[INFO] fetching crate polars-arrow 0.14.5...
[INFO] checking polars-arrow-0.14.5 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate polars-arrow 0.14.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate polars-arrow 0.14.5 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polars-arrow 0.14.5
[INFO] finished tweaking crates.io crate polars-arrow 0.14.5
[INFO] tweaked toml for crates.io crate polars-arrow 0.14.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62ad187861246bcc1b963eb463c21ad38cbc107fce0ccbd6a418c0cde4630f90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "62ad187861246bcc1b963eb463c21ad38cbc107fce0ccbd6a418c0cde4630f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62ad187861246bcc1b963eb463c21ad38cbc107fce0ccbd6a418c0cde4630f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62ad187861246bcc1b963eb463c21ad38cbc107fce0ccbd6a418c0cde4630f90", kill_on_drop: false }`
[INFO] [stdout] 62ad187861246bcc1b963eb463c21ad38cbc107fce0ccbd6a418c0cde4630f90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1278697c87bf9d5bd0acb71bed93e1809edf94dae5d6eba7260983a3d58fdce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c1278697c87bf9d5bd0acb71bed93e1809edf94dae5d6eba7260983a3d58fdce", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling multiversion-macros v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking flatbuffers v0.8.4
[INFO] [stderr]     Checking multiversion v0.6.1
[INFO] [stderr]     Checking arrow v4.4.0
[INFO] [stderr]     Checking polars-arrow v0.14.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `arrow::array::Array`
[INFO] [stdout]    --> src/builder.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 285 |     use arrow::array::Array;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrow::datatypes::UInt32Type`
[INFO] [stdout]    --> src/builder.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     use arrow::datatypes::UInt32Type;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "c1278697c87bf9d5bd0acb71bed93e1809edf94dae5d6eba7260983a3d58fdce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1278697c87bf9d5bd0acb71bed93e1809edf94dae5d6eba7260983a3d58fdce", kill_on_drop: false }`
[INFO] [stdout] c1278697c87bf9d5bd0acb71bed93e1809edf94dae5d6eba7260983a3d58fdce