[INFO] fetching crate parallel-iterator 0.1.6...
[INFO] testing parallel-iterator-0.1.6 against beta-2025-09-21 for beta-1.91-3
[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-2025-09-21
[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] 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0bf89e26945b23297175c1ba2e042d2da37136c9734f1e4d5a86f5e92919cdc
[INFO] running `Command { std: "docker" "start" "-a" "c0bf89e26945b23297175c1ba2e042d2da37136c9734f1e4d5a86f5e92919cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0bf89e26945b23297175c1ba2e042d2da37136c9734f1e4d5a86f5e92919cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0bf89e26945b23297175c1ba2e042d2da37136c9734f1e4d5a86f5e92919cdc", kill_on_drop: false }`
[INFO] [stdout] c0bf89e26945b23297175c1ba2e042d2da37136c9734f1e4d5a86f5e92919cdc
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e35a8a67bdbec9a381a331e7dc79e4876e1594fb0a3f314ddfb6c7993de996b
[INFO] running `Command { std: "docker" "start" "-a" "5e35a8a67bdbec9a381a331e7dc79e4876e1594fb0a3f314ddfb6c7993de996b", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parallel-iterator v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "5e35a8a67bdbec9a381a331e7dc79e4876e1594fb0a3f314ddfb6c7993de996b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e35a8a67bdbec9a381a331e7dc79e4876e1594fb0a3f314ddfb6c7993de996b", kill_on_drop: false }`
[INFO] [stdout] 5e35a8a67bdbec9a381a331e7dc79e4876e1594fb0a3f314ddfb6c7993de996b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad088018087188e91be15dcd5eacd4cb8935cc859b360b5c880dc5d7bf2a9fd0
[INFO] running `Command { std: "docker" "start" "-a" "ad088018087188e91be15dcd5eacd4cb8935cc859b360b5c880dc5d7bf2a9fd0", 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]    --> 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_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]   --> 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 1.05s
[INFO] running `Command { std: "docker" "inspect" "ad088018087188e91be15dcd5eacd4cb8935cc859b360b5c880dc5d7bf2a9fd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad088018087188e91be15dcd5eacd4cb8935cc859b360b5c880dc5d7bf2a9fd0", kill_on_drop: false }`
[INFO] [stdout] ad088018087188e91be15dcd5eacd4cb8935cc859b360b5c880dc5d7bf2a9fd0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc5c5924d0e78f43dcf4fb93c2890b8f731e43d4bdafc802be8ce88a533c0e50
[INFO] running `Command { std: "docker" "start" "-a" "bc5c5924d0e78f43dcf4fb93c2890b8f731e43d4bdafc802be8ce88a533c0e50", 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"` to apply 1 suggestion)
[INFO] [stderr] warning: `parallel-iterator` (example "example_1") generated 1 warning (run `cargo fix --example "example_1"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[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] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parallel_iterator
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.78s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc5c5924d0e78f43dcf4fb93c2890b8f731e43d4bdafc802be8ce88a533c0e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc5c5924d0e78f43dcf4fb93c2890b8f731e43d4bdafc802be8ce88a533c0e50", kill_on_drop: false }`
[INFO] [stdout] bc5c5924d0e78f43dcf4fb93c2890b8f731e43d4bdafc802be8ce88a533c0e50