[INFO] fetching crate polars-arrow-format 0.2.1...
[INFO] building polars-arrow-format-0.2.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate polars-arrow-format 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate polars-arrow-format 0.2.1
[INFO] finished tweaking crates.io crate polars-arrow-format 0.2.1
[INFO] tweaked toml for crates.io crate polars-arrow-format 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polars-arrow-format 0.2.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polars-arrow-format 0.2.1 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e27066c512301b2e9fcc643707c9efcd86966aa2a93a884b8595492f2c4cbe1c
[INFO] running `Command { std: "docker" "start" "-a" "e27066c512301b2e9fcc643707c9efcd86966aa2a93a884b8595492f2c4cbe1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e27066c512301b2e9fcc643707c9efcd86966aa2a93a884b8595492f2c4cbe1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27066c512301b2e9fcc643707c9efcd86966aa2a93a884b8595492f2c4cbe1c", kill_on_drop: false }`
[INFO] [stdout] e27066c512301b2e9fcc643707c9efcd86966aa2a93a884b8595492f2c4cbe1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7ada18ee2d95fe8d6e9ca706dabf6cf54f318eef7cbb9f931f7621ad3c63a48
[INFO] running `Command { std: "docker" "start" "-a" "f7ada18ee2d95fe8d6e9ca706dabf6cf54f318eef7cbb9f931f7621ad3c63a48", kill_on_drop: false }`
[INFO] [stderr]    Compiling polars-arrow-format v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "f7ada18ee2d95fe8d6e9ca706dabf6cf54f318eef7cbb9f931f7621ad3c63a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ada18ee2d95fe8d6e9ca706dabf6cf54f318eef7cbb9f931f7621ad3c63a48", kill_on_drop: false }`
[INFO] [stdout] f7ada18ee2d95fe8d6e9ca706dabf6cf54f318eef7cbb9f931f7621ad3c63a48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fa73dfdbe94f33187a0021c6ca5b8c1cc3d1ba194e64807849a2f8b21419462
[INFO] running `Command { std: "docker" "start" "-a" "1fa73dfdbe94f33187a0021c6ca5b8c1cc3d1ba194e64807849a2f8b21419462", kill_on_drop: false }`
[INFO] [stderr]    Compiling polars-arrow-format v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "1fa73dfdbe94f33187a0021c6ca5b8c1cc3d1ba194e64807849a2f8b21419462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa73dfdbe94f33187a0021c6ca5b8c1cc3d1ba194e64807849a2f8b21419462", kill_on_drop: false }`
[INFO] [stdout] 1fa73dfdbe94f33187a0021c6ca5b8c1cc3d1ba194e64807849a2f8b21419462