[INFO] fetching crate shuttlings 0.1.0...
[INFO] testing shuttlings-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate shuttlings 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate shuttlings 0.1.0
[INFO] finished tweaking crates.io crate shuttlings 0.1.0
[INFO] tweaked toml for crates.io crate shuttlings 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shuttlings 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] 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] 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-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] ab9ab2c38d1e45e98c9114ace386dcccfc7c4f1b85cd095d9d2429e73026492d
[INFO] running `Command { std: "docker" "start" "-a" "ab9ab2c38d1e45e98c9114ace386dcccfc7c4f1b85cd095d9d2429e73026492d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab9ab2c38d1e45e98c9114ace386dcccfc7c4f1b85cd095d9d2429e73026492d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9ab2c38d1e45e98c9114ace386dcccfc7c4f1b85cd095d9d2429e73026492d", kill_on_drop: false }`
[INFO] [stdout] ab9ab2c38d1e45e98c9114ace386dcccfc7c4f1b85cd095d9d2429e73026492d
[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] d903ee1f721ddeba5be93733efdec88201d0e5ac35c3c060cc7ec059298a33a8
[INFO] running `Command { std: "docker" "start" "-a" "d903ee1f721ddeba5be93733efdec88201d0e5ac35c3c060cc7ec059298a33a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling shuttlings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "d903ee1f721ddeba5be93733efdec88201d0e5ac35c3c060cc7ec059298a33a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d903ee1f721ddeba5be93733efdec88201d0e5ac35c3c060cc7ec059298a33a8", kill_on_drop: false }`
[INFO] [stdout] d903ee1f721ddeba5be93733efdec88201d0e5ac35c3c060cc7ec059298a33a8
[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] 70a5626e551ea03607fd2a5adf6db61037d0cbe9e013da9d88148d2d53efeb47
[INFO] running `Command { std: "docker" "start" "-a" "70a5626e551ea03607fd2a5adf6db61037d0cbe9e013da9d88148d2d53efeb47", kill_on_drop: false }`
[INFO] [stderr]    Compiling shuttlings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "70a5626e551ea03607fd2a5adf6db61037d0cbe9e013da9d88148d2d53efeb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a5626e551ea03607fd2a5adf6db61037d0cbe9e013da9d88148d2d53efeb47", kill_on_drop: false }`
[INFO] [stdout] 70a5626e551ea03607fd2a5adf6db61037d0cbe9e013da9d88148d2d53efeb47
[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] 2ffef0591169b5b8a0294ac49418adf8a2ffdd2e69d2904f5acb8bbf59d0bdfe
[INFO] running `Command { std: "docker" "start" "-a" "2ffef0591169b5b8a0294ac49418adf8a2ffdd2e69d2904f5acb8bbf59d0bdfe", 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/shuttlings-03061f77f2e9ad0c)
[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 shuttlings
[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" "2ffef0591169b5b8a0294ac49418adf8a2ffdd2e69d2904f5acb8bbf59d0bdfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ffef0591169b5b8a0294ac49418adf8a2ffdd2e69d2904f5acb8bbf59d0bdfe", kill_on_drop: false }`
[INFO] [stdout] 2ffef0591169b5b8a0294ac49418adf8a2ffdd2e69d2904f5acb8bbf59d0bdfe