[INFO] fetching crate polars-io 0.35.4...
[INFO] checking polars-io-0.35.4 against master#e9271846294c4ee5bd7706df68180320c0b5ff20 for pr-119825
[INFO] extracting crate polars-io 0.35.4 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate polars-io 0.35.4 on toolchain e9271846294c4ee5bd7706df68180320c0b5ff20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polars-io 0.35.4
[INFO] finished tweaking crates.io crate polars-io 0.35.4
[INFO] tweaked toml for crates.io crate polars-io 0.35.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded foreign_vec v0.1.0
[INFO] [stderr]   Downloaded multiversion v0.7.3
[INFO] [stderr]   Downloaded argminmax v0.6.1
[INFO] [stderr]   Downloaded polars-error v0.35.4
[INFO] [stderr]   Downloaded streaming-decompression v0.1.2
[INFO] [stderr]   Downloaded polars-row v0.35.4
[INFO] [stderr]   Downloaded atoi_simd v0.15.6
[INFO] [stderr]   Downloaded planus v0.3.1
[INFO] [stderr]   Downloaded halfbrown v0.2.4
[INFO] [stderr]   Downloaded value-trait v0.8.0
[INFO] [stderr]   Downloaded polars-ops v0.35.4
[INFO] [stderr]   Downloaded polars-core v0.35.4
[INFO] [stderr]   Downloaded polars-time v0.35.4
[INFO] [stderr]   Downloaded object_store v0.8.0
[INFO] [stderr]   Downloaded simd-json v0.13.7
[INFO] [stderr]   Downloaded multiversion-macros v0.7.3
[INFO] [stderr]   Downloaded polars-arrow v0.35.4
[INFO] [stderr]   Downloaded memmap2 v0.7.1
[INFO] [stderr]   Downloaded polars-json v0.35.4
[INFO] [stderr]   Downloaded arrow-format v0.8.1
[INFO] [stderr]   Downloaded avro-schema v0.3.0
[INFO] [stderr]   Downloaded array-init-cursor v0.2.0
[INFO] [stderr]   Downloaded parquet-format-safe v0.2.4
[INFO] [stderr]   Downloaded now v0.1.3
[INFO] [stderr]   Downloaded itoap v1.0.1
[INFO] [stderr]   Downloaded target-features v0.1.5
[INFO] [stderr]   Downloaded polars-utils v0.35.4
[INFO] [stderr]   Downloaded streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded polars-parquet v0.35.4
[INFO] [stderr]   Downloaded libz-ng-sys v1.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e122df55e859d765e634d5ae22b25712018de079ef94d1db1e2c52fa280ec1f5
[INFO] running `Command { std: "docker" "start" "-a" "e122df55e859d765e634d5ae22b25712018de079ef94d1db1e2c52fa280ec1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e122df55e859d765e634d5ae22b25712018de079ef94d1db1e2c52fa280ec1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e122df55e859d765e634d5ae22b25712018de079ef94d1db1e2c52fa280ec1f5", kill_on_drop: false }`
[INFO] [stdout] e122df55e859d765e634d5ae22b25712018de079ef94d1db1e2c52fa280ec1f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e9271846294c4ee5bd7706df68180320c0b5ff20" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2301e8eed814b524111c49b02f0887bb309e895dcd15f5bb025a2d7824264c5
[INFO] running `Command { std: "docker" "start" "-a" "f2301e8eed814b524111c49b02f0887bb309e895dcd15f5bb025a2d7824264c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-features v0.1.5
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling polars-utils v0.35.4
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking ethnum v1.5.0
[INFO] [stderr]     Checking ahash v0.8.7
[INFO] [stderr]     Checking dyn-clone v1.0.16
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking atoi_simd v0.15.6
[INFO] [stderr]     Checking foreign_vec v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking streaming-iterator v0.1.9
[INFO] [stderr]    Compiling zstd-safe v7.0.0
[INFO] [stderr]     Checking zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]    Compiling polars-core v0.35.4
[INFO] [stderr]     Checking xxhash-rust v0.8.8
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking zstd v0.13.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling multiversion-macros v0.7.3
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking polars-error v0.35.4
[INFO] [stderr]     Checking multiversion v0.7.3
[INFO] [stderr]     Checking polars-arrow v0.35.4
[INFO] [stderr]     Checking polars-row v0.35.4
[INFO] [stderr]     Checking polars-io v0.35.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `create_df` is never used
[INFO] [stdout]   --> src/prelude.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(crate) fn create_df() -> DataFrame {
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "f2301e8eed814b524111c49b02f0887bb309e895dcd15f5bb025a2d7824264c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2301e8eed814b524111c49b02f0887bb309e895dcd15f5bb025a2d7824264c5", kill_on_drop: false }`
[INFO] [stdout] f2301e8eed814b524111c49b02f0887bb309e895dcd15f5bb025a2d7824264c5