[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] checking Vanderkast/leetcode_rust against master#bb89df6903539e7014b8db29bccd6a9ee9553122 for pr-121072 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanderkast%2Fleetcode_rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Vanderkast/leetcode_rust on toolchain bb89df6903539e7014b8db29bccd6a9ee9553122 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "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-5-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking Vanderkast/leetcode_rust against try#e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 for pr-121072 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanderkast%2Fleetcode_rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Vanderkast/leetcode_rust on toolchain e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "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-5-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c94631bab597511121d8d38e194cdca4c20eeb9100ff661e8e4b06c2cb0311b1 [INFO] running `Command { std: "docker" "start" "-a" "c94631bab597511121d8d38e194cdca4c20eeb9100ff661e8e4b06c2cb0311b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c94631bab597511121d8d38e194cdca4c20eeb9100ff661e8e4b06c2cb0311b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c94631bab597511121d8d38e194cdca4c20eeb9100ff661e8e4b06c2cb0311b1", kill_on_drop: false }` [INFO] [stdout] c94631bab597511121d8d38e194cdca4c20eeb9100ff661e8e4b06c2cb0311b1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5f71e3a656e0155a47f9392768d3e43b8338d6ac4eee5fd2de9de727c50553df [INFO] running `Command { std: "docker" "start" "-a" "5f71e3a656e0155a47f9392768d3e43b8338d6ac4eee5fd2de9de727c50553df", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking valid_parentheses v0.1.0 (/opt/rustwide/workdir/valid_parentheses) [INFO] [stderr] Checking find_town_judge v0.1.0 (/opt/rustwide/workdir/find_town_judge) [INFO] [stderr] Checking island_perimeter v0.1.0 (/opt/rustwide/workdir/island_perimeter) [INFO] [stderr] Checking biwise_and_range v0.1.0 (/opt/rustwide/workdir/biwise_and_range) [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>) -> 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>) -> i32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_trust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [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 `find_judge` is never used [INFO] [stdout] --> find_town_judge/src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 4 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 5 | pub fn find_judge(n: i32, trust: Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [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] [stderr] Checking best_time_but_sell v0.1.0 (/opt/rustwide/workdir/best_time_but_sell) [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking longest_str_no_repeat v0.1.0 (/opt/rustwide/workdir/longest_str_no_repeat) [INFO] [stderr] Checking find_star_graph_center v0.1.0 (/opt/rustwide/workdir/find_star_graph_center) [INFO] [stderr] Checking perfect_squares v0.1.0 (/opt/rustwide/workdir/perfect_squares) [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: 2 warnings emitted [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>) -> 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>) -> i32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_trust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [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 `find_judge` is never used [INFO] [stdout] --> find_town_judge/src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 4 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 5 | pub fn find_judge(n: i32, trust: Vec>) -> i32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking word_search v0.1.0 (/opt/rustwide/workdir/word_search) [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>, 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>, word: String) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [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>, 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>, word: String) -> bool { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_word` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking 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] [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.24s [INFO] running `Command { std: "docker" "inspect" "5f71e3a656e0155a47f9392768d3e43b8338d6ac4eee5fd2de9de727c50553df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f71e3a656e0155a47f9392768d3e43b8338d6ac4eee5fd2de9de727c50553df", kill_on_drop: false }` [INFO] [stdout] 5f71e3a656e0155a47f9392768d3e43b8338d6ac4eee5fd2de9de727c50553df