[INFO] fetching crate object-chain 0.1.3...
[INFO] testing object-chain-0.1.3 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate object-chain 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate object-chain 0.1.3
[INFO] finished tweaking crates.io crate object-chain 0.1.3
[INFO] tweaked toml for crates.io crate object-chain 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate object-chain 0.1.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7eff1eaa9a0db90f911a84d12dfe55897a8eda3fec0aa27623287111b011c4ae
[INFO] running `Command { std: "docker" "start" "-a" "7eff1eaa9a0db90f911a84d12dfe55897a8eda3fec0aa27623287111b011c4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eff1eaa9a0db90f911a84d12dfe55897a8eda3fec0aa27623287111b011c4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eff1eaa9a0db90f911a84d12dfe55897a8eda3fec0aa27623287111b011c4ae", kill_on_drop: false }`
[INFO] [stdout] 7eff1eaa9a0db90f911a84d12dfe55897a8eda3fec0aa27623287111b011c4ae
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a3d26efaf380e9b327263f77463c4ec8f561b12323deee42afe3eb6c7be89e3
[INFO] running `Command { std: "docker" "start" "-a" "3a3d26efaf380e9b327263f77463c4ec8f561b12323deee42afe3eb6c7be89e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling object-chain v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "3a3d26efaf380e9b327263f77463c4ec8f561b12323deee42afe3eb6c7be89e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3d26efaf380e9b327263f77463c4ec8f561b12323deee42afe3eb6c7be89e3", kill_on_drop: false }`
[INFO] [stdout] 3a3d26efaf380e9b327263f77463c4ec8f561b12323deee42afe3eb6c7be89e3
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65ebb01bf91b6473330cb2289aff197cac89fd58414772e61327ad2908dc495a
[INFO] running `Command { std: "docker" "start" "-a" "65ebb01bf91b6473330cb2289aff197cac89fd58414772e61327ad2908dc495a", kill_on_drop: false }`
[INFO] [stderr]    Compiling object-chain v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "65ebb01bf91b6473330cb2289aff197cac89fd58414772e61327ad2908dc495a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ebb01bf91b6473330cb2289aff197cac89fd58414772e61327ad2908dc495a", kill_on_drop: false }`
[INFO] [stdout] 65ebb01bf91b6473330cb2289aff197cac89fd58414772e61327ad2908dc495a
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0826982b0771c8c20da1f6ce029d746176050dab8b9a4de4c0c5967b6c987c77
[INFO] running `Command { std: "docker" "start" "-a" "0826982b0771c8c20da1f6ce029d746176050dab8b9a4de4c0c5967b6c987c77", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/object_chain-3ebaf704a10b2b7f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests object_chain
[INFO] [stdout] test test::test ... ok
[INFO] [stdout] test test::test_count ... ok
[INFO] [stdout] test test::test_accessing_elements_with_common_interface ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - chain (line 168) ... ok
[INFO] [stdout] test src/lib.rs - chain (line 158) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0826982b0771c8c20da1f6ce029d746176050dab8b9a4de4c0c5967b6c987c77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0826982b0771c8c20da1f6ce029d746176050dab8b9a4de4c0c5967b6c987c77", kill_on_drop: false }`
[INFO] [stdout] 0826982b0771c8c20da1f6ce029d746176050dab8b9a4de4c0c5967b6c987c77