[INFO] cloning repository https://github.com/mihneagogu/rust-lists [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mihneagogu/rust-lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihneagogu%2Frust-lists", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihneagogu%2Frust-lists'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1dfcf07ea3e324bac9728ea2ccedf13d2eea8dcf [INFO] checking mihneagogu/rust-lists against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihneagogu%2Frust-lists" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mihneagogu/rust-lists [INFO] finished tweaking git repo https://github.com/mihneagogu/rust-lists [INFO] tweaked toml for git repo https://github.com/mihneagogu/rust-lists written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mihneagogu/rust-lists on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mihneagogu/rust-lists 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking mihneagogu/rust-lists against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmihneagogu%2Frust-lists" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mihneagogu/rust-lists [INFO] finished tweaking git repo https://github.com/mihneagogu/rust-lists [INFO] tweaked toml for git repo https://github.com/mihneagogu/rust-lists written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mihneagogu/rust-lists on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mihneagogu/rust-lists 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a0f91bc82690fd79f51358179a89bf43f1606fd12cbe306aeacd709948d2fe07 [INFO] running `Command { std: "docker" "start" "-a" "a0f91bc82690fd79f51358179a89bf43f1606fd12cbe306aeacd709948d2fe07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a0f91bc82690fd79f51358179a89bf43f1606fd12cbe306aeacd709948d2fe07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0f91bc82690fd79f51358179a89bf43f1606fd12cbe306aeacd709948d2fe07", kill_on_drop: false }` [INFO] [stdout] a0f91bc82690fd79f51358179a89bf43f1606fd12cbe306aeacd709948d2fe07 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 77a6d70e6c60aa8fbf300ae0b2df59842e01eca808036a93adf3a04dd2daa682 [INFO] running `Command { std: "docker" "start" "-a" "77a6d70e6c60aa8fbf300ae0b2df59842e01eca808036a93adf3a04dd2daa682", kill_on_drop: false }` [INFO] [stderr] Checking lists v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `with` is never used [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 16 | fn with(item: T) -> Self { [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 `with` is never used [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 16 | fn with(item: T) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | mod lib; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: found module declaration for lib.rs [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | mod lib; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: lib.rs is the root of this crate's library target [INFO] [stdout] = help: to refer to it from other targets, use the library's name as the path [INFO] [stdout] = note: `#[warn(special_module_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `item` is never read [INFO] [stdout] --> src/lib.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 10 | struct Node { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 11 | item: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `with` is never used [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 16 | fn with(item: T) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IntoIter` is never constructed [INFO] [stdout] --> src/lib.rs:22:16 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct IntoIter(Stack); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> src/lib.rs:23:16 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Iter<'a, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterMut` is never constructed [INFO] [stdout] --> src/lib.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct IterMut<'a, T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `iter_mut`, `iter`, `into_iter`, `peek`, `peek_mut`, and `pop` are never used [INFO] [stdout] --> src/lib.rs:66:16 [INFO] [stdout] | [INFO] [stdout] 61 | impl<'a, T> Stack { [INFO] [stdout] | -------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 66 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 74 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | pub fn peek_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 94 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `with` is never used [INFO] [stdout] --> src/lib.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 16 | fn with(item: T) -> Self { [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 `IntoIter` is never constructed [INFO] [stdout] --> src/lib.rs:22:16 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct IntoIter(Stack); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterMut` is never constructed [INFO] [stdout] --> src/lib.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 26 | pub struct IterMut<'a, T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `iter_mut` and `into_iter` are never used [INFO] [stdout] --> src/lib.rs:66:16 [INFO] [stdout] | [INFO] [stdout] 61 | impl<'a, T> Stack { [INFO] [stdout] | -------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 66 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 74 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "77a6d70e6c60aa8fbf300ae0b2df59842e01eca808036a93adf3a04dd2daa682", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77a6d70e6c60aa8fbf300ae0b2df59842e01eca808036a93adf3a04dd2daa682", kill_on_drop: false }` [INFO] [stdout] 77a6d70e6c60aa8fbf300ae0b2df59842e01eca808036a93adf3a04dd2daa682