159/leetcode written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/songpengfei159/leetcode 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" "+1f5783cbeb5da8b38566d718631d016891e9c912" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4bb25a5d828c31dc7480c9d3b2a9c5f421ba0e739c104de4cb6591dcae402d6
[INFO] running `Command { std: "docker" "start" "-a" "b4bb25a5d828c31dc7480c9d3b2a9c5f421ba0e739c104de4cb6591dcae402d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4bb25a5d828c31dc7480c9d3b2a9c5f421ba0e739c104de4cb6591dcae402d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4bb25a5d828c31dc7480c9d3b2a9c5f421ba0e739c104de4cb6591dcae402d6", kill_on_drop: false }`
[INFO] [stdout] b4bb25a5d828c31dc7480c9d3b2a9c5f421ba0e739c104de4cb6591dcae402d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30e71622460414d51ca7772780468e756f1a7a0555cad9632b1c9574b2bc010f
[INFO] running `Command { std: "docker" "start" "-a" "30e71622460414d51ca7772780468e756f1a7a0555cad9632b1c9574b2bc010f", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `array::to_num_sum::Solution`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use array::to_num_sum::Solution;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array::to_num_sum::Solution`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use array::to_num_sum::Solution;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/array/two_array_mid.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | /         loop {
[INFO] [stdout] 19 | |             
[INFO] [stdout] 20 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 21 |           return 1;
[INFO] [stdout]    |           ^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/array/two_array_mid.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | /         loop {
[INFO] [stdout] 19 | |             
[INFO] [stdout] 20 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 21 |           return 1;
[INFO] [stdout]    |           ^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1_len`
[INFO] [stdout]   --> src/array/two_array_mid.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let a1_len = self.arr1.len();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a1_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1_len`
[INFO] [stdout]   --> src/array/two_array_mid.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let a1_len = self.arr1.len();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a1_len`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2_len`
[INFO] [stdout]   --> src/array/two_array_mid.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let a2_len = self.arr2.len();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a2_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2_len`
[INFO] [stdout]   --> src/array/two_array_mid.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let a2_len = self.arr2.len();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_a2_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1_left`
[INFO] [stdout]   --> src/array/two_array_mid.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let a1_left :usize =0;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a1_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a1_left`
[INFO] [stdout]   --> src/array/two_array_mid.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let a1_left :usize =0;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a1_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2_left`
[INFO] [stdout]   --> src/array/two_array_mid.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let a2_left :usize =0;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a2_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a2_left`
[INFO] [stdout]   --> src/array/two_array_mid.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let a2_left :usize =0;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a2_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let target = 6;
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let target = 6;
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/array/to_num_sum.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution{
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `create` and `find_target` are never used
[INFO] [stdout]   --> src/array/to_num_sum.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Solution {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn create(arr: Vec<i32>,target: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn find_target(&self) -> Vec<i32>{
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/array/to_num_sum.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Solution{
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `create` and `find_target` are never used
[INFO] [stdout]   --> src/array/to_num_sum.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Solution {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn create(arr: Vec<i32>,target: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn find_target(&self) -> Vec<i32>{
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "30e71622460414d51ca7772780468e756f1a7a0555cad9632b1c9574b2bc010f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e71622460414d51ca7772780468e756f1a7a0555cad9632b1c9574b2bc010f", kill_on_drop: false }`
[INFO] [stdout] 30e71622460414d51ca7772780468e756f1a7a0555cad9632b1c9574b2bc010f