[INFO] fetching crate parallel-iterator 0.1.6...
[INFO] testing parallel-iterator-0.1.6 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate parallel-iterator 0.1.6 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate parallel-iterator 0.1.6
[INFO] finished tweaking crates.io crate parallel-iterator 0.1.6
[INFO] tweaked toml for crates.io crate parallel-iterator 0.1.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate parallel-iterator 0.1.6 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] crate crates.io crate parallel-iterator 0.1.6 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 901b83df4817f48f7b9ef087bc3ca55cc9ad662bad12449fe7cbe2ce93267112
[INFO] running `Command { std: "docker" "start" "-a" "901b83df4817f48f7b9ef087bc3ca55cc9ad662bad12449fe7cbe2ce93267112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "901b83df4817f48f7b9ef087bc3ca55cc9ad662bad12449fe7cbe2ce93267112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "901b83df4817f48f7b9ef087bc3ca55cc9ad662bad12449fe7cbe2ce93267112", kill_on_drop: false }`
[INFO] [stdout] 901b83df4817f48f7b9ef087bc3ca55cc9ad662bad12449fe7cbe2ce93267112
[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=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] 1cfaea4ad32f0929d5dc0bcd5ddaf344a0607ad0fae42e939f817182d7c67c0b
[INFO] running `Command { std: "docker" "start" "-a" "1cfaea4ad32f0929d5dc0bcd5ddaf344a0607ad0fae42e939f817182d7c67c0b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling parallel-iterator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "1cfaea4ad32f0929d5dc0bcd5ddaf344a0607ad0fae42e939f817182d7c67c0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cfaea4ad32f0929d5dc0bcd5ddaf344a0607ad0fae42e939f817182d7c67c0b", kill_on_drop: false }`
[INFO] [stdout] 1cfaea4ad32f0929d5dc0bcd5ddaf344a0607ad0fae42e939f817182d7c67c0b
[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=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] fa1f41063224fa0cdfa25898a57f830244d221e864ce5de7c9d090e492e5ca63
[INFO] running `Command { std: "docker" "start" "-a" "fa1f41063224fa0cdfa25898a57f830244d221e864ce5de7c9d090e492e5ca63", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling parallel-iterator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> examples/example_2.rs:21:39
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for i in ParallelIterator::new(|| (0..MAX), xform_ctor) {
[INFO] [stdout]    |                                       ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -     for i in ParallelIterator::new(|| (0..MAX), xform_ctor) {
[INFO] [stdout] 21 +     for i in ParallelIterator::new(|| 0..MAX , xform_ctor) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/lib.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let prod_ctor = || (0u32..100);
[INFO] [stdout]     |                            ^         ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:63:11
[INFO] [stdout]     |
[INFO] [stdout]  63 | #![forbid(warnings)]
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 186 -         let prod_ctor = || (0u32..100);
[INFO] [stdout] 186 +         let prod_ctor = || 0u32..100;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> examples/example_1.rs:10:39
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for i in ParallelIterator::new(|| (0u32..100), || do_some_work) {
[INFO] [stdout]    |                                       ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     for i in ParallelIterator::new(|| (0u32..100), || do_some_work) {
[INFO] [stdout] 10 +     for i in ParallelIterator::new(|| 0u32..100 , || do_some_work) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "fa1f41063224fa0cdfa25898a57f830244d221e864ce5de7c9d090e492e5ca63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1f41063224fa0cdfa25898a57f830244d221e864ce5de7c9d090e492e5ca63", kill_on_drop: false }`
[INFO] [stdout] fa1f41063224fa0cdfa25898a57f830244d221e864ce5de7c9d090e492e5ca63
[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=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] 8dcc2764ce2d4758968b56b2964a671f3a6cd4243ea044aabb4d59f5366270c7
[INFO] running `Command { std: "docker" "start" "-a" "8dcc2764ce2d4758968b56b2964a671f3a6cd4243ea044aabb4d59f5366270c7", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/lib.rs:186:28
[INFO] [stderr]     |
[INFO] [stderr] 186 |         let prod_ctor = || (0u32..100);
[INFO] [stderr]     |                            ^         ^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:63:11
[INFO] [stderr]     |
[INFO] [stderr]  63 | #![forbid(warnings)]
[INFO] [stderr]     |           ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 186 -         let prod_ctor = || (0u32..100);
[INFO] [stderr] 186 +         let prod_ctor = || 0u32..100;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `parallel-iterator` (lib test) generated 1 warning (run `cargo fix --lib -p parallel-iterator --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> examples/example_2.rs:21:39
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in ParallelIterator::new(|| (0..MAX), xform_ctor) {
[INFO] [stderr]    |                                       ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 21 -     for i in ParallelIterator::new(|| (0..MAX), xform_ctor) {
[INFO] [stderr] 21 +     for i in ParallelIterator::new(|| 0..MAX , xform_ctor) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> examples/example_1.rs:10:39
[INFO] [stderr]    |
[INFO] [stderr] 10 |     for i in ParallelIterator::new(|| (0u32..100), || do_some_work) {
[INFO] [stderr]    |                                       ^         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 10 -     for i in ParallelIterator::new(|| (0u32..100), || do_some_work) {
[INFO] [stderr] 10 +     for i in ParallelIterator::new(|| 0u32..100 , || do_some_work) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `parallel-iterator` (example "example_2") generated 1 warning (run `cargo fix --example "example_2" -p parallel-iterator` to apply 1 suggestion)
[INFO] [stderr] warning: `parallel-iterator` (example "example_1") generated 1 warning (run `cargo fix --example "example_1" -p parallel-iterator` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/parallel_iterator-323190862e13cf77)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_parallel_vs_sequential ... ok
[INFO] [stderr]    Doc-tests parallel_iterator
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8dcc2764ce2d4758968b56b2964a671f3a6cd4243ea044aabb4d59f5366270c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dcc2764ce2d4758968b56b2964a671f3a6cd4243ea044aabb4d59f5366270c7", kill_on_drop: false }`
[INFO] [stdout] 8dcc2764ce2d4758968b56b2964a671f3a6cd4243ea044aabb4d59f5366270c7