[INFO] cloning repository https://github.com/Vanderkast/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/Vanderkast/leetcode_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanderkast%2Fleetcode_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanderkast%2Fleetcode_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f30abf9e97ec92ec1e17d4a078efac0819aef2e
[INFO] testing Vanderkast/leetcode_rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanderkast%2Fleetcode_rust" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vanderkast/leetcode_rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vanderkast/leetcode_rust
[INFO] finished tweaking git repo https://github.com/Vanderkast/leetcode_rust
[INFO] tweaked toml for git repo https://github.com/Vanderkast/leetcode_rust written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/Vanderkast/leetcode_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73711d0a2fbbbc3a40144444da4eafdbfde221f57fe637e0b3a92d0c81159acf
[INFO] running `Command { std: "docker" "start" "-a" "73711d0a2fbbbc3a40144444da4eafdbfde221f57fe637e0b3a92d0c81159acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73711d0a2fbbbc3a40144444da4eafdbfde221f57fe637e0b3a92d0c81159acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73711d0a2fbbbc3a40144444da4eafdbfde221f57fe637e0b3a92d0c81159acf", kill_on_drop: false }`
[INFO] [stdout] 73711d0a2fbbbc3a40144444da4eafdbfde221f57fe637e0b3a92d0c81159acf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5c0584910880f79ff7576d2e1ffd2d3a2056f1d2c694c6ee77bbe27e2bae82a
[INFO] running `Command { std: "docker" "start" "-a" "f5c0584910880f79ff7576d2e1ffd2d3a2056f1d2c694c6ee77bbe27e2bae82a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling perfect_squares v0.1.0 (/opt/rustwide/workdir/perfect_squares)
[INFO] [stderr]    Compiling island_perimeter v0.1.0 (/opt/rustwide/workdir/island_perimeter)
[INFO] [stderr]    Compiling find_town_judge v0.1.0 (/opt/rustwide/workdir/find_town_judge)
[INFO] [stderr]    Compiling find_star_graph_center v0.1.0 (/opt/rustwide/workdir/find_star_graph_center)
[INFO] [stderr]    Compiling word_search v0.1.0 (/opt/rustwide/workdir/word_search)
[INFO] [stderr]    Compiling longest_str_no_repeat v0.1.0 (/opt/rustwide/workdir/longest_str_no_repeat)
[INFO] [stderr]    Compiling valid_parentheses v0.1.0 (/opt/rustwide/workdir/valid_parentheses)
[INFO] [stderr]    Compiling best_time_but_sell v0.1.0 (/opt/rustwide/workdir/best_time_but_sell)
[INFO] [stderr]    Compiling biwise_and_range v0.1.0 (/opt/rustwide/workdir/biwise_and_range)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> word_search/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> word_search/src/main.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn exist(board: Vec<Vec<char>>, word: String) -> bool {
[INFO] [stdout]   |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]  --> word_search/src/main.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn exist(board: Vec<Vec<char>>, word: String) -> bool {
[INFO] [stdout]   |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> island_perimeter/src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let test = vec![
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> find_town_judge/src/main.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> island_perimeter/src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let test = vec![
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trust`
[INFO] [stdout]  --> find_town_judge/src/main.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_trust`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> find_town_judge/src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | 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: `find_judge`
[INFO] [stdout]  --> find_town_judge/src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling guessing_game_player v0.1.0 (/opt/rustwide/workdir/guessing_game_player)
[INFO] [stdout] warning: method `guessNumber` should have a snake case name
[INFO] [stdout]   --> guessing_game_player/src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     unsafe fn guessNumber(mut right: i32) -> i32 {
[INFO] [stdout]    |               ^^^^^^^^^^^ help: convert the identifier to snake case: `guess_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 33s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5c0584910880f79ff7576d2e1ffd2d3a2056f1d2c694c6ee77bbe27e2bae82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c0584910880f79ff7576d2e1ffd2d3a2056f1d2c694c6ee77bbe27e2bae82a", kill_on_drop: false }`
[INFO] [stdout] f5c0584910880f79ff7576d2e1ffd2d3a2056f1d2c694c6ee77bbe27e2bae82a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b980310a87ce32288f6bc8556b2af721ec1730572c60d4eb69b93c74e93b33af
[INFO] running `Command { std: "docker" "start" "-a" "b980310a87ce32288f6bc8556b2af721ec1730572c60d4eb69b93c74e93b33af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling word_search v0.1.0 (/opt/rustwide/workdir/word_search)
[INFO] [stderr]    Compiling biwise_and_range v0.1.0 (/opt/rustwide/workdir/biwise_and_range)
[INFO] [stderr]    Compiling perfect_squares v0.1.0 (/opt/rustwide/workdir/perfect_squares)
[INFO] [stderr]    Compiling find_town_judge v0.1.0 (/opt/rustwide/workdir/find_town_judge)
[INFO] [stderr]    Compiling island_perimeter v0.1.0 (/opt/rustwide/workdir/island_perimeter)
[INFO] [stderr]    Compiling find_star_graph_center v0.1.0 (/opt/rustwide/workdir/find_star_graph_center)
[INFO] [stderr]    Compiling valid_parentheses v0.1.0 (/opt/rustwide/workdir/valid_parentheses)
[INFO] [stderr]    Compiling longest_str_no_repeat v0.1.0 (/opt/rustwide/workdir/longest_str_no_repeat)
[INFO] [stderr]    Compiling best_time_but_sell v0.1.0 (/opt/rustwide/workdir/best_time_but_sell)
[INFO] [stderr]    Compiling guessing_game_player v0.1.0 (/opt/rustwide/workdir/guessing_game_player)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> word_search/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> find_town_judge/src/main.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trust`
[INFO] [stdout]  --> find_town_judge/src/main.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_trust`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> find_town_judge/src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | 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: `find_judge`
[INFO] [stdout]  --> find_town_judge/src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> word_search/src/main.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn exist(board: Vec<Vec<char>>, word: String) -> bool {
[INFO] [stdout]   |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]  --> word_search/src/main.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn exist(board: Vec<Vec<char>>, word: String) -> bool {
[INFO] [stdout]   |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> island_perimeter/src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let test = vec![
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> island_perimeter/src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let test = vec![
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `guessNumber` should have a snake case name
[INFO] [stdout]   --> guessing_game_player/src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 |     unsafe fn guessNumber(mut right: i32) -> i32 {
[INFO] [stdout]    |               ^^^^^^^^^^^ help: convert the identifier to snake case: `guess_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2m 15s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/best_time_but_sell-2b10148a8fbc95f5)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/biwise_and_range-e33f8cd226651575)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/find_star_graph_center-9cda844ffe1134f6)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/find_town_judge-c5465308ce5b0d3a)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game_player-4f823446e130684b)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/island_perimeter-1ce54b74b67364fa)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/longest_str_no_repeat-a6ef63f3774f7aaf)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/perfect_squares-fc720db6c3c1afc7)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/valid_parentheses-41a817499ffbb615)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/word_search-bceb258bc9648985)
[INFO] running `Command { std: "docker" "inspect" "b980310a87ce32288f6bc8556b2af721ec1730572c60d4eb69b93c74e93b33af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b980310a87ce32288f6bc8556b2af721ec1730572c60d4eb69b93c74e93b33af", kill_on_drop: false }`
[INFO] [stdout] b980310a87ce32288f6bc8556b2af721ec1730572c60d4eb69b93c74e93b33af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 086163f95018ce69cbb6f8114811adf521380c5e4b53e09b33c35487bc46f0d1
[INFO] running `Command { std: "docker" "start" "-a" "086163f95018ce69cbb6f8114811adf521380c5e4b53e09b33c35487bc46f0d1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> word_search/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]  --> word_search/src/main.rs:6:18
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn exist(board: Vec<Vec<char>>, word: String) -> bool {
[INFO] [stderr]   |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `word`
[INFO] [stderr]  --> word_search/src/main.rs:6:41
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn exist(board: Vec<Vec<char>>, word: String) -> bool {
[INFO] [stderr]   |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]   --> island_perimeter/src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let test = vec![
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]   --> island_perimeter/src/main.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let test = vec![
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]  --> find_town_judge/src/main.rs:5:23
[INFO] [stderr]   |
[INFO] [stderr] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stderr]   |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trust`
[INFO] [stderr]  --> find_town_judge/src/main.rs:5:31
[INFO] [stderr]   |
[INFO] [stderr] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stderr]   |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_trust`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> find_town_judge/src/main.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `find_judge`
[INFO] [stderr]  --> find_town_judge/src/main.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 |     pub fn find_judge(n: i32, trust: Vec<Vec<i32>>) -> i32 {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `word_search` (bin "word_search" test) generated 3 warnings
[INFO] [stderr] warning: `island_perimeter` (bin "island_perimeter" test) generated 2 warnings
[INFO] [stderr] warning: `find_town_judge` (bin "find_town_judge" test) generated 4 warnings
[INFO] [stderr] warning: method `guessNumber` should have a snake case name
[INFO] [stderr]   --> guessing_game_player/src/main.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 |     unsafe fn guessNumber(mut right: i32) -> i32 {
[INFO] [stderr]    |               ^^^^^^^^^^^ help: convert the identifier to snake case: `guess_number`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `guessing_game_player` (bin "guessing_game_player" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/best_time_but_sell-2b10148a8fbc95f5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/biwise_and_range-e33f8cd226651575)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/find_star_graph_center-9cda844ffe1134f6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/find_town_judge-c5465308ce5b0d3a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game_player-4f823446e130684b)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/island_perimeter-1ce54b74b67364fa)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/longest_str_no_repeat-a6ef63f3774f7aaf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/perfect_squares-fc720db6c3c1afc7)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/valid_parentheses-41a817499ffbb615)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/word_search-bceb258bc9648985)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "086163f95018ce69cbb6f8114811adf521380c5e4b53e09b33c35487bc46f0d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086163f95018ce69cbb6f8114811adf521380c5e4b53e09b33c35487bc46f0d1", kill_on_drop: false }`
[INFO] [stdout] 086163f95018ce69cbb6f8114811adf521380c5e4b53e09b33c35487bc46f0d1