[INFO] cloning repository https://github.com/golnarmordadi/rust_dependency_chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/golnarmordadi/rust_dependency_chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolnarmordadi%2Frust_dependency_chain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolnarmordadi%2Frust_dependency_chain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7bcbab17e188998d33875a76f59c93fdbbbde186
[INFO] testing golnarmordadi/rust_dependency_chain against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolnarmordadi%2Frust_dependency_chain" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/golnarmordadi/rust_dependency_chain
[INFO] finished tweaking git repo https://github.com/golnarmordadi/rust_dependency_chain
[INFO] tweaked toml for git repo https://github.com/golnarmordadi/rust_dependency_chain written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/golnarmordadi/rust_dependency_chain 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] crate git repo https://github.com/golnarmordadi/rust_dependency_chain 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c3c3b4307cf925ab5139783a53bf9b6b31be32d9946e34c22985a1c847b8a1bf
[INFO] running `Command { std: "docker" "start" "-a" "c3c3b4307cf925ab5139783a53bf9b6b31be32d9946e34c22985a1c847b8a1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3c3b4307cf925ab5139783a53bf9b6b31be32d9946e34c22985a1c847b8a1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c3b4307cf925ab5139783a53bf9b6b31be32d9946e34c22985a1c847b8a1bf", kill_on_drop: false }`
[INFO] [stdout] c3c3b4307cf925ab5139783a53bf9b6b31be32d9946e34c22985a1c847b8a1bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5e5b41d1d0930bc80d3e0cfcd97cb4bab73e07de60a03e6573536486d8ade94f
[INFO] running `Command { std: "docker" "start" "-a" "5e5b41d1d0930bc80d3e0cfcd97cb4bab73e07de60a03e6573536486d8ade94f", kill_on_drop: false }`
[INFO] [stderr]    Compiling dependency_chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "5e5b41d1d0930bc80d3e0cfcd97cb4bab73e07de60a03e6573536486d8ade94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5b41d1d0930bc80d3e0cfcd97cb4bab73e07de60a03e6573536486d8ade94f", kill_on_drop: false }`
[INFO] [stdout] 5e5b41d1d0930bc80d3e0cfcd97cb4bab73e07de60a03e6573536486d8ade94f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2aea1eaf29667732eae20dd445f0837d2fa66711784816618f4e6dcf51e95f43
[INFO] running `Command { std: "docker" "start" "-a" "2aea1eaf29667732eae20dd445f0837d2fa66711784816618f4e6dcf51e95f43", kill_on_drop: false }`
[INFO] [stderr]    Compiling dependency_chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/main.rs:144:24
[INFO] [stdout]     |
[INFO] [stdout] 144 |             .and_then(|res| task2(40))
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "2aea1eaf29667732eae20dd445f0837d2fa66711784816618f4e6dcf51e95f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aea1eaf29667732eae20dd445f0837d2fa66711784816618f4e6dcf51e95f43", kill_on_drop: false }`
[INFO] [stdout] 2aea1eaf29667732eae20dd445f0837d2fa66711784816618f4e6dcf51e95f43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 64a0da61d618738fae8ebf0f0053c58bbcee2efcabe3b59034851cfb3f72d0dd
[INFO] running `Command { std: "docker" "start" "-a" "64a0da61d618738fae8ebf0f0053c58bbcee2efcabe3b59034851cfb3f72d0dd", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/main.rs:144:24
[INFO] [stderr]     |
[INFO] [stderr] 144 |             .and_then(|res| task2(40))
[INFO] [stderr]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dependency_chain` (bin "dependency_chain" test) generated 1 warning (run `cargo fix --bin "dependency_chain" -p dependency_chain --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dependency_chain-28e2dc53b842c484)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_full_chain_failure_at_task2 ... ok
[INFO] [stdout] test tests::test_task2_failure ... ok
[INFO] [stdout] test tests::test_task3 ... ok
[INFO] [stdout] test tests::test_task4 ... ok
[INFO] [stdout] test tests::test_task4_failure ... ok
[INFO] [stdout] test tests::test_full_chain_success ... ok
[INFO] [stdout] test tests::test_task1 ... ok
[INFO] [stdout] test tests::test_task3_failure ... ok
[INFO] [stdout] test tests::test_task2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "64a0da61d618738fae8ebf0f0053c58bbcee2efcabe3b59034851cfb3f72d0dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64a0da61d618738fae8ebf0f0053c58bbcee2efcabe3b59034851cfb3f72d0dd", kill_on_drop: false }`
[INFO] [stdout] 64a0da61d618738fae8ebf0f0053c58bbcee2efcabe3b59034851cfb3f72d0dd
