[INFO] fetching crate polars-json 0.53.0...
[INFO] testing polars-json-0.53.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate polars-json 0.53.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate polars-json 0.53.0
[INFO] finished tweaking crates.io crate polars-json 0.53.0
[INFO] tweaked toml for crates.io crate polars-json 0.53.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polars-json 0.53.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polars-json 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" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bac776535e1669e00cc5354827bf8fdbe6897f70da4ea2d9a3beb7654ab3f822
[INFO] running `Command { std: "docker" "start" "-a" "bac776535e1669e00cc5354827bf8fdbe6897f70da4ea2d9a3beb7654ab3f822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bac776535e1669e00cc5354827bf8fdbe6897f70da4ea2d9a3beb7654ab3f822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac776535e1669e00cc5354827bf8fdbe6897f70da4ea2d9a3beb7654ab3f822", kill_on_drop: false }`
[INFO] [stdout] bac776535e1669e00cc5354827bf8fdbe6897f70da4ea2d9a3beb7654ab3f822
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba7b0da593953947213687aaef629d0d7da3813decdb68c65fd46b477ad60ba5
[INFO] running `Command { std: "docker" "start" "-a" "ba7b0da593953947213687aaef629d0d7da3813decdb68c65fd46b477ad60ba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling find-msvc-tools v0.1.7
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling signal-hook v0.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling polars-utils v0.53.0
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]    Compiling zmij v1.0.12
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling polars-schema v0.53.0
[INFO] [stderr]    Compiling polars-buffer v0.53.0
[INFO] [stderr]    Compiling cc v1.2.52
[INFO] [stderr]    Compiling raw-cpuid v11.6.0
[INFO] [stderr]    Compiling chrono-tz v0.10.4
[INFO] [stderr]    Compiling phf_shared v0.12.1
[INFO] [stderr]    Compiling polars-arrow v0.53.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling polars-compute v0.53.0
[INFO] [stderr]    Compiling ethnum v1.5.2
[INFO] [stderr]    Compiling phf v0.12.1
[INFO] [stderr]    Compiling debug_unsafe v0.1.3
[INFO] [stderr]    Compiling atoi_simd v0.17.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling fast-float2 v0.2.3
[INFO] [stderr]    Compiling strength_reduce v0.2.4
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling polars-error v0.53.0
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling stacker v0.1.22
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling float-cmp v0.10.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling ar_archive_writer v0.2.0
[INFO] [stderr]    Compiling zerocopy-derive v0.8.33
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling psm v0.1.28
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling argminmax v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling compact_str v0.9.0
[INFO] [stderr]    Compiling halfbrown v0.4.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling value-trait v0.12.1
[INFO] [stderr]    Compiling simd-json v0.17.0
[INFO] [stderr]    Compiling polars-json v0.53.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.66s
[INFO] running `Command { std: "docker" "inspect" "ba7b0da593953947213687aaef629d0d7da3813decdb68c65fd46b477ad60ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba7b0da593953947213687aaef629d0d7da3813decdb68c65fd46b477ad60ba5", kill_on_drop: false }`
[INFO] [stdout] ba7b0da593953947213687aaef629d0d7da3813decdb68c65fd46b477ad60ba5
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 663aca7c51b737034dfef82739d9bfb8b99fa9ec8379463610bd67eafc5a7f74
[INFO] running `Command { std: "docker" "start" "-a" "663aca7c51b737034dfef82739d9bfb8b99fa9ec8379463610bd67eafc5a7f74", kill_on_drop: false }`
[INFO] [stderr]    Compiling polars-json v0.53.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "663aca7c51b737034dfef82739d9bfb8b99fa9ec8379463610bd67eafc5a7f74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663aca7c51b737034dfef82739d9bfb8b99fa9ec8379463610bd67eafc5a7f74", kill_on_drop: false }`
[INFO] [stdout] 663aca7c51b737034dfef82739d9bfb8b99fa9ec8379463610bd67eafc5a7f74
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fd7fc64937802f7bf3a91aa474b6fb692521bb36a481058a3a09d0d29d662557
[INFO] running `Command { std: "docker" "start" "-a" "fd7fc64937802f7bf3a91aa474b6fb692521bb36a481058a3a09d0d29d662557", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/polars_json-567de3429397d5ab)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests polars_json
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fd7fc64937802f7bf3a91aa474b6fb692521bb36a481058a3a09d0d29d662557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd7fc64937802f7bf3a91aa474b6fb692521bb36a481058a3a09d0d29d662557", kill_on_drop: false }`
[INFO] [stdout] fd7fc64937802f7bf3a91aa474b6fb692521bb36a481058a3a09d0d29d662557
