[INFO] fetching crate polars-io 0.52.0...
[INFO] checking polars-io-0.52.0 against try#ce3348c21531b911ca5aadbbbe7ad63a1bc4c382 for pr-149596
[INFO] extracting crate polars-io 0.52.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate polars-io 0.52.0
[INFO] finished tweaking crates.io crate polars-io 0.52.0
[INFO] tweaked toml for crates.io crate polars-io 0.52.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polars-io 0.52.0 on toolchain ce3348c21531b911ca5aadbbbe7ad63a1bc4c382
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ce3348c21531b911ca5aadbbbe7ad63a1bc4c382" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polars-io 0.52.0 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" "+ce3348c21531b911ca5aadbbbe7ad63a1bc4c382" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+ce3348c21531b911ca5aadbbbe7ad63a1bc4c382" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c70734393c3368d56b73f3a698f7e0ffccd46a6aab7f4626645e97152de0744d
[INFO] running `Command { std: "docker" "start" "-a" "c70734393c3368d56b73f3a698f7e0ffccd46a6aab7f4626645e97152de0744d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c70734393c3368d56b73f3a698f7e0ffccd46a6aab7f4626645e97152de0744d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c70734393c3368d56b73f3a698f7e0ffccd46a6aab7f4626645e97152de0744d", kill_on_drop: false }`
[INFO] [stdout] c70734393c3368d56b73f3a698f7e0ffccd46a6aab7f4626645e97152de0744d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+ce3348c21531b911ca5aadbbbe7ad63a1bc4c382" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 463076722de37098d33db51a80fc270be39e26d902fed825b62612c9722e1e6c
[INFO] running `Command { std: "docker" "start" "-a" "463076722de37098d33db51a80fc270be39e26d902fed825b62612c9722e1e6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
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[INFO] [stderr]     Checking polars-io v0.52.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PlPathRef`
[INFO] [stdout]   --> src/cloud/options.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 | use polars_utils::plpath::{CloudScheme, PlPathRef};
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CloudScheme`
[INFO] [stdout]  --> src/path_utils/mod.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | use polars_utils::plpath::{CloudScheme, PlPath, PlPathRef};
[INFO] [stdout]   |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BitmapBuilder`
[INFO] [stdout]  --> src/predicates.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use arrow::bitmap::{Bitmap, BitmapBuilder};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SpecializedColumnPredicate as S`
[INFO] [stdout]   --> src/predicates.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         use SpecializedColumnPredicate as S;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/shared.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrow::array::new_empty_array`
[INFO] [stdout]  --> src/shared.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use arrow::array::new_empty_array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::options::RowIndex`
[INFO] [stdout]   --> src/shared.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::options::RowIndex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PolarsError`
[INFO] [stdout]  --> src/utils/file.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use polars_error::{PolarsError, PolarsResult, feature_gated};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polars_utils::mmap::ensure_not_mapped`
[INFO] [stdout]   --> src/utils/file.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use polars_utils::mmap::ensure_not_mapped;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PlPathRef`
[INFO] [stdout]   --> src/cloud/options.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 | use polars_utils::plpath::{CloudScheme, PlPathRef};
[INFO] [stdout]    |                                         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CloudScheme`
[INFO] [stdout]  --> src/path_utils/mod.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | use polars_utils::plpath::{CloudScheme, PlPath, PlPathRef};
[INFO] [stdout]   |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BitmapBuilder`
[INFO] [stdout]  --> src/predicates.rs:4:29
[INFO] [stdout]   |
[INFO] [stdout] 4 | use arrow::bitmap::{Bitmap, BitmapBuilder};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SpecializedColumnPredicate as S`
[INFO] [stdout]   --> src/predicates.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         use SpecializedColumnPredicate as S;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/shared.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrow::array::new_empty_array`
[INFO] [stdout]  --> src/shared.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use arrow::array::new_empty_array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::options::RowIndex`
[INFO] [stdout]   --> src/shared.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::options::RowIndex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PolarsError`
[INFO] [stdout]  --> src/utils/file.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use polars_error::{PolarsError, PolarsResult, feature_gated};
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polars_utils::mmap::ensure_not_mapped`
[INFO] [stdout]   --> src/utils/file.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use polars_utils::mmap::ensure_not_mapped;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrow::array::Array`
[INFO] [stdout]  --> src/predicates.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use arrow::array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrow::array::Array`
[INFO] [stdout]  --> src/predicates.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use arrow::array::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `specialized`
[INFO] [stdout]   --> src/predicates.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         specialized: Option<SpecializedColumnPredicate>,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_specialized`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `specialized`
[INFO] [stdout]   --> src/predicates.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         specialized: Option<SpecializedColumnPredicate>,
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_specialized`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `extend` and `extend_from_slice` are never used
[INFO] [stdout]    --> src/path_utils/mod.rs:566:12
[INFO] [stdout]     |
[INFO] [stdout] 550 | /     impl<F> OutPaths<'_, F>
[INFO] [stdout] 551 | |     where
[INFO] [stdout] 552 | |         F: Fn(&PlPath) -> bool,
[INFO] [stdout]     | |_______________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 566 |           fn extend(&mut self, values: impl IntoIterator<Item = PlPath>) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 580 |           fn extend_from_slice(&mut self, values: &[PlPath]) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `column_name`, `dtype`, and `expr` are never read
[INFO] [stdout]   --> src/predicates.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct ColumnPredicateExpr {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 33 |     column_name: PlSmallStr,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 34 |     dtype: DataType,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     expr: Arc<dyn PhysicalIoExpr>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ColumnPredicateExpr` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_offsets` is never used
[INFO] [stdout]   --> src/utils/other.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn check_offsets(dfs: &[DataFrame]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `materialize_hive_partitions` is never used
[INFO] [stdout]   --> src/hive.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) fn materialize_hive_partitions<D>(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `extend` and `extend_from_slice` are never used
[INFO] [stdout]    --> src/path_utils/mod.rs:566:12
[INFO] [stdout]     |
[INFO] [stdout] 550 | /     impl<F> OutPaths<'_, F>
[INFO] [stdout] 551 | |     where
[INFO] [stdout] 552 | |         F: Fn(&PlPath) -> bool,
[INFO] [stdout]     | |_______________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 566 |           fn extend(&mut self, values: impl IntoIterator<Item = PlPath>) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 580 |           fn extend_from_slice(&mut self, values: &[PlPath]) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `column_name`, `dtype`, and `expr` are never read
[INFO] [stdout]   --> src/predicates.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct ColumnPredicateExpr {
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] 33 |     column_name: PlSmallStr,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 34 |     dtype: DataType,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     expr: Arc<dyn PhysicalIoExpr>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ColumnPredicateExpr` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_offsets` is never used
[INFO] [stdout]   --> src/utils/other.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn check_offsets(dfs: &[DataFrame]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `materialize_hive_partitions` is never used
[INFO] [stdout]   --> src/hive.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(crate) fn materialize_hive_partitions<D>(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.48s
[INFO] running `Command { std: "docker" "inspect" "463076722de37098d33db51a80fc270be39e26d902fed825b62612c9722e1e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "463076722de37098d33db51a80fc270be39e26d902fed825b62612c9722e1e6c", kill_on_drop: false }`
[INFO] [stdout] 463076722de37098d33db51a80fc270be39e26d902fed825b62612c9722e1e6c
