[INFO] cloning repository https://github.com/kihcyaZaynorB/leetcode-solution
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kihcyaZaynorB/leetcode-solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkihcyaZaynorB%2Fleetcode-solution", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkihcyaZaynorB%2Fleetcode-solution'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86e5fd20c77e7205897c768a820a7c439da0ab5f
[INFO] checking kihcyaZaynorB/leetcode-solution against master#c29082fe7dc6e902169cacbae165562a7e4a1fd6 for pr-120805
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkihcyaZaynorB%2Fleetcode-solution" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kihcyaZaynorB/leetcode-solution on toolchain c29082fe7dc6e902169cacbae165562a7e4a1fd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c29082fe7dc6e902169cacbae165562a7e4a1fd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kihcyaZaynorB/leetcode-solution
[INFO] finished tweaking git repo https://github.com/kihcyaZaynorB/leetcode-solution
[INFO] tweaked toml for git repo https://github.com/kihcyaZaynorB/leetcode-solution written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kihcyaZaynorB/leetcode-solution 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" "+c29082fe7dc6e902169cacbae165562a7e4a1fd6" "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
[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 kihcyaZaynorB/leetcode-solution against try#a76cc2633df38feca72f20156e7d9e4b074337f3 for pr-120805
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FkihcyaZaynorB%2Fleetcode-solution" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kihcyaZaynorB/leetcode-solution on toolchain a76cc2633df38feca72f20156e7d9e4b074337f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kihcyaZaynorB/leetcode-solution
[INFO] finished tweaking git repo https://github.com/kihcyaZaynorB/leetcode-solution
[INFO] tweaked toml for git repo https://github.com/kihcyaZaynorB/leetcode-solution written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kihcyaZaynorB/leetcode-solution 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" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e21c00e91c8a4af68c6f79d8448e77640d18ad37a75cd88085b6d5416a9dccea
[INFO] running `Command { std: "docker" "start" "-a" "e21c00e91c8a4af68c6f79d8448e77640d18ad37a75cd88085b6d5416a9dccea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e21c00e91c8a4af68c6f79d8448e77640d18ad37a75cd88085b6d5416a9dccea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e21c00e91c8a4af68c6f79d8448e77640d18ad37a75cd88085b6d5416a9dccea", kill_on_drop: false }`
[INFO] [stdout] e21c00e91c8a4af68c6f79d8448e77640d18ad37a75cd88085b6d5416a9dccea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e2daf72a7ce267b32af7d611fe11cffd20b37fcb9ad12a05ed2f5e4f678df9a
[INFO] running `Command { std: "docker" "start" "-a" "0e2daf72a7ce267b32af7d611fe11cffd20b37fcb9ad12a05ed2f5e4f678df9a", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode-solution v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Solution001` is never constructed
[INFO] [stdout]  --> src/solutions/solution_001.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Solution001 {}
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `two_sum` is never used
[INFO] [stdout]  --> src/solutions/solution_001.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution001 {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionHanota` is never constructed
[INFO] [stdout]  --> src/solutions/solution_hanota.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct SolutionHanota;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `tower_of_hanoi` is never used
[INFO] [stdout]  --> src/solutions/solution_hanota.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl SolutionHanota {
[INFO] [stdout]   | ------------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn tower_of_hanoi(a: &mut Vec<i32>, b: &mut Vec<i32>, c: &mut Vec<i32>) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "0e2daf72a7ce267b32af7d611fe11cffd20b37fcb9ad12a05ed2f5e4f678df9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2daf72a7ce267b32af7d611fe11cffd20b37fcb9ad12a05ed2f5e4f678df9a", kill_on_drop: false }`
[INFO] [stdout] 0e2daf72a7ce267b32af7d611fe11cffd20b37fcb9ad12a05ed2f5e4f678df9a