[INFO] fetching crate polars-io 0.33.0...
[INFO] testing polars-io-0.33.0 against master#23949593103d03a82c7ebc2e84434ce6c6edc561 for pr-115235
[INFO] extracting crate polars-io 0.33.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate polars-io 0.33.0 on toolchain 23949593103d03a82c7ebc2e84434ce6c6edc561
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polars-io 0.33.0
[INFO] finished tweaking crates.io crate polars-io 0.33.0
[INFO] tweaked toml for crates.io crate polars-io 0.33.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "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" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polars-utils v0.33.2
[INFO] [stderr]   Downloaded polars-time v0.33.2
[INFO] [stderr]   Downloaded polars-ops v0.33.2
[INFO] [stderr]   Downloaded polars-error v0.33.2
[INFO] [stderr]   Downloaded polars-row v0.33.2
[INFO] [stderr]   Downloaded polars-json v0.33.2
[INFO] [stderr]   Downloaded polars-arrow v0.33.2
[INFO] [stderr]   Downloaded avro-schema v0.3.0
[INFO] [stderr]   Downloaded itoap v1.0.1
[INFO] [stderr]   Downloaded polars-core v0.33.2
[INFO] [stderr]   Downloaded arrow2 v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44c4226b3335dab29050cacf80dda43db5cff892ab9872d94374e60261665bf0
[INFO] running `Command { std: "docker" "start" "-a" "44c4226b3335dab29050cacf80dda43db5cff892ab9872d94374e60261665bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44c4226b3335dab29050cacf80dda43db5cff892ab9872d94374e60261665bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44c4226b3335dab29050cacf80dda43db5cff892ab9872d94374e60261665bf0", kill_on_drop: false }`
[INFO] [stdout] 44c4226b3335dab29050cacf80dda43db5cff892ab9872d94374e60261665bf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a8c342cc0f03a5ec58dfa5bde68099da679cd3640f4551d33590671565e6bfc
[INFO] running `Command { std: "docker" "start" "-a" "3a8c342cc0f03a5ec58dfa5bde68099da679cd3640f4551d33590671565e6bfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling target-features v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling lexical-util v0.8.5
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.16
[INFO] [stderr]    Compiling ethnum v1.4.0
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling simdutf8 v0.1.4
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]    Compiling strength_reduce v0.2.4
[INFO] [stderr]    Compiling hash_hasher v2.0.3
[INFO] [stderr]    Compiling foreign_vec v0.1.0
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling polars-utils v0.33.2
[INFO] [stderr]    Compiling polars-arrow v0.33.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling polars-core v0.33.2
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling lexical-write-integer v0.8.5
[INFO] [stderr]    Compiling xxhash-rust v0.8.7
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling arrow2 v0.18.0
[INFO] [stderr]    Compiling lexical-write-float v0.8.5
[INFO] [stderr]    Compiling lexical-parse-float v0.8.5
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling flate2 v1.0.27
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling lexical-core v0.8.5
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling multiversion-macros v0.7.3
[INFO] [stderr]    Compiling multiversion v0.7.3
[INFO] [stderr]    Compiling polars-error v0.33.2
[INFO] [stderr]    Compiling polars-row v0.33.2
[INFO] [stderr]    Compiling polars-io v0.33.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `update_row_counts` is never used
[INFO] [stdout]   --> src/utils.rs:83:15
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub(crate) fn update_row_counts(dfs: &mut [(DataFrame, IdxSize)], offset: IdxSize) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_row_counts2` is never used
[INFO] [stdout]   --> src/utils.rs:97:15
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub(crate) fn update_row_counts2(dfs: &mut [DataFrame], offset: IdxSize) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `polars-core` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/23949593103d03a82c7ebc2e84434ce6c6edc561/bin/rustc --crate-name polars_core --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/polars-core-0.33.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=84144d3acd44749d -C extra-filename=-84144d3acd44749d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ahash=/opt/rustwide/target/debug/deps/libahash-4d9293567f43a9b3.rmeta --extern arrow=/opt/rustwide/target/debug/deps/libarrow2-46144fb0f73de2a7.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-b88bb863e9698a62.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-a8e170ceb4c54d63.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-14db4bc97d0c6382.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-c3a6965e56701215.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-99ee42936275eb64.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-8ddb0c67efdf005e.rmeta --extern polars_arrow=/opt/rustwide/target/debug/deps/libpolars_arrow-e85bba32f32626ed.rmeta --extern polars_error=/opt/rustwide/target/debug/deps/libpolars_error-065b240b48fb425e.rmeta --extern polars_row=/opt/rustwide/target/debug/deps/libpolars_row-870928edaed6203d.rmeta --extern polars_utils=/opt/rustwide/target/debug/deps/libpolars_utils-8b235b2db5e6d56f.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-c38fcb0c23c0662d.rmeta --extern smartstring=/opt/rustwide/target/debug/deps/libsmartstring-bec7d8e3d70bbff3.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-980c038f91563b79.rmeta --extern xxhash_rust=/opt/rustwide/target/debug/deps/libxxhash_rust-6848ae6d7b0a35ce.rmeta --cap-lints allow --cap-lints=forbid --cfg 'feature="nightly"'` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "3a8c342cc0f03a5ec58dfa5bde68099da679cd3640f4551d33590671565e6bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8c342cc0f03a5ec58dfa5bde68099da679cd3640f4551d33590671565e6bfc", kill_on_drop: false }`
[INFO] [stdout] 3a8c342cc0f03a5ec58dfa5bde68099da679cd3640f4551d33590671565e6bfc