[INFO] cloning repository https://github.com/bradleygichuru/singly-linkedlist [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bradleygichuru/singly-linkedlist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbradleygichuru%2Fsingly-linkedlist", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbradleygichuru%2Fsingly-linkedlist'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c775106727cef1bfc1bcb289c3cc624d21fd0a8d [INFO] checking bradleygichuru/singly-linkedlist against try#9228062c11d321a3ea08123f57e47533a3c88b00 for pr-154781 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbradleygichuru%2Fsingly-linkedlist" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/bradleygichuru/singly-linkedlist [INFO] finished tweaking git repo https://github.com/bradleygichuru/singly-linkedlist [INFO] tweaked toml for git repo https://github.com/bradleygichuru/singly-linkedlist written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/bradleygichuru/singly-linkedlist on toolchain 9228062c11d321a3ea08123f57e47533a3c88b00 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9228062c11d321a3ea08123f57e47533a3c88b00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/bradleygichuru/singly-linkedlist 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" "+9228062c11d321a3ea08123f57e47533a3c88b00" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+9228062c11d321a3ea08123f57e47533a3c88b00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a47ec8f71ef91684d647328aff6cf5a7ab9a78558b57cd4faaa44cfac8e96cc5 [INFO] running `Command { std: "docker" "start" "-a" "a47ec8f71ef91684d647328aff6cf5a7ab9a78558b57cd4faaa44cfac8e96cc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a47ec8f71ef91684d647328aff6cf5a7ab9a78558b57cd4faaa44cfac8e96cc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a47ec8f71ef91684d647328aff6cf5a7ab9a78558b57cd4faaa44cfac8e96cc5", kill_on_drop: false }` [INFO] [stdout] a47ec8f71ef91684d647328aff6cf5a7ab9a78558b57cd4faaa44cfac8e96cc5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+9228062c11d321a3ea08123f57e47533a3c88b00" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e0efbf1b03172327e0e7ea93991e93152d00cb16c3bd5fd7a13aed0951279d4e [INFO] running `Command { std: "docker" "start" "-a" "e0efbf1b03172327e0e7ea93991e93152d00cb16c3bd5fd7a13aed0951279d4e", kill_on_drop: false }` [INFO] [stderr] Checking my-linkedlist-imp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/main.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SinglyLinkedList` is never constructed [INFO] [stdout] --> src/main.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | struct SinglyLinkedList { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `insert_beginning`, `insert_end`, `delete_node`, `search`, and `traverse` are never used [INFO] [stdout] --> src/main.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 12 | impl SinglyLinkedList { [INFO] [stdout] | ------------------------------------------------------------------ associated items in this implementation [INFO] [stdout] 13 | fn new() -> SinglyLinkedList { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | fn insert_beginning(&mut self, data: T) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn insert_end(&mut self, data: T) -> bool { //TODO test [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 68 | fn delete_node(&mut self, data: T) {//TODO test [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 109 | fn search(&mut self,data: T) -> Option { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | fn traverse(&mut self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `is_head` is never read [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 3 | struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 6 | is_head: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `delete_node` is never used [INFO] [stdout] --> src/main.rs:68:8 [INFO] [stdout] | [INFO] [stdout] 12 | impl SinglyLinkedList { [INFO] [stdout] | ------------------------------------------------------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 68 | fn delete_node(&mut self, data: T) {//TODO test [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "e0efbf1b03172327e0e7ea93991e93152d00cb16c3bd5fd7a13aed0951279d4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0efbf1b03172327e0e7ea93991e93152d00cb16c3bd5fd7a13aed0951279d4e", kill_on_drop: false }` [INFO] [stdout] e0efbf1b03172327e0e7ea93991e93152d00cb16c3bd5fd7a13aed0951279d4e