[INFO] cloning repository https://github.com/pwbh/unsafe-linked-list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pwbh/unsafe-linked-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpwbh%2Funsafe-linked-list", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpwbh%2Funsafe-linked-list'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] aca4008a9e1247fd17736528570c51fc9ee69d64 [INFO] checking pwbh/unsafe-linked-list against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpwbh%2Funsafe-linked-list" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/pwbh/unsafe-linked-list [INFO] finished tweaking git repo https://github.com/pwbh/unsafe-linked-list [INFO] tweaked toml for git repo https://github.com/pwbh/unsafe-linked-list written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/pwbh/unsafe-linked-list on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/pwbh/unsafe-linked-list 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ad8f9c02150b73e9302f14493aa4ea35381bb5fe2dff73b5310ca0f59f031ffd [INFO] running `Command { std: "docker" "start" "-a" "ad8f9c02150b73e9302f14493aa4ea35381bb5fe2dff73b5310ca0f59f031ffd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ad8f9c02150b73e9302f14493aa4ea35381bb5fe2dff73b5310ca0f59f031ffd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad8f9c02150b73e9302f14493aa4ea35381bb5fe2dff73b5310ca0f59f031ffd", kill_on_drop: false }` [INFO] [stdout] ad8f9c02150b73e9302f14493aa4ea35381bb5fe2dff73b5310ca0f59f031ffd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0ea7ac341d9b5c3924dd7868015477a2a00ff86f2c376f531da04603efd22b7a [INFO] running `Command { std: "docker" "start" "-a" "0ea7ac341d9b5c3924dd7868015477a2a00ff86f2c376f531da04603efd22b7a", kill_on_drop: false }` [INFO] [stderr] Checking ok_unsafe_deque_self v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/main.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | 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: associated function `new` is never used [INFO] [stdout] --> src/main.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 11 | pub fn new(value: T) -> *mut Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/main.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push`, `pop`, `peek`, `peek_mut`, and `iter` are never used [INFO] [stdout] --> src/main.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 24 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 25 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn push(&mut self, value: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 69 | pub fn peek_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 73 | pub fn iter(&self) -> ListIter<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ListIter` is never constructed [INFO] [stdout] --> src/main.rs:88:8 [INFO] [stdout] | [INFO] [stdout] 88 | struct ListIter<'a, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s [INFO] running `Command { std: "docker" "inspect" "0ea7ac341d9b5c3924dd7868015477a2a00ff86f2c376f531da04603efd22b7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ea7ac341d9b5c3924dd7868015477a2a00ff86f2c376f531da04603efd22b7a", kill_on_drop: false }` [INFO] [stdout] 0ea7ac341d9b5c3924dd7868015477a2a00ff86f2c376f531da04603efd22b7a