[INFO] fetching crate d2_iterators_in_rust 0.1.0...
[INFO] testing d2_iterators_in_rust-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate d2_iterators_in_rust 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate d2_iterators_in_rust 0.1.0
[INFO] finished tweaking crates.io crate d2_iterators_in_rust 0.1.0
[INFO] tweaked toml for crates.io crate d2_iterators_in_rust 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate d2_iterators_in_rust 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] crate crates.io crate d2_iterators_in_rust 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a42f8bb944f317831d6fbd64db891cc049823364c937d968b24937dce29d99ee
[INFO] running `Command { std: "docker" "start" "-a" "a42f8bb944f317831d6fbd64db891cc049823364c937d968b24937dce29d99ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a42f8bb944f317831d6fbd64db891cc049823364c937d968b24937dce29d99ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a42f8bb944f317831d6fbd64db891cc049823364c937d968b24937dce29d99ee", kill_on_drop: false }`
[INFO] [stdout] a42f8bb944f317831d6fbd64db891cc049823364c937d968b24937dce29d99ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] eb6fa322a0bc46ebdf322c28790ebe42471276888f7dd524e28b56f5e34c36c8
[INFO] running `Command { std: "docker" "start" "-a" "eb6fa322a0bc46ebdf322c28790ebe42471276888f7dd524e28b56f5e34c36c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling d2_iterators_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `RangeIterator` is never constructed
[INFO] [stdout]  --> src/gen_range.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RangeIterator {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/gen_range.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl RangeIterator {
[INFO] [stdout]   | ------------------ associated function in this implementation
[INFO] [stdout] 8 |     pub fn new(start: i32, stop: i32, step: i32) -> RangeIterator {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SkipIterator` is never constructed
[INFO] [stdout]  --> src/combi.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct SkipIterator<I: Iterator> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IterCombi` is never used
[INFO] [stdout]   --> src/combi.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait IterCombi: Iterator + Sized {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "eb6fa322a0bc46ebdf322c28790ebe42471276888f7dd524e28b56f5e34c36c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb6fa322a0bc46ebdf322c28790ebe42471276888f7dd524e28b56f5e34c36c8", kill_on_drop: false }`
[INFO] [stdout] eb6fa322a0bc46ebdf322c28790ebe42471276888f7dd524e28b56f5e34c36c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8f66e7bfeefd55ba49067a99e7de483f213a107c8bcaa4e53e300329dd329d26
[INFO] running `Command { std: "docker" "start" "-a" "8f66e7bfeefd55ba49067a99e7de483f213a107c8bcaa4e53e300329dd329d26", kill_on_drop: false }`
[INFO] [stdout] warning: struct `RangeIterator` is never constructed
[INFO] [stdout]  --> src/gen_range.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct RangeIterator {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/gen_range.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl RangeIterator {
[INFO] [stdout]   | ------------------ associated function in this implementation
[INFO] [stdout] 8 |     pub fn new(start: i32, stop: i32, step: i32) -> RangeIterator {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SkipIterator` is never constructed
[INFO] [stdout]  --> src/combi.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct SkipIterator<I: Iterator> {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IterCombi` is never used
[INFO] [stdout]   --> src/combi.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait IterCombi: Iterator + Sized {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling d2_iterators_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/combi.rs:46:41
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let v: Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "8f66e7bfeefd55ba49067a99e7de483f213a107c8bcaa4e53e300329dd329d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f66e7bfeefd55ba49067a99e7de483f213a107c8bcaa4e53e300329dd329d26", kill_on_drop: false }`
[INFO] [stdout] 8f66e7bfeefd55ba49067a99e7de483f213a107c8bcaa4e53e300329dd329d26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1282df370fd058f340d4ea4f9fdb8cbf19838b8fde9611def501a8e1a1abe5e3
[INFO] running `Command { std: "docker" "start" "-a" "1282df370fd058f340d4ea4f9fdb8cbf19838b8fde9611def501a8e1a1abe5e3", kill_on_drop: false }`
[INFO] [stderr] warning: struct `RangeIterator` is never constructed
[INFO] [stderr]  --> src/gen_range.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct RangeIterator {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/gen_range.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl RangeIterator {
[INFO] [stderr]   | ------------------ associated function in this implementation
[INFO] [stderr] 8 |     pub fn new(start: i32, stop: i32, step: i32) -> RangeIterator {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SkipIterator` is never constructed
[INFO] [stderr]  --> src/combi.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct SkipIterator<I: Iterator> {
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `IterCombi` is never used
[INFO] [stderr]   --> src/combi.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub trait IterCombi: Iterator + Sized {
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `d2_iterators_in_rust` (lib) generated 4 warnings
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/combi.rs:46:41
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let v: Vec<&str> = s.split(" ").intersperse(",").collect();
[INFO] [stderr]    |                                         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `d2_iterators_in_rust` (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/d2_iterators-c37a65fab756aa94)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test gen_range::tests::it_works ... ok
[INFO] [stdout] test combi::test_skip::test_step_by ... ok
[INFO] [stdout] test tests::filter ... ok
[INFO] [stdout] test combi::test_skip::test_interleave ... ok
[INFO] [stdout] test tests::gen_test ... ok
[INFO] [stdout] test combi::test_skip::test_intersperse ... ok
[INFO] [stdout] test combi::test_skip::test_skip_half ... ok
[INFO] [stdout] test v4_intoiter::tests_company::test_into_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/d2_printout-0124cb82d56f96ca)
[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] [stderr]    Doc-tests d2_iterators
[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" "1282df370fd058f340d4ea4f9fdb8cbf19838b8fde9611def501a8e1a1abe5e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1282df370fd058f340d4ea4f9fdb8cbf19838b8fde9611def501a8e1a1abe5e3", kill_on_drop: false }`
[INFO] [stdout] 1282df370fd058f340d4ea4f9fdb8cbf19838b8fde9611def501a8e1a1abe5e3
