[INFO] fetching crate polars 0.15.0...
[INFO] testing polars-0.15.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate polars 0.15.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate polars 0.15.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polars 0.15.0
[INFO] finished tweaking crates.io crate polars 0.15.0
[INFO] tweaked toml for crates.io crate polars 0.15.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polars-lazy v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6abdacc31580b1aaa2f996a56578cf26af52a10f525614deeb9d8b80f4941ba7
[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" "6abdacc31580b1aaa2f996a56578cf26af52a10f525614deeb9d8b80f4941ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6abdacc31580b1aaa2f996a56578cf26af52a10f525614deeb9d8b80f4941ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6abdacc31580b1aaa2f996a56578cf26af52a10f525614deeb9d8b80f4941ba7", kill_on_drop: false }`
[INFO] [stdout] 6abdacc31580b1aaa2f996a56578cf26af52a10f525614deeb9d8b80f4941ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 252c2275a255f08614e0b9772aac5964c604192f7285b4eec66dfa60a4995187
[INFO] running `Command { std: "docker" "start" "-a" "252c2275a255f08614e0b9772aac5964c604192f7285b4eec66dfa60a4995187", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling unsafe_unwrap v0.1.0
[INFO] [stderr]    Compiling fast-float v0.2.0
[INFO] [stderr]    Compiling simdutf8 v0.1.3
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling memmap2 v0.2.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling multiversion-macros v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling lexical v5.2.2
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling multiversion v0.6.1
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling arrow v5.1.0
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling polars-arrow v0.15.0
[INFO] [stderr]    Compiling polars-core v0.15.0
[INFO] [stderr]    Compiling polars-io v0.15.0
[INFO] [stderr]    Compiling polars-lazy v0.15.0
[INFO] [stderr]    Compiling polars v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `polars-core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name polars_core --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/polars-core-0.15.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="chrono"' --cfg 'feature="docs"' --cfg 'feature="dtype-date32"' --cfg 'feature="dtype-date64"' --cfg 'feature="lazy"' --cfg 'feature="performant"' --cfg 'feature="plain_fmt"' --cfg 'feature="prettytable-rs"' --cfg 'feature="private"' --cfg 'feature="regex"' --cfg 'feature="sort_multiple"' --cfg 'feature="temporal"' --cfg 'feature="zip_with"' -C metadata=07b20d72256deb97 -C extra-filename=-07b20d72256deb97 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ahash=/opt/rustwide/target/debug/deps/libahash-2a5f202b991696fe.rmeta --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-b5a17cdd882001a9.rmeta --extern arrow=/opt/rustwide/target/debug/deps/libarrow-a57c8513afe652b1.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-a59c72e4db3427ac.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-a9ba72f0e93d8d04.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-ae4a8260a0a356f1.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e92083d5a39a8b50.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-9ddb6435e34c268c.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-c71919f527130ee7.rmeta --extern polars_arrow=/opt/rustwide/target/debug/deps/libpolars_arrow-50005a5d54cce8a5.rmeta --extern prettytable=/opt/rustwide/target/debug/deps/libprettytable-30c600b8193ed015.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-6e60e86c1ae888e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-a3872ea1c1199fca.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-26bcb3d3bb2076f0.rmeta --extern unsafe_unwrap=/opt/rustwide/target/debug/deps/libunsafe_unwrap-67faf3bf89a173ae.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "252c2275a255f08614e0b9772aac5964c604192f7285b4eec66dfa60a4995187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "252c2275a255f08614e0b9772aac5964c604192f7285b4eec66dfa60a4995187", kill_on_drop: false }`
[INFO] [stdout] 252c2275a255f08614e0b9772aac5964c604192f7285b4eec66dfa60a4995187
