[INFO] fetching crate test-engine 0.1.0...
[INFO] testing test-engine-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate test-engine 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate test-engine 0.1.0
[INFO] finished tweaking crates.io crate test-engine 0.1.0
[INFO] tweaked toml for crates.io crate test-engine 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate test-engine 0.1.0 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 test-engine 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 80e44862a31465deea52a0390fa5ddd0c4bd45f1644c181328b453a23b0a6927
[INFO] running `Command { std: "docker" "start" "-a" "80e44862a31465deea52a0390fa5ddd0c4bd45f1644c181328b453a23b0a6927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80e44862a31465deea52a0390fa5ddd0c4bd45f1644c181328b453a23b0a6927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e44862a31465deea52a0390fa5ddd0c4bd45f1644c181328b453a23b0a6927", kill_on_drop: false }`
[INFO] [stdout] 80e44862a31465deea52a0390fa5ddd0c4bd45f1644c181328b453a23b0a6927
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 166df8bf8a6456ff355344d448df8bae1163a790ff91e340bc6a64ff7a7b8edb
[INFO] running `Command { std: "docker" "start" "-a" "166df8bf8a6456ff355344d448df8bae1163a790ff91e340bc6a64ff7a7b8edb", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "166df8bf8a6456ff355344d448df8bae1163a790ff91e340bc6a64ff7a7b8edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "166df8bf8a6456ff355344d448df8bae1163a790ff91e340bc6a64ff7a7b8edb", kill_on_drop: false }`
[INFO] [stdout] 166df8bf8a6456ff355344d448df8bae1163a790ff91e340bc6a64ff7a7b8edb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 83e3ffe02668d267db7788202a2ca5d921bced73db6191ef8aa05b628fa4966d
[INFO] running `Command { std: "docker" "start" "-a" "83e3ffe02668d267db7788202a2ca5d921bced73db6191ef8aa05b628fa4966d", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "83e3ffe02668d267db7788202a2ca5d921bced73db6191ef8aa05b628fa4966d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83e3ffe02668d267db7788202a2ca5d921bced73db6191ef8aa05b628fa4966d", kill_on_drop: false }`
[INFO] [stdout] 83e3ffe02668d267db7788202a2ca5d921bced73db6191ef8aa05b628fa4966d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 42f626e1d6448119ce10b8c3a43fa20c8d2fc0ac436ff75d0f90d7c0ae366b3a
[INFO] running `Command { std: "docker" "start" "-a" "42f626e1d6448119ce10b8c3a43fa20c8d2fc0ac436ff75d0f90d7c0ae366b3a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/test_engine-ee95fc82dd320157)
[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" "42f626e1d6448119ce10b8c3a43fa20c8d2fc0ac436ff75d0f90d7c0ae366b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f626e1d6448119ce10b8c3a43fa20c8d2fc0ac436ff75d0f90d7c0ae366b3a", kill_on_drop: false }`
[INFO] [stdout] 42f626e1d6448119ce10b8c3a43fa20c8d2fc0ac436ff75d0f90d7c0ae366b3a