[INFO] fetching crate polars-mem-engine 0.52.0...
[INFO] checking polars-mem-engine-0.52.0 against try#ce3348c21531b911ca5aadbbbe7ad63a1bc4c382 for pr-149596
[INFO] extracting crate polars-mem-engine 0.52.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate polars-mem-engine 0.52.0
[INFO] finished tweaking crates.io crate polars-mem-engine 0.52.0
[INFO] tweaked toml for crates.io crate polars-mem-engine 0.52.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polars-mem-engine 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-mem-engine 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8d331f21294c125f4cd713528cf6cd20ed7c27b414d8eb826fbfd2bfc46db804
[INFO] running `Command { std: "docker" "start" "-a" "8d331f21294c125f4cd713528cf6cd20ed7c27b414d8eb826fbfd2bfc46db804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d331f21294c125f4cd713528cf6cd20ed7c27b414d8eb826fbfd2bfc46db804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d331f21294c125f4cd713528cf6cd20ed7c27b414d8eb826fbfd2bfc46db804", kill_on_drop: false }`
[INFO] [stdout] 8d331f21294c125f4cd713528cf6cd20ed7c27b414d8eb826fbfd2bfc46db804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 85598d1862b41e775b7771b2c800915f301a9b79cabacf901e66345a45d86ae9
[INFO] running `Command { std: "docker" "start" "-a" "85598d1862b41e775b7771b2c800915f301a9b79cabacf901e66345a45d86ae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.2.28
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]    Compiling polars-utils v0.52.0
[INFO] [stderr]     Checking raw-cpuid v11.5.0
[INFO] [stderr]     Checking rayon v1.10.0
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[INFO] [stderr]    Compiling typenum v1.18.0
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[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking aho-corasick v1.1.3
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[INFO] [stderr]    Compiling generic-array v0.14.7
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[INFO] [stderr]    Compiling polars-compute v0.52.0
[INFO] [stderr]     Checking boxcar v0.2.13
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[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]     Checking percent-encoding v2.3.1
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[INFO] [stderr]    Compiling polars-expr v0.52.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling psm v0.1.26
[INFO] [stderr]    Compiling stacker v0.1.21
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[INFO] [stderr]    Compiling parse-zoneinfo v0.3.1
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[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]    Compiling strum_macros v0.27.1
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[INFO] [stdout] warning: unused import: `std::io::BufWriter`
[INFO] [stdout]    --> src/planner/lp.rs:316:33
[INFO] [stdout]     |
[INFO] [stdout] 316 | ...                   use std::io::BufWriter;
[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: `std::io::BufWriter`
[INFO] [stdout]    --> src/planner/lp.rs:316:33
[INFO] [stdout]     |
[INFO] [stdout] 316 | ...                   use std::io::BufWriter;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/planner/lp.rs:384:29
[INFO] [stdout]     |
[INFO] [stdout] 317 | / ...                   match &file_type {
[INFO] [stdout] 318 | | ...                       #[cfg(feature = "parquet")]
[INFO] [stdout] 319 | | ...                       FileType::Parquet(options) => {
[INFO] [stdout] 320 | | ...                           use polars_io::parquet::write::ParquetWriter;
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | | ...                       _ => panic!("enable filetype feature"),
[INFO] [stdout] 382 | | ...                   }
[INFO] [stdout]     | |_______________________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 383 |   ...
[INFO] [stdout] 384 |   ...                   file.sync_on_close(sink_options.sync_on_close)?;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/planner/lp.rs:384:29
[INFO] [stdout]     |
[INFO] [stdout] 317 | / ...                   match &file_type {
[INFO] [stdout] 318 | | ...                       #[cfg(feature = "parquet")]
[INFO] [stdout] 319 | | ...                       FileType::Parquet(options) => {
[INFO] [stdout] 320 | | ...                           use polars_io::parquet::write::ParquetWriter;
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | | ...                       _ => panic!("enable filetype feature"),
[INFO] [stdout] 382 | | ...                   }
[INFO] [stdout]     | |_______________________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 383 |   ...
[INFO] [stdout] 384 |   ...                   file.sync_on_close(sink_options.sync_on_close)?;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/planner/lp.rs:311:43
[INFO] [stdout]     |
[INFO] [stdout] 311 |                         f: Box::new(move |mut df, _state| {
[INFO] [stdout]     |                                           ----^^
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/planner/lp.rs:475:17
[INFO] [stdout]     |
[INFO] [stdout] 475 |             let mut create_skip_batch_predicate = unified_scan_args.table_statistics.is_some();
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `df`
[INFO] [stdout]    --> src/planner/lp.rs:311:43
[INFO] [stdout]     |
[INFO] [stdout] 311 |                         f: Box::new(move |mut df, _state| {
[INFO] [stdout]     |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_df`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/planner/lp.rs:314:33
[INFO] [stdout]     |
[INFO] [stdout] 314 | ...                   let writer = &mut *file;
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/planner/lp.rs:311:43
[INFO] [stdout]     |
[INFO] [stdout] 311 |                         f: Box::new(move |mut df, _state| {
[INFO] [stdout]     |                                           ----^^
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/planner/lp.rs:475:17
[INFO] [stdout]     |
[INFO] [stdout] 475 |             let mut create_skip_batch_predicate = unified_scan_args.table_statistics.is_some();
[INFO] [stdout]     |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `df`
[INFO] [stdout]    --> src/planner/lp.rs:311:43
[INFO] [stdout]     |
[INFO] [stdout] 311 |                         f: Box::new(move |mut df, _state| {
[INFO] [stdout]     |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_df`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/planner/lp.rs:314:33
[INFO] [stdout]     |
[INFO] [stdout] 314 | ...                   let writer = &mut *file;
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_new_streaming_scan` is never read
[INFO] [stdout]   --> src/executors/cache.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct CachePrefill {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     is_new_streaming_scan: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort_and_groups` is never used
[INFO] [stdout]   --> src/executors/group_by_rolling.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(super) fn sort_and_groups(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_new_streaming_scan` is never read
[INFO] [stdout]   --> src/executors/cache.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct CachePrefill {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     is_new_streaming_scan: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort_and_groups` is never used
[INFO] [stdout]   --> src/executors/group_by_rolling.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub(super) fn sort_and_groups(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.45s
[INFO] running `Command { std: "docker" "inspect" "85598d1862b41e775b7771b2c800915f301a9b79cabacf901e66345a45d86ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85598d1862b41e775b7771b2c800915f301a9b79cabacf901e66345a45d86ae9", kill_on_drop: false }`
[INFO] [stdout] 85598d1862b41e775b7771b2c800915f301a9b79cabacf901e66345a45d86ae9
