[INFO] cloning repository https://github.com/adlsdztony/CourseHKU
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adlsdztony/CourseHKU" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadlsdztony%2FCourseHKU", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadlsdztony%2FCourseHKU'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f932598cb80e43b035d9ca5dae7eb8ce564d714
[INFO] checking adlsdztony/CourseHKU against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadlsdztony%2FCourseHKU" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adlsdztony/CourseHKU 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 git repo https://github.com/adlsdztony/CourseHKU
[INFO] finished tweaking git repo https://github.com/adlsdztony/CourseHKU
[INFO] tweaked toml for git repo https://github.com/adlsdztony/CourseHKU written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/adlsdztony/CourseHKU 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-init-cursor v0.2.0
[INFO] [stderr]   Downloaded polars-error v0.36.2
[INFO] [stderr]   Downloaded polars-utils v0.36.2
[INFO] [stderr]   Downloaded planus v0.3.1
[INFO] [stderr]   Downloaded arrow-format v0.8.1
[INFO] [stderr]   Downloaded multiversion v0.7.3
[INFO] [stderr]   Downloaded polars-time v0.36.2
[INFO] [stderr]   Downloaded now v0.1.3
[INFO] [stderr]   Downloaded atoi_simd v0.15.6
[INFO] [stderr]   Downloaded polars-sql v0.36.2
[INFO] [stderr]   Downloaded polars-pipe v0.36.2
[INFO] [stderr]   Downloaded polars-lazy v0.36.2
[INFO] [stderr]   Downloaded polars-plan v0.36.2
[INFO] [stderr]   Downloaded sqlparser v0.39.0
[INFO] [stderr]   Downloaded polars-arrow v0.36.2
[INFO] [stderr]   Downloaded polars-core v0.36.2
[INFO] [stderr]   Downloaded polars-io v0.36.2
[INFO] [stderr]   Downloaded ethnum v1.5.0
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded polars-ops v0.36.2
[INFO] [stderr]   Downloaded sysinfo v0.30.4
[INFO] [stderr]   Downloaded argminmax v0.6.1
[INFO] [stderr]   Downloaded polars-compute v0.36.2
[INFO] [stderr]   Downloaded dyn-clone v1.0.16
[INFO] [stderr]   Downloaded foreign_vec v0.1.0
[INFO] [stderr]   Downloaded multiversion-macros v0.7.3
[INFO] [stderr]   Downloaded target-features v0.1.5
[INFO] [stderr]   Downloaded polars-row v0.36.2
[INFO] [stderr]   Downloaded polars v0.36.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2a2ae45ff2b3e4b361193a98a36dd55a82ee0168e48b59c269a2abd6bb4cd767
[INFO] running `Command { std: "docker" "start" "-a" "2a2ae45ff2b3e4b361193a98a36dd55a82ee0168e48b59c269a2abd6bb4cd767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a2ae45ff2b3e4b361193a98a36dd55a82ee0168e48b59c269a2abd6bb4cd767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a2ae45ff2b3e4b361193a98a36dd55a82ee0168e48b59c269a2abd6bb4cd767", kill_on_drop: false }`
[INFO] [stdout] 2a2ae45ff2b3e4b361193a98a36dd55a82ee0168e48b59c269a2abd6bb4cd767
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d5ffd97faec0ec12bc5ed7a594b30824302ec07c82001e2c1863de75d17e6298
[INFO] running `Command { std: "docker" "start" "-a" "d5ffd97faec0ec12bc5ed7a594b30824302ec07c82001e2c1863de75d17e6298", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.74
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]    Compiling target-features v0.1.5
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling polars-utils v0.36.2
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]    Compiling polars-arrow v0.36.2
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking dyn-clone v1.0.16
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking streaming-iterator v0.1.9
[INFO] [stderr]     Checking ethnum v1.5.0
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking foreign_vec v0.1.0
[INFO] [stderr]     Checking atoi_simd v0.15.6
[INFO] [stderr]    Compiling polars-compute v0.36.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling polars-core v0.36.2
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling polars-ops v0.36.2
[INFO] [stderr]     Checking xxhash-rust v0.8.8
[INFO] [stderr]    Compiling polars-plan v0.36.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]    Compiling polars-lazy v0.36.2
[INFO] [stderr]    Compiling polars v0.36.2
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking crossbeam-deque v0.8.4
[INFO] [stderr]    Compiling syn v2.0.46
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking argminmax v0.6.1
[INFO] [stderr]     Checking atoi v2.0.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking now v0.1.3
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking thiserror v1.0.56
[INFO] [stderr]     Checking polars-error v0.36.2
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking comfy-table v7.1.0
[INFO] [stderr]    Compiling multiversion-macros v0.7.3
[INFO] [stderr]     Checking multiversion v0.7.3
[INFO] [stderr]     Checking polars-row v0.36.2
[INFO] [stderr]     Checking polars-time v0.36.2
[INFO] [stderr]     Checking polars-io v0.36.2
[INFO] [stderr]     Checking coursehku v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `col` is imported redundantly
[INFO] [stdout]  --> src/course.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use polars::{lazy::dsl::col, prelude::*};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^  ---------- the item `col` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `col` is imported redundantly
[INFO] [stdout]  --> src/course.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use polars::{lazy::dsl::col, prelude::*};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^  ---------- the item `col` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.52s
[INFO] running `Command { std: "docker" "inspect" "d5ffd97faec0ec12bc5ed7a594b30824302ec07c82001e2c1863de75d17e6298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5ffd97faec0ec12bc5ed7a594b30824302ec07c82001e2c1863de75d17e6298", kill_on_drop: false }`
[INFO] [stdout] d5ffd97faec0ec12bc5ed7a594b30824302ec07c82001e2c1863de75d17e6298