[INFO] cloning repository https://github.com/slyk26/leetcode [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slyk26/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslyk26%2Fleetcode", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslyk26%2Fleetcode'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c5446e086b49675b53e3068d91f75f69dd3da404 [INFO] checking slyk26/leetcode against try#39605810efb1a0d52f955bfba9e4eec7a01d5deb for pr-153692 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslyk26%2Fleetcode" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/slyk26/leetcode [INFO] finished tweaking git repo https://github.com/slyk26/leetcode [INFO] tweaked toml for git repo https://github.com/slyk26/leetcode written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/slyk26/leetcode on toolchain 39605810efb1a0d52f955bfba9e4eec7a01d5deb [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/slyk26/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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "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 [INFO] checking slyk26/leetcode against try#39605810efb1a0d52f955bfba9e4eec7a01d5deb for pr-153692 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslyk26%2Fleetcode" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/slyk26/leetcode [INFO] finished tweaking git repo https://github.com/slyk26/leetcode [INFO] tweaked toml for git repo https://github.com/slyk26/leetcode written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/slyk26/leetcode on toolchain 39605810efb1a0d52f955bfba9e4eec7a01d5deb [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/slyk26/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" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 771087f4617a8f33769e7fcb991c322a1770e7bbc0808a2658368d9b94228e0f [INFO] running `Command { std: "docker" "start" "-a" "771087f4617a8f33769e7fcb991c322a1770e7bbc0808a2658368d9b94228e0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "771087f4617a8f33769e7fcb991c322a1770e7bbc0808a2658368d9b94228e0f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "771087f4617a8f33769e7fcb991c322a1770e7bbc0808a2658368d9b94228e0f", kill_on_drop: false }` [INFO] [stdout] 771087f4617a8f33769e7fcb991c322a1770e7bbc0808a2658368d9b94228e0f [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+39605810efb1a0d52f955bfba9e4eec7a01d5deb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c4b389142896c5d6e2d04fd53ac117590cb563ae6bda5db7f1df87d9fb89c257 [INFO] running `Command { std: "docker" "start" "-a" "c4b389142896c5d6e2d04fd53ac117590cb563ae6bda5db7f1df87d9fb89c257", kill_on_drop: false }` [INFO] [stderr] Checking lc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 13 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 14 | #[inline] [INFO] [stdout] 15 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_ll` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn to_ll(vec: Vec) -> Option> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_vec` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn to_vec(mut ll: Option>) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge_k_lists` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 46 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 47 | pub fn merge_k_lists(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution2` is never constructed [INFO] [stdout] --> src/bin/RemoveElement.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Solution2; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `remove_element` is never used [INFO] [stdout] --> src/bin/RemoveElement.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Solution2 { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 17 | pub fn remove_element(nums: &mut Vec, val: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution2` is never constructed [INFO] [stdout] --> src/bin/RemoveElement.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Solution2; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `remove_element` is never used [INFO] [stdout] --> src/bin/RemoveElement.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl Solution2 { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 17 | pub fn remove_element(nums: &mut Vec, val: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `HashMap` and `HashSet` [INFO] [stdout] --> src/bin/RansomNote.rs:1:24 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::{HashMap, HashSet}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Solution; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 13 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 14 | #[inline] [INFO] [stdout] 15 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_ll` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn to_ll(vec: Vec) -> Option> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_vec` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn to_vec(mut ll: Option>) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `merge_k_lists` is never used [INFO] [stdout] --> src/bin/MergeKSortedLists.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 46 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 47 | pub fn merge_k_lists(lists: Vec>>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `HashMap` and `HashSet` [INFO] [stdout] --> src/bin/RansomNote.rs:1:24 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::{HashMap, HashSet}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s [INFO] running `Command { std: "docker" "inspect" "c4b389142896c5d6e2d04fd53ac117590cb563ae6bda5db7f1df87d9fb89c257", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4b389142896c5d6e2d04fd53ac117590cb563ae6bda5db7f1df87d9fb89c257", kill_on_drop: false }` [INFO] [stdout] c4b389142896c5d6e2d04fd53ac117590cb563ae6bda5db7f1df87d9fb89c257