[INFO] fetching crate polars-mem-engine 0.53.0...
[INFO] checking polars-mem-engine-0.53.0 against 1.95.0 for pr-155915
[INFO] extracting crate polars-mem-engine 0.53.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate polars-mem-engine 0.53.0
[INFO] finished tweaking crates.io crate polars-mem-engine 0.53.0
[INFO] tweaked toml for crates.io crate polars-mem-engine 0.53.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polars-mem-engine 0.53.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polars-mem-engine 0.53.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b63ab1eb53cebdc3eee92d2eb770d9aa9aa4ab5f482c0b3491b019048bda597e
[INFO] running `Command { std: "docker" "start" "-a" "b63ab1eb53cebdc3eee92d2eb770d9aa9aa4ab5f482c0b3491b019048bda597e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b63ab1eb53cebdc3eee92d2eb770d9aa9aa4ab5f482c0b3491b019048bda597e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b63ab1eb53cebdc3eee92d2eb770d9aa9aa4ab5f482c0b3491b019048bda597e", kill_on_drop: false }`
[INFO] [stdout] b63ab1eb53cebdc3eee92d2eb770d9aa9aa4ab5f482c0b3491b019048bda597e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfcf3d3557e502ab6c9aeed86650a6ead17f0d49c0edf99e21e53e5e18f66e0e
[INFO] running `Command { std: "docker" "start" "-a" "bfcf3d3557e502ab6c9aeed86650a6ead17f0d49c0edf99e21e53e5e18f66e0e", kill_on_drop: false }`
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[INFO] [stderr]     Checking polars-row v0.53.0
[INFO] [stderr]     Checking polars-io v0.53.0
[INFO] [stderr]     Checking polars-mem-engine v0.53.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/planner/lp.rs:353:17
[INFO] [stdout]     |
[INFO] [stdout] 353 |             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]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[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:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(super) fn sort_and_groups(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/planner/lp.rs:353:17
[INFO] [stdout]     |
[INFO] [stdout] 353 |             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]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[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:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub(super) fn sort_and_groups(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "bfcf3d3557e502ab6c9aeed86650a6ead17f0d49c0edf99e21e53e5e18f66e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfcf3d3557e502ab6c9aeed86650a6ead17f0d49c0edf99e21e53e5e18f66e0e", kill_on_drop: false }`
[INFO] [stdout] bfcf3d3557e502ab6c9aeed86650a6ead17f0d49c0edf99e21e53e5e18f66e0e
