[INFO] fetching crate inserter-x 0.1.1...
[INFO] checking inserter-x-0.1.1 against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] extracting crate inserter-x 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate inserter-x 0.1.1 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 crates.io crate inserter-x 0.1.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate inserter-x 0.1.1
[INFO] tweaked toml for crates.io crate inserter-x 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate inserter-x 0.1.1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 564dcdfaeaebd591ac6b6da16d9730524ac688c1571a3afb586bf7831237ca60
[INFO] running `Command { std: "docker" "start" "-a" "564dcdfaeaebd591ac6b6da16d9730524ac688c1571a3afb586bf7831237ca60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "564dcdfaeaebd591ac6b6da16d9730524ac688c1571a3afb586bf7831237ca60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564dcdfaeaebd591ac6b6da16d9730524ac688c1571a3afb586bf7831237ca60", kill_on_drop: false }`
[INFO] [stdout] 564dcdfaeaebd591ac6b6da16d9730524ac688c1571a3afb586bf7831237ca60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 41cb1612e925bdab7bf53750ce14ca1713132e4649e4e1916d1979799c55579b
[INFO] running `Command { std: "docker" "start" "-a" "41cb1612e925bdab7bf53750ce14ca1713132e4649e4e1916d1979799c55579b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
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[INFO] [stderr]    Compiling flatbuffers v24.12.23
[INFO] [stderr]     Checking sqlparser v0.52.0
[INFO] [stderr]    Compiling polars v0.45.1
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[INFO] [stderr]     Checking icu_provider v2.0.0
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[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking polars-arrow-format v0.1.0
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking argh v0.1.13
[INFO] [stderr]     Checking halfbrown v0.2.5
[INFO] [stderr]     Checking arrow-array v53.2.0
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking value-trait v0.10.1
[INFO] [stderr]     Checking h2 v0.4.10
[INFO] [stderr]     Checking simd-json v0.14.3
[INFO] [stderr]     Checking jsonpath_lib_polars_vendor v0.0.1
[INFO] [stderr]     Checking polars-error v0.45.1
[INFO] [stderr]     Checking arrow-select v53.2.0
[INFO] [stderr]     Checking arrow-row v53.2.0
[INFO] [stderr]     Checking arrow-arith v53.2.0
[INFO] [stderr]     Checking arrow-cast v53.2.0
[INFO] [stderr]     Checking arrow-string v53.2.0
[INFO] [stderr]     Checking arrow-ord v53.2.0
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking arrow-ipc v53.2.0
[INFO] [stderr]     Checking arrow v53.2.0
[INFO] [stderr]     Checking hyper-util v0.1.14
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking reqwest v0.12.19
[INFO] [stderr]     Checking polars-row v0.45.1
[INFO] [stderr]     Checking polars-json 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" "41cb1612e925bdab7bf53750ce14ca1713132e4649e4e1916d1979799c55579b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41cb1612e925bdab7bf53750ce14ca1713132e4649e4e1916d1979799c55579b", kill_on_drop: false }`
[INFO] [stdout] 41cb1612e925bdab7bf53750ce14ca1713132e4649e4e1916d1979799c55579b