[INFO] fetching crate concurrent-slice 0.1.0...
[INFO] testing concurrent-slice-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate concurrent-slice 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate concurrent-slice 0.1.0
[INFO] finished tweaking crates.io crate concurrent-slice 0.1.0
[INFO] tweaked toml for crates.io crate concurrent-slice 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate concurrent-slice 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42477e31d585546e492e700066c32cafecd9388649f5cd7ce171a1778441b176
[INFO] running `Command { std: "docker" "start" "-a" "42477e31d585546e492e700066c32cafecd9388649f5cd7ce171a1778441b176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42477e31d585546e492e700066c32cafecd9388649f5cd7ce171a1778441b176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42477e31d585546e492e700066c32cafecd9388649f5cd7ce171a1778441b176", kill_on_drop: false }`
[INFO] [stdout] 42477e31d585546e492e700066c32cafecd9388649f5cd7ce171a1778441b176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00c003f00c4bdd99720f42b637c343a85dc369c57237da96b218f9166a72fb81
[INFO] running `Command { std: "docker" "start" "-a" "00c003f00c4bdd99720f42b637c343a85dc369c57237da96b218f9166a72fb81", kill_on_drop: false }`
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling concurrent-slice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/common.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr::{self, NonNull},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "00c003f00c4bdd99720f42b637c343a85dc369c57237da96b218f9166a72fb81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00c003f00c4bdd99720f42b637c343a85dc369c57237da96b218f9166a72fb81", kill_on_drop: false }`
[INFO] [stdout] 00c003f00c4bdd99720f42b637c343a85dc369c57237da96b218f9166a72fb81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eccee58327f2480bccecd3233c7cb69634ee8288b60a9f8a781bcc48644c5c3e
[INFO] running `Command { std: "docker" "start" "-a" "eccee58327f2480bccecd3233c7cb69634ee8288b60a9f8a781bcc48644c5c3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/common.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr::{self, NonNull},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling concurrent-slice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/common.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     ptr::{self, NonNull},
[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 2.58s
[INFO] running `Command { std: "docker" "inspect" "eccee58327f2480bccecd3233c7cb69634ee8288b60a9f8a781bcc48644c5c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eccee58327f2480bccecd3233c7cb69634ee8288b60a9f8a781bcc48644c5c3e", kill_on_drop: false }`
[INFO] [stdout] eccee58327f2480bccecd3233c7cb69634ee8288b60a9f8a781bcc48644c5c3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2ddd1817a22573c8865081932d89a9de5f5a8e2e8e176f5c7af49eba8208e28
[INFO] running `Command { std: "docker" "start" "-a" "f2ddd1817a22573c8865081932d89a9de5f5a8e2e8e176f5c7af49eba8208e28", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/common.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ptr::{self, NonNull},
[INFO] [stderr]   |           ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `concurrent-slice` (lib) generated 1 warning (run `cargo fix --lib -p concurrent-slice` to apply 1 suggestion)
[INFO] [stderr] warning: `concurrent-slice` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/concurrent_slice-c9c38e266bccab69)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::chunks_of_chunk_test ... ok
[INFO] [stdout] test tests::concat_chunks_test ... ok
[INFO] [stdout] test tests::concurrent_chunks_test ... ok
[INFO] [stdout] test tests::split_at_test ... ok
[INFO] [stdout] test tests::owning_windows_test ... ok
[INFO] [stdout] test tests::empty_concurrent_chunks_test ... ok
[INFO] [stdout] test tests::merge_chunks_test ... ok
[INFO] [stdout] test tests::owning_iter_test ... ok
[INFO] [stderr]    Doc-tests concurrent_slice
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[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" "f2ddd1817a22573c8865081932d89a9de5f5a8e2e8e176f5c7af49eba8208e28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2ddd1817a22573c8865081932d89a9de5f5a8e2e8e176f5c7af49eba8208e28", kill_on_drop: false }`
[INFO] [stdout] f2ddd1817a22573c8865081932d89a9de5f5a8e2e8e176f5c7af49eba8208e28