[INFO] fetching crate polars-row 0.35.4...
[INFO] checking polars-row-0.35.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate polars-row 0.35.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate polars-row 0.35.4 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polars-row 0.35.4
[INFO] finished tweaking crates.io crate polars-row 0.35.4
[INFO] tweaked toml for crates.io crate polars-row 0.35.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 60 packages
[INFO] [stderr]       Adding polars-arrow v0.35.4 (latest: v0.38.3)
[INFO] [stderr]       Adding polars-error v0.35.4 (latest: v0.38.3)
[INFO] [stderr]       Adding polars-utils v0.35.4 (latest: v0.38.3)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded foreign_vec v0.1.0
[INFO] [stderr]   Downloaded polars-error v0.35.4
[INFO] [stderr]   Downloaded multiversion v0.7.4
[INFO] [stderr]   Downloaded streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded atoi_simd v0.15.6
[INFO] [stderr]   Downloaded multiversion-macros v0.7.4
[INFO] [stderr]   Downloaded target-features v0.1.6
[INFO] [stderr]   Downloaded ethnum v1.5.0
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded polars-arrow v0.35.4
[INFO] [stderr]   Downloaded strength_reduce v0.2.4
[INFO] [stderr]   Downloaded polars-utils v0.35.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b91cc4f5156afcdea4b2c6d8c62370cf4e51af991b5f30412a8923546986aa1a
[INFO] running `Command { std: "docker" "start" "-a" "b91cc4f5156afcdea4b2c6d8c62370cf4e51af991b5f30412a8923546986aa1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b91cc4f5156afcdea4b2c6d8c62370cf4e51af991b5f30412a8923546986aa1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91cc4f5156afcdea4b2c6d8c62370cf4e51af991b5f30412a8923546986aa1a", kill_on_drop: false }`
[INFO] [stdout] b91cc4f5156afcdea4b2c6d8c62370cf4e51af991b5f30412a8923546986aa1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76247e31c3a6994a98a212c02c87525a987876bce667c84aa982b6a76349fb1f
[INFO] running `Command { std: "docker" "start" "-a" "76247e31c3a6994a98a212c02c87525a987876bce667c84aa982b6a76349fb1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-features v0.1.6
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling polars-utils v0.35.4
[INFO] [stderr]     Checking streaming-iterator v0.1.9
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking atoi_simd v0.15.6
[INFO] [stderr]     Checking dyn-clone v1.0.17
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking foreign_vec v0.1.0
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking ethnum v1.5.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling bytemuck_derive v1.6.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking polars-error v0.35.4
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]    Compiling multiversion-macros v0.7.4
[INFO] [stderr]     Checking multiversion v0.7.4
[INFO] [stderr]     Checking polars-arrow v0.35.4
[INFO] [stderr]     Checking polars-row v0.35.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Utf8Array` is imported redundantly
[INFO] [stdout]    --> src/encode.rs:307:36
[INFO] [stdout]     |
[INFO] [stdout] 307 |     use arrow::array::{Int32Array, Utf8Array};
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout] 308 |
[INFO] [stdout] 309 |     use super::*;
[INFO] [stdout]     |         -------- the item `Utf8Array` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_slice_inverted` is never used
[INFO] [stdout]   --> src/fixed.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) trait FromSlice {
[INFO] [stdout]    |                  --------- associated function in this trait
[INFO] [stdout] 14 |     fn from_slice(slice: &[u8]) -> Self;
[INFO] [stdout] 15 |     fn from_slice_inverted(slice: &[u8]) -> Self;
[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] [stdout] warning: associated function `from_slice_inverted` is never used
[INFO] [stdout]   --> src/fixed.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) trait FromSlice {
[INFO] [stdout]    |                  --------- associated function in this trait
[INFO] [stdout] 14 |     fn from_slice(slice: &[u8]) -> Self;
[INFO] [stdout] 15 |     fn from_slice_inverted(slice: &[u8]) -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.26s
[INFO] running `Command { std: "docker" "inspect" "76247e31c3a6994a98a212c02c87525a987876bce667c84aa982b6a76349fb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76247e31c3a6994a98a212c02c87525a987876bce667c84aa982b6a76349fb1f", kill_on_drop: false }`
[INFO] [stdout] 76247e31c3a6994a98a212c02c87525a987876bce667c84aa982b6a76349fb1f