[INFO] fetching crate polars-io 0.12.1... [INFO] checking polars-io-0.12.1 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789 [INFO] extracting crate polars-io 0.12.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate polars-io 0.12.1 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate polars-io 0.12.1 [INFO] finished tweaking crates.io crate polars-io 0.12.1 [INFO] tweaked toml for crates.io crate polars-io 0.12.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 69cf89561f48a425ce41ea9d0fa636c4067b5eb33f3d6c80b9ba37dc0f652e28 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "69cf89561f48a425ce41ea9d0fa636c4067b5eb33f3d6c80b9ba37dc0f652e28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "69cf89561f48a425ce41ea9d0fa636c4067b5eb33f3d6c80b9ba37dc0f652e28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69cf89561f48a425ce41ea9d0fa636c4067b5eb33f3d6c80b9ba37dc0f652e28", kill_on_drop: false }` [INFO] [stdout] 69cf89561f48a425ce41ea9d0fa636c4067b5eb33f3d6c80b9ba37dc0f652e28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef243df3a6d4581a357192566ce2ce5922290cf4daf1af3f1e062ca6ea10fba5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ef243df3a6d4581a357192566ce2ce5922290cf4daf1af3f1e062ca6ea10fba5", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking ahash v0.4.7 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling anyhow v1.0.40 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking strum v0.20.0 [INFO] [stderr] Checking unsafe_unwrap v0.1.0 [INFO] [stderr] Checking fast-float v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.3.2 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking lock_api v0.4.3 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking crossbeam-utils v0.8.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking memmap2 v0.2.2 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling ahash v0.6.3 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking lexical-core v0.7.6 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking signal-hook v0.1.17 [INFO] [stderr] Checking crossterm v0.19.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rayon-core v1.9.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rayon v1.5.0 [INFO] [stderr] Checking lexical v5.2.2 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking num v0.3.1 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling strum_macros v0.20.1 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking flatbuffers v0.8.4 [INFO] [stderr] Checking comfy-table v1.6.0 [INFO] [stderr] Checking arrow v3.0.0 [INFO] [stderr] Checking polars-arrow v0.12.1 [INFO] [stderr] Checking polars-core v0.12.1 [INFO] [stderr] Checking polars-io v0.12.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stdout] --> src/csv_core/parser.rs:255:14 [INFO] [stdout] | [INFO] [stdout] 255 | dbg!((&buffers[0])); [INFO] [stdout] | ^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `finish_reader` [INFO] [stdout] --> src/lib.rs:81:15 [INFO] [stdout] | [INFO] [stdout] 81 | pub(crate) fn finish_reader( [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: function is never used: `finish_reader` [INFO] [stdout] --> src/lib.rs:81:15 [INFO] [stdout] | [INFO] [stdout] 81 | pub(crate) fn finish_reader( [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/csv_core/parser.rs:221:9 [INFO] [stdout] | [INFO] [stdout] 221 | dbg!(std::str::from_utf8(bytes)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 27s [INFO] running `Command { std: "docker" "inspect" "ef243df3a6d4581a357192566ce2ce5922290cf4daf1af3f1e062ca6ea10fba5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef243df3a6d4581a357192566ce2ce5922290cf4daf1af3f1e062ca6ea10fba5", kill_on_drop: false }` [INFO] [stdout] ef243df3a6d4581a357192566ce2ce5922290cf4daf1af3f1e062ca6ea10fba5