[INFO] cloning repository https://github.com/didof/leet_code_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/didof/leet_code_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdidof%2Fleet_code_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdidof%2Fleet_code_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3dfe16a241ba3f1abfcf56978361b8b14f448a8
[INFO] checking didof/leet_code_rust against master#6a9758d4f38d4763bd437c48fa7e5246cecf8d04 for pr-124355
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdidof%2Fleet_code_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/didof/leet_code_rust on toolchain 6a9758d4f38d4763bd437c48fa7e5246cecf8d04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/didof/leet_code_rust
[INFO] finished tweaking git repo https://github.com/didof/leet_code_rust
[INFO] tweaked toml for git repo https://github.com/didof/leet_code_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/didof/leet_code_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" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "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 didof/leet_code_rust against try#99e7531f0d1cf95a50aff9cccb24863963e6bbe2 for pr-124355
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdidof%2Fleet_code_rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/didof/leet_code_rust on toolchain 99e7531f0d1cf95a50aff9cccb24863963e6bbe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/didof/leet_code_rust
[INFO] finished tweaking git repo https://github.com/didof/leet_code_rust
[INFO] tweaked toml for git repo https://github.com/didof/leet_code_rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/didof/leet_code_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" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23a8608d9fbd5b4b7222862959a69f739cbafa9546eebcd493f65ee2c2489da6
[INFO] running `Command { std: "docker" "start" "-a" "23a8608d9fbd5b4b7222862959a69f739cbafa9546eebcd493f65ee2c2489da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23a8608d9fbd5b4b7222862959a69f739cbafa9546eebcd493f65ee2c2489da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a8608d9fbd5b4b7222862959a69f739cbafa9546eebcd493f65ee2c2489da6", kill_on_drop: false }`
[INFO] [stdout] 23a8608d9fbd5b4b7222862959a69f739cbafa9546eebcd493f65ee2c2489da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b4aa7ac60ea7e764b36ff3d8dd1762e5a44a88fb0545c8c74b9de1914625c84
[INFO] running `Command { std: "docker" "start" "-a" "0b4aa7ac60ea7e764b36ff3d8dd1762e5a44a88fb0545c8c74b9de1914625c84", kill_on_drop: false }`
[INFO] [stderr]     Checking leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `PalindromeNumber` is never constructed
[INFO] [stdout]  --> src/easy/id9_palindrome_number.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct PalindromeNumber;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `is_palindrome` is never used
[INFO] [stdout]  --> src/easy/id9_palindrome_number.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl PalindromeNumber {
[INFO] [stdout]   | --------------------- associated function in this implementation
[INFO] [stdout] 6 |     fn is_palindrome(mut x: i32) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RomanNumbers` is never constructed
[INFO] [stdout]  --> src/easy/id13_roman_numbers.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct RomanNumbers;
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_roman_to_int32` is never used
[INFO] [stdout]  --> src/easy/id13_roman_numbers.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl RomanNumbers {
[INFO] [stdout]   | ----------------- associated function in this implementation
[INFO] [stdout] 6 |     fn from_roman_to_int32(rn: String) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TwoSum` is never constructed
[INFO] [stdout]  --> src/easy/id1_two_sum.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct TwoSum;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `brute_force`, `two_pass_hash_map`, and `one_pass_hash_map` are never used
[INFO] [stdout]   --> src/easy/id1_two_sum.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl TwoSum {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     fn brute_force(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn two_pass_hash_map(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn one_pass_hash_map(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "0b4aa7ac60ea7e764b36ff3d8dd1762e5a44a88fb0545c8c74b9de1914625c84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b4aa7ac60ea7e764b36ff3d8dd1762e5a44a88fb0545c8c74b9de1914625c84", kill_on_drop: false }`
[INFO] [stdout] 0b4aa7ac60ea7e764b36ff3d8dd1762e5a44a88fb0545c8c74b9de1914625c84