[INFO] cloning repository https://github.com/one0day/rust-data-structure [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/one0day/rust-data-structure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fone0day%2Frust-data-structure", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fone0day%2Frust-data-structure'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1adbaaaa12bec5661e96db7b095958a7f0efb010 [INFO] checking one0day/rust-data-structure against master#19dd9535408db0f1ff3d16613619076aef524d19 for pr-115950 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fone0day%2Frust-data-structure" "/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/one0day/rust-data-structure on toolchain 19dd9535408db0f1ff3d16613619076aef524d19 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/one0day/rust-data-structure [INFO] finished tweaking git repo https://github.com/one0day/rust-data-structure [INFO] tweaked toml for git repo https://github.com/one0day/rust-data-structure written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/one0day/rust-data-structure 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" "+19dd9535408db0f1ff3d16613619076aef524d19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5bb067d43f8e91593f74cc59c32f32f59e6f5fafd814b1404c9aafa3826f3a75 [INFO] running `Command { std: "docker" "start" "-a" "5bb067d43f8e91593f74cc59c32f32f59e6f5fafd814b1404c9aafa3826f3a75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5bb067d43f8e91593f74cc59c32f32f59e6f5fafd814b1404c9aafa3826f3a75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bb067d43f8e91593f74cc59c32f32f59e6f5fafd814b1404c9aafa3826f3a75", kill_on_drop: false }` [INFO] [stdout] 5bb067d43f8e91593f74cc59c32f32f59e6f5fafd814b1404c9aafa3826f3a75 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+19dd9535408db0f1ff3d16613619076aef524d19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c3473f0a16e6a66ae6c6e04eb3181a7de287440de7fad95a0a381f3433d30518 [INFO] running `Command { std: "docker" "start" "-a" "c3473f0a16e6a66ae6c6e04eb3181a7de287440de7fad95a0a381f3433d30518", kill_on_drop: false }` [INFO] [stderr] Checking rust-data-structure v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `value` and `prev` are never read [INFO] [stdout] --> src/double_linked_list.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 7 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 8 | prev: LinkNode, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/double_linked_list.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 13 | pub fn new(value: T) -> Rc> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `DoubleLinkedList` is never constructed [INFO] [stdout] --> src/double_linked_list.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | struct DoubleLinkedList { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/double_linked_list.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl DoubleLinkedList [INFO] [stdout] | --------------------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | pub fn add(&mut self, value: T) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn append(&mut self, value: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 78 | pub fn insert(&mut self, value: T, index: usize) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn search(&self, value: T) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | pub fn remove(&mut self, value: T) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | pub fn traverse(&self, f: F) -> impl Iterator>>> [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_empty` and `length` are never used [INFO] [stdout] --> src/double_linked_list.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl DoubleLinkedList [INFO] [stdout] | --------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn length(&self) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.17s [INFO] running `Command { std: "docker" "inspect" "c3473f0a16e6a66ae6c6e04eb3181a7de287440de7fad95a0a381f3433d30518", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3473f0a16e6a66ae6c6e04eb3181a7de287440de7fad95a0a381f3433d30518", kill_on_drop: false }` [INFO] [stdout] c3473f0a16e6a66ae6c6e04eb3181a7de287440de7fad95a0a381f3433d30518