[INFO] cloning repository https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-Rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhenbangYou%2FDoubly-Linked-List-in-Safe-Rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhenbangYou%2FDoubly-Linked-List-in-Safe-Rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5ed8894d4981b8c369f14ea41540595897a38b75 [INFO] checking ZhenbangYou/Doubly-Linked-List-in-Safe-Rust/5ed8894d4981b8c369f14ea41540595897a38b75 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZhenbangYou%2FDoubly-Linked-List-in-Safe-Rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-Rust on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-Rust [INFO] finished tweaking git repo https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-Rust [INFO] tweaked toml for git repo https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-Rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ZhenbangYou/Doubly-Linked-List-in-Safe-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a9fb7da5fed1fdafa691bf492a59b0c0150f5618b31db8989fa18ab0b01b0f39 [INFO] running `Command { std: "docker" "start" "-a" "a9fb7da5fed1fdafa691bf492a59b0c0150f5618b31db8989fa18ab0b01b0f39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a9fb7da5fed1fdafa691bf492a59b0c0150f5618b31db8989fa18ab0b01b0f39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9fb7da5fed1fdafa691bf492a59b0c0150f5618b31db8989fa18ab0b01b0f39", kill_on_drop: false }` [INFO] [stdout] a9fb7da5fed1fdafa691bf492a59b0c0150f5618b31db8989fa18ab0b01b0f39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 64870c27d6faa0bbddc0d2d724f7f9435ab6d7d3f99ac47b8f067fd65969a887 [INFO] running `Command { std: "docker" "start" "-a" "64870c27d6faa0bbddc0d2d724f7f9435ab6d7d3f99ac47b8f067fd65969a887", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking doubly_linked_list_in_safe_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `list::*` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use list::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `list::*` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use list::*; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 17 | impl ListNode { [INFO] [stdout] | ------------------------------- associated function in this implementation [INFO] [stdout] 18 | fn new(item: &T) -> ListNode { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `tail` is never read [INFO] [stdout] --> src/main.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 27 | pub struct List { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 28 | head: Option>>>, [INFO] [stdout] 29 | tail: Option>>>, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/main.rs:33:16 [INFO] [stdout] | [INFO] [stdout] 32 | impl List { [INFO] [stdout] | ----------------------------------------------- associated items in this implementation [INFO] [stdout] 33 | pub fn new() -> List { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn find_internal(&self, node: Rc>>, value: &T) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn find(&self, value: &T) -> bool { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 57 | pub fn insert_front(&mut self, val: &T) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | fn delete_internal(&mut self, node: Rc>>, value: &T) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 82 | pub fn delete(&mut self, value: &T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | pub fn delete_node(&mut self, node: Rc>>) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings 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 2.82s [INFO] running `Command { std: "docker" "inspect" "64870c27d6faa0bbddc0d2d724f7f9435ab6d7d3f99ac47b8f067fd65969a887", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64870c27d6faa0bbddc0d2d724f7f9435ab6d7d3f99ac47b8f067fd65969a887", kill_on_drop: false }` [INFO] [stdout] 64870c27d6faa0bbddc0d2d724f7f9435ab6d7d3f99ac47b8f067fd65969a887