[INFO] fetching crate surrogate-train 0.1.0...
[INFO] testing surrogate-train-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate surrogate-train 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate surrogate-train 0.1.0
[INFO] finished tweaking crates.io crate surrogate-train 0.1.0
[INFO] tweaked toml for crates.io crate surrogate-train 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate surrogate-train 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] [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] 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] 65ecb3b79a92c905e853438ee37464e2edc75f7b634c378e6ed23d00a42d9879
[INFO] running `Command { std: "docker" "start" "-a" "65ecb3b79a92c905e853438ee37464e2edc75f7b634c378e6ed23d00a42d9879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65ecb3b79a92c905e853438ee37464e2edc75f7b634c378e6ed23d00a42d9879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ecb3b79a92c905e853438ee37464e2edc75f7b634c378e6ed23d00a42d9879", kill_on_drop: false }`
[INFO] [stdout] 65ecb3b79a92c905e853438ee37464e2edc75f7b634c378e6ed23d00a42d9879
[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] 53790d22ba75d7b7c8c8b0e8da05a84e57be1024e25a435409ab9b92d3a3b1a6
[INFO] running `Command { std: "docker" "start" "-a" "53790d22ba75d7b7c8c8b0e8da05a84e57be1024e25a435409ab9b92d3a3b1a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling surrogate-train v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "53790d22ba75d7b7c8c8b0e8da05a84e57be1024e25a435409ab9b92d3a3b1a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53790d22ba75d7b7c8c8b0e8da05a84e57be1024e25a435409ab9b92d3a3b1a6", kill_on_drop: false }`
[INFO] [stdout] 53790d22ba75d7b7c8c8b0e8da05a84e57be1024e25a435409ab9b92d3a3b1a6
[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] 0059f2c7b6b347b0490dd9e44beb57474031c943f6bad35da3d984e642e0a98f
[INFO] running `Command { std: "docker" "start" "-a" "0059f2c7b6b347b0490dd9e44beb57474031c943f6bad35da3d984e642e0a98f", kill_on_drop: false }`
[INFO] [stderr]    Compiling surrogate-train v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "0059f2c7b6b347b0490dd9e44beb57474031c943f6bad35da3d984e642e0a98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0059f2c7b6b347b0490dd9e44beb57474031c943f6bad35da3d984e642e0a98f", kill_on_drop: false }`
[INFO] [stdout] 0059f2c7b6b347b0490dd9e44beb57474031c943f6bad35da3d984e642e0a98f
[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] d2fb095c41fad6edbbec7c518e0ca78dd9b635cd2b60d05c1e5d008c9be411dd
[INFO] running `Command { std: "docker" "start" "-a" "d2fb095c41fad6edbbec7c518e0ca78dd9b635cd2b60d05c1e5d008c9be411dd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/surrogate_train-01d7a35e11d99871)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests surrogate_train
[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" "d2fb095c41fad6edbbec7c518e0ca78dd9b635cd2b60d05c1e5d008c9be411dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2fb095c41fad6edbbec7c518e0ca78dd9b635cd2b60d05c1e5d008c9be411dd", kill_on_drop: false }`
[INFO] [stdout] d2fb095c41fad6edbbec7c518e0ca78dd9b635cd2b60d05c1e5d008c9be411dd