[INFO] fetching crate skipfield 0.1.0-alpha...
[INFO] testing skipfield-0.1.0-alpha against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate skipfield 0.1.0-alpha into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate skipfield 0.1.0-alpha
[INFO] finished tweaking crates.io crate skipfield 0.1.0-alpha
[INFO] tweaked toml for crates.io crate skipfield 0.1.0-alpha written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate skipfield 0.1.0-alpha 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ec79b24bb8fddbd5820dbcb5af28c042f72e927ae4953f6af3b37f3ca0dd9ded
[INFO] running `Command { std: "docker" "start" "-a" "ec79b24bb8fddbd5820dbcb5af28c042f72e927ae4953f6af3b37f3ca0dd9ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec79b24bb8fddbd5820dbcb5af28c042f72e927ae4953f6af3b37f3ca0dd9ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec79b24bb8fddbd5820dbcb5af28c042f72e927ae4953f6af3b37f3ca0dd9ded", kill_on_drop: false }`
[INFO] [stdout] ec79b24bb8fddbd5820dbcb5af28c042f72e927ae4953f6af3b37f3ca0dd9ded
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f0f9384f67207497f52cd6adf354518d5adfc4b1f2c28689a1ebde2ac519e5e2
[INFO] running `Command { std: "docker" "start" "-a" "f0f9384f67207497f52cd6adf354518d5adfc4b1f2c28689a1ebde2ac519e5e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling skipfield v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "f0f9384f67207497f52cd6adf354518d5adfc4b1f2c28689a1ebde2ac519e5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f9384f67207497f52cd6adf354518d5adfc4b1f2c28689a1ebde2ac519e5e2", kill_on_drop: false }`
[INFO] [stdout] f0f9384f67207497f52cd6adf354518d5adfc4b1f2c28689a1ebde2ac519e5e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c0907faf0b5f97d88e92a66806d2203a86148ceb69522e4e7bcec15e27eff709
[INFO] running `Command { std: "docker" "start" "-a" "c0907faf0b5f97d88e92a66806d2203a86148ceb69522e4e7bcec15e27eff709", kill_on_drop: false }`
[INFO] [stderr]    Compiling skipfield v0.1.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "c0907faf0b5f97d88e92a66806d2203a86148ceb69522e4e7bcec15e27eff709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0907faf0b5f97d88e92a66806d2203a86148ceb69522e4e7bcec15e27eff709", kill_on_drop: false }`
[INFO] [stdout] c0907faf0b5f97d88e92a66806d2203a86148ceb69522e4e7bcec15e27eff709
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f9762931661f436cdd0953665189d56dc3467b51f45b47bba312b902d6d9d007
[INFO] running `Command { std: "docker" "start" "-a" "f9762931661f436cdd0953665189d56dc3467b51f45b47bba312b902d6d9d007", 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/skipfield-03f4079f797e3cff)
[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 skipfield
[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" "f9762931661f436cdd0953665189d56dc3467b51f45b47bba312b902d6d9d007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9762931661f436cdd0953665189d56dc3467b51f45b47bba312b902d6d9d007", kill_on_drop: false }`
[INFO] [stdout] f9762931661f436cdd0953665189d56dc3467b51f45b47bba312b902d6d9d007