[INFO] fetching crate polars-arrow 0.15.1...
[INFO] checking polars-arrow-0.15.1 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate polars-arrow 0.15.1 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate polars-arrow 0.15.1 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polars-arrow 0.15.1
[INFO] finished tweaking crates.io crate polars-arrow 0.15.1
[INFO] tweaked toml for crates.io crate polars-arrow 0.15.1 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4eeb7d1d0f346dffadca07fd5fb46ca1f92ef1b6b76bba058a1dcfdb2023c75f
[INFO] running `Command { std: "docker" "start" "-a" "4eeb7d1d0f346dffadca07fd5fb46ca1f92ef1b6b76bba058a1dcfdb2023c75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eeb7d1d0f346dffadca07fd5fb46ca1f92ef1b6b76bba058a1dcfdb2023c75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eeb7d1d0f346dffadca07fd5fb46ca1f92ef1b6b76bba058a1dcfdb2023c75f", kill_on_drop: false }`
[INFO] [stdout] 4eeb7d1d0f346dffadca07fd5fb46ca1f92ef1b6b76bba058a1dcfdb2023c75f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ee518fe11c2d757215cd0521b48b3709520595a317899dd8343708e457ee7bd
[INFO] running `Command { std: "docker" "start" "-a" "4ee518fe11c2d757215cd0521b48b3709520595a317899dd8343708e457ee7bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hex v0.4.3
[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 num-rational v0.4.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling multiversion-macros v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking multiversion v0.6.1
[INFO] [stderr]     Checking arrow v5.1.0
[INFO] [stderr]     Checking polars-arrow v0.15.1 (/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 26.31s
[INFO] running `Command { std: "docker" "inspect" "4ee518fe11c2d757215cd0521b48b3709520595a317899dd8343708e457ee7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ee518fe11c2d757215cd0521b48b3709520595a317899dd8343708e457ee7bd", kill_on_drop: false }`
[INFO] [stdout] 4ee518fe11c2d757215cd0521b48b3709520595a317899dd8343708e457ee7bd