[INFO] fetching crate okasaki 0.1.0... [INFO] testing okasaki-0.1.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate okasaki 0.1.0 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate okasaki 0.1.0 [INFO] finished tweaking crates.io crate okasaki 0.1.0 [INFO] tweaked toml for crates.io crate okasaki 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate okasaki 0.1.0 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 30fcc3d106bc73370d5141ec99ebbaec0ab392ed419e15a75b0aff4b0e6fe3d5 [INFO] running `Command { std: "docker" "start" "-a" "30fcc3d106bc73370d5141ec99ebbaec0ab392ed419e15a75b0aff4b0e6fe3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "30fcc3d106bc73370d5141ec99ebbaec0ab392ed419e15a75b0aff4b0e6fe3d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30fcc3d106bc73370d5141ec99ebbaec0ab392ed419e15a75b0aff4b0e6fe3d5", kill_on_drop: false }` [INFO] [stdout] 30fcc3d106bc73370d5141ec99ebbaec0ab392ed419e15a75b0aff4b0e6fe3d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e2cd05833541dce13d33de271055ea8e3b6ef4f0f39b6697f0941e804c0fd5e3 [INFO] running `Command { std: "docker" "start" "-a" "e2cd05833541dce13d33de271055ea8e3b6ef4f0f39b6697f0941e804c0fd5e3", kill_on_drop: false }` [INFO] [stderr] Compiling okasaki v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `ListNode` is never constructed [INFO] [stdout] --> src/list.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct ListNode { [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 `len` is never used [INFO] [stdout] --> src/list.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl ListNode { [INFO] [stdout] | ------------------- method in this implementation [INFO] [stdout] 7 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/list.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `len` are never used [INFO] [stdout] --> src/list.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 23 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s [INFO] running `Command { std: "docker" "inspect" "e2cd05833541dce13d33de271055ea8e3b6ef4f0f39b6697f0941e804c0fd5e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2cd05833541dce13d33de271055ea8e3b6ef4f0f39b6697f0941e804c0fd5e3", kill_on_drop: false }` [INFO] [stdout] e2cd05833541dce13d33de271055ea8e3b6ef4f0f39b6697f0941e804c0fd5e3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c58957b30bf76d583706eae7ccc6d170aa2b23152014bcf97e3bf5e305c3594f [INFO] running `Command { std: "docker" "start" "-a" "c58957b30bf76d583706eae7ccc6d170aa2b23152014bcf97e3bf5e305c3594f", kill_on_drop: false }` [INFO] [stdout] warning: struct `ListNode` is never constructed [INFO] [stdout] --> src/list.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct ListNode { [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 `len` is never used [INFO] [stdout] --> src/list.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 6 | impl ListNode { [INFO] [stdout] | ------------------- method in this implementation [INFO] [stdout] 7 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/list.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `len` are never used [INFO] [stdout] --> src/list.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 23 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling okasaki v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/list.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct ListNode { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 2 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s [INFO] running `Command { std: "docker" "inspect" "c58957b30bf76d583706eae7ccc6d170aa2b23152014bcf97e3bf5e305c3594f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c58957b30bf76d583706eae7ccc6d170aa2b23152014bcf97e3bf5e305c3594f", kill_on_drop: false }` [INFO] [stdout] c58957b30bf76d583706eae7ccc6d170aa2b23152014bcf97e3bf5e305c3594f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2c1c882f9f3ff71a3ff46fa6c1e514e23d9a2ee2c9447ad4496c9ca644fe2524 [INFO] running `Command { std: "docker" "start" "-a" "2c1c882f9f3ff71a3ff46fa6c1e514e23d9a2ee2c9447ad4496c9ca644fe2524", kill_on_drop: false }` [INFO] [stderr] warning: struct `ListNode` is never constructed [INFO] [stdout] [INFO] [stderr] --> src/list.rs:1:8 [INFO] [stdout] running 2 tests [INFO] [stderr] | [INFO] [stderr] 1 | struct ListNode { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: method `len` is never used [INFO] [stderr] --> src/list.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 6 | impl ListNode { [INFO] [stderr] | ------------------- method in this implementation [INFO] [stderr] 7 | fn len(&self) -> usize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `List` is never constructed [INFO] [stderr] --> src/list.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | struct List { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new` and `len` are never used [INFO] [stderr] --> src/list.rs:23:12 [INFO] [stderr] | [INFO] [stderr] 22 | impl List { [INFO] [stderr] | --------------- associated items in this implementation [INFO] [stderr] 23 | pub fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 27 | pub fn len(&self) -> usize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `okasaki` (lib) generated 4 warnings [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> src/list.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 1 | struct ListNode { [INFO] [stderr] | -------- field in this struct [INFO] [stderr] 2 | value: T, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `okasaki` (lib test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/okasaki-447231422809143b) [INFO] [stdout] test list::tests::test_new_list ... ok [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests okasaki [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2c1c882f9f3ff71a3ff46fa6c1e514e23d9a2ee2c9447ad4496c9ca644fe2524", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c1c882f9f3ff71a3ff46fa6c1e514e23d9a2ee2c9447ad4496c9ca644fe2524", kill_on_drop: false }` [INFO] [stdout] 2c1c882f9f3ff71a3ff46fa6c1e514e23d9a2ee2c9447ad4496c9ca644fe2524