[INFO] cloning repository https://github.com/linde12/linkedlists-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/linde12/linkedlists-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinde12%2Flinkedlists-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinde12%2Flinkedlists-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 97bea22c89c64cdf53f521209538416e5f486724 [INFO] checking linde12/linkedlists-rs against master#be181dd75c83d72fcc95538e235768bc367b76b9 for pr-140208 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinde12%2Flinkedlists-rs" "/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/linde12/linkedlists-rs on toolchain be181dd75c83d72fcc95538e235768bc367b76b9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/linde12/linkedlists-rs [INFO] finished tweaking git repo https://github.com/linde12/linkedlists-rs [INFO] tweaked toml for git repo https://github.com/linde12/linkedlists-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/linde12/linkedlists-rs 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" "+be181dd75c83d72fcc95538e235768bc367b76b9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e4b0dbfdd4eb711b53812d63f5ce06196d8259ff29e4b54f14b491adff8e2ca8 [INFO] running `Command { std: "docker" "start" "-a" "e4b0dbfdd4eb711b53812d63f5ce06196d8259ff29e4b54f14b491adff8e2ca8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4b0dbfdd4eb711b53812d63f5ce06196d8259ff29e4b54f14b491adff8e2ca8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4b0dbfdd4eb711b53812d63f5ce06196d8259ff29e4b54f14b491adff8e2ca8", kill_on_drop: false }` [INFO] [stdout] e4b0dbfdd4eb711b53812d63f5ce06196d8259ff29e4b54f14b491adff8e2ca8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+be181dd75c83d72fcc95538e235768bc367b76b9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e22a7f6747af53284a62fe319440bd76e47ef727225bdfd037dd3b9338518060 [INFO] running `Command { std: "docker" "start" "-a" "e22a7f6747af53284a62fe319440bd76e47ef727225bdfd037dd3b9338518060", kill_on_drop: false }` [INFO] [stderr] Checking linkedlist v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Queue` is never constructed [INFO] [stdout] --> src/queue.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Queue { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Queue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, and `size` are never used [INFO] [stdout] --> src/queue.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Queue { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 11 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn push(&mut self, data: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/queue.rs:60:8 [INFO] [stdout] | [INFO] [stdout] 60 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/queue.rs:65:6 [INFO] [stdout] | [INFO] [stdout] 65 | type Link = Option>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `size`, `iter`, and `iter_mut` are never used [INFO] [stdout] --> src/stack.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl Stack { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 20 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn push(&mut self, data: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s [INFO] running `Command { std: "docker" "inspect" "e22a7f6747af53284a62fe319440bd76e47ef727225bdfd037dd3b9338518060", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e22a7f6747af53284a62fe319440bd76e47ef727225bdfd037dd3b9338518060", kill_on_drop: false }` [INFO] [stdout] e22a7f6747af53284a62fe319440bd76e47ef727225bdfd037dd3b9338518060