[INFO] cloning repository https://github.com/WeiNyn/arrow_flight_polars
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WeiNyn/arrow_flight_polars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeiNyn%2Farrow_flight_polars", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeiNyn%2Farrow_flight_polars'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 656a20a5929785cbf97963b8269c7c53e51266d9
[INFO] checking WeiNyn/arrow_flight_polars against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeiNyn%2Farrow_flight_polars" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WeiNyn/arrow_flight_polars on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WeiNyn/arrow_flight_polars
[INFO] finished tweaking git repo https://github.com/WeiNyn/arrow_flight_polars
[INFO] tweaked toml for git repo https://github.com/WeiNyn/arrow_flight_polars written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/WeiNyn/arrow_flight_polars 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 194ca69e54d11c8428ab4e3f433d9284669b64a5f3bdf9d6ed5919f535f0816c
[INFO] running `Command { std: "docker" "start" "-a" "194ca69e54d11c8428ab4e3f433d9284669b64a5f3bdf9d6ed5919f535f0816c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "194ca69e54d11c8428ab4e3f433d9284669b64a5f3bdf9d6ed5919f535f0816c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194ca69e54d11c8428ab4e3f433d9284669b64a5f3bdf9d6ed5919f535f0816c", kill_on_drop: false }`
[INFO] [stdout] 194ca69e54d11c8428ab4e3f433d9284669b64a5f3bdf9d6ed5919f535f0816c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70e797bebc1c4fc7dadd6f463a472199f49c72ae52f91ce00de2b27268bf36d4
[INFO] running `Command { std: "docker" "start" "-a" "70e797bebc1c4fc7dadd6f463a472199f49c72ae52f91ce00de2b27268bf36d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
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[INFO] [stderr]     Checking arrow-select v54.0.0
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[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking now v0.1.3
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[INFO] [stderr]    Compiling httparse v1.9.5
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[INFO] [stderr]    Compiling flatbuffers v24.12.23
[INFO] [stderr]    Compiling recursive-proc-macro-impl v0.1.1
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[INFO] [stderr]     Checking h2 v0.4.7
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[INFO] [stderr]    Compiling polars-lazy v0.45.1
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[INFO] [stderr]     Checking brotli-decompressor v4.0.1
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking hyper v1.5.2
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]    Compiling polars v0.45.1
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking polars-parquet-format v0.1.0
[INFO] [stderr]     Checking lazy_static v1.5.0
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[INFO] [stderr]     Checking integer-encoding v3.0.4
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[INFO] [stderr]     Checking arrow-csv v54.0.0
[INFO] [stderr]     Checking thrift v0.17.0
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]     Checking prost v0.13.4
[INFO] [stderr]     Checking lz4_flex v0.11.3
[INFO] [stderr]     Checking brotli v7.0.0
[INFO] [stderr]     Checking prost-types v0.13.4
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking arrow-string v54.0.0
[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stderr]     Checking arrow-ord v54.0.0
[INFO] [stderr]     Checking arrow-arith v54.0.0
[INFO] [stderr]     Checking arrow-row v54.0.0
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking tempfile v3.15.0
[INFO] [stderr]     Checking arrow v54.0.0
[INFO] [stderr]     Checking hyper-timeout v0.5.2
[INFO] [stderr]     Checking lz4 v1.28.1
[INFO] [stderr]     Checking parquet v54.0.0
[INFO] [stderr]     Checking tonic v0.12.3
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[INFO] [stderr]     Checking polars-row v0.45.1
[INFO] [stderr]     Checking polars-parquet v0.45.1
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-core-0.45.1/src/chunked_array/mod.rs:254:9
[INFO] [stdout]     |
[INFO] [stdout] 254 | /         self.md.as_ref().try_read().map_or(
[INFO] [stdout] 255 | |             MetadataReadGuard::Locked(&Metadata::DEFAULT),
[INFO] [stdout]     | |                                        ----------------- temporary value created here
[INFO] [stdout] 256 | |             MetadataReadGuard::Unlocked,
[INFO] [stdout] 257 | |         )
[INFO] [stdout]     | |_________^ returns a value referencing data owned by the current function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `polars-core` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "70e797bebc1c4fc7dadd6f463a472199f49c72ae52f91ce00de2b27268bf36d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e797bebc1c4fc7dadd6f463a472199f49c72ae52f91ce00de2b27268bf36d4", kill_on_drop: false }`
[INFO] [stdout] 70e797bebc1c4fc7dadd6f463a472199f49c72ae52f91ce00de2b27268bf36d4