[INFO] fetching crate ai-utils 0.2.0...
[INFO] testing ai-utils-0.2.0 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate ai-utils 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate ai-utils 0.2.0
[INFO] finished tweaking crates.io crate ai-utils 0.2.0
[INFO] tweaked toml for crates.io crate ai-utils 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ai-utils 0.2.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/containerd/io.containerd.metadata.v1.bolt/meta.db: no space left on device
[INFO] testing ai-utils-0.2.0 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate ai-utils 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate ai-utils 0.2.0
[INFO] finished tweaking crates.io crate ai-utils 0.2.0
[INFO] tweaked toml for crates.io crate ai-utils 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ai-utils 0.2.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22be8380d7f99556be426a5e031a9a6e502d02fd3a7f3daa706e75b58f3b2669
[INFO] running `Command { std: "docker" "start" "-a" "22be8380d7f99556be426a5e031a9a6e502d02fd3a7f3daa706e75b58f3b2669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22be8380d7f99556be426a5e031a9a6e502d02fd3a7f3daa706e75b58f3b2669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22be8380d7f99556be426a5e031a9a6e502d02fd3a7f3daa706e75b58f3b2669", kill_on_drop: false }`
[INFO] [stdout] 22be8380d7f99556be426a5e031a9a6e502d02fd3a7f3daa706e75b58f3b2669
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 507952fb877aade8a82c786f32c70bcb2d7161b4b553faca937e53edda31f606
[INFO] running `Command { std: "docker" "start" "-a" "507952fb877aade8a82c786f32c70bcb2d7161b4b553faca937e53edda31f606", kill_on_drop: false }`
[INFO] [stderr]    Compiling ai-utils v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `map::*`
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use map::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReMap` is never used
[INFO] [stdout]  --> src/map.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait ReMap<K1: Eq + Hash, V1> {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReMap1` is never used
[INFO] [stdout]   --> src/map.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait ReMap1<K1: Eq + Hash + Deref + Copy, V1> {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "507952fb877aade8a82c786f32c70bcb2d7161b4b553faca937e53edda31f606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507952fb877aade8a82c786f32c70bcb2d7161b4b553faca937e53edda31f606", kill_on_drop: false }`
[INFO] [stdout] 507952fb877aade8a82c786f32c70bcb2d7161b4b553faca937e53edda31f606
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12362b52be4e0fb5b5782ce1828a10356988b305b77ee6a528467ab3867b9d79
[INFO] running `Command { std: "docker" "start" "-a" "12362b52be4e0fb5b5782ce1828a10356988b305b77ee6a528467ab3867b9d79", kill_on_drop: false }`
[INFO] [stderr]    Compiling ai-utils v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `map::*`
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use map::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "12362b52be4e0fb5b5782ce1828a10356988b305b77ee6a528467ab3867b9d79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12362b52be4e0fb5b5782ce1828a10356988b305b77ee6a528467ab3867b9d79", kill_on_drop: false }`
[INFO] [stdout] 12362b52be4e0fb5b5782ce1828a10356988b305b77ee6a528467ab3867b9d79
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5191a905909ccbb1b55c22ca812ebcd435a7653aad9154802ddf1e0ec63bf59b
[INFO] running `Command { std: "docker" "start" "-a" "5191a905909ccbb1b55c22ca812ebcd435a7653aad9154802ddf1e0ec63bf59b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `map::*`
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub use map::*;
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ai-utils` (lib test) generated 1 warning (run `cargo fix --lib -p ai-utils --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ai_utils-7e79d79f0a02d3d0)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test ranges::ranges_tests::distinct ... ok
[INFO] [stdout] test map::map_tests::map2 ... ok
[INFO] [stdout] test map::map_tests::map1 ... ok
[INFO] [stdout] test ranges::ranges_tests::group_by_aggr ... ok
[INFO] [stdout] test ranges::ranges_tests::to_vec ... ok
[INFO] [stdout] test ranges::ranges_tests::group_by ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5191a905909ccbb1b55c22ca812ebcd435a7653aad9154802ddf1e0ec63bf59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5191a905909ccbb1b55c22ca812ebcd435a7653aad9154802ddf1e0ec63bf59b", kill_on_drop: false }`
[INFO] [stdout] 5191a905909ccbb1b55c22ca812ebcd435a7653aad9154802ddf1e0ec63bf59b