[INFO] fetching crate seismic 0.2.1...
[INFO] testing seismic-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate seismic 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate seismic 0.2.1
[INFO] finished tweaking crates.io crate seismic 0.2.1
[INFO] tweaked toml for crates.io crate seismic 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seismic 0.2.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate seismic 0.2.1 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd1e4563f408092de637a91c85864194df4c76762ce52602c1d4211554f1ac4f
[INFO] running `Command { std: "docker" "start" "-a" "fd1e4563f408092de637a91c85864194df4c76762ce52602c1d4211554f1ac4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd1e4563f408092de637a91c85864194df4c76762ce52602c1d4211554f1ac4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd1e4563f408092de637a91c85864194df4c76762ce52602c1d4211554f1ac4f", kill_on_drop: false }`
[INFO] [stdout] fd1e4563f408092de637a91c85864194df4c76762ce52602c1d4211554f1ac4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b64c879fecc2274fcd516abc5b295703a8857a74b328336582647735181d62e9
[INFO] running `Command { std: "docker" "start" "-a" "b64c879fecc2274fcd516abc5b295703a8857a74b328336582647735181d62e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling pyo3-build-config v0.21.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling portable-atomic v1.11.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling either v1.14.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling pyo3-ffi v0.21.2
[INFO] [stderr]    Compiling pyo3 v0.21.2
[INFO] [stderr]    Compiling flate2 v1.1.0
[INFO] [stderr]    Compiling clap_builder v4.5.31
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling xattr v1.4.0
[INFO] [stderr]    Compiling tar v0.4.44
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling pyo3-macros-backend v0.21.2
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.28
[INFO] [stderr]    Compiling generic-tests v0.1.3
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling zip v0.5.13
[INFO] [stderr]    Compiling pest v2.7.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling clap v4.5.31
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pest_meta v2.7.15
[INFO] [stderr]    Compiling pyo3-macros v0.21.2
[INFO] [stderr]    Compiling pest_generator v2.7.15
[INFO] [stderr]    Compiling pest_derive v2.7.15
[INFO] [stderr]    Compiling py_literal v0.4.0
[INFO] [stderr]    Compiling ndarray-npy v0.8.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde-big-array v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling qwt v0.2.0
[INFO] [stderr]    Compiling numpy v0.21.0
[INFO] [stderr]    Compiling seismic v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_array_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/json_utils.rs:62:18
[INFO] [stdout]    |
[INFO] [stdout] 62 |         .map(|x| (extract_jsonl(x.unwrap())))
[INFO] [stdout]    |                  ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 62 -         .map(|x| (extract_jsonl(x.unwrap())))
[INFO] [stdout] 62 +         .map(|x| extract_jsonl(x.unwrap()))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `seismic` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b64c879fecc2274fcd516abc5b295703a8857a74b328336582647735181d62e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64c879fecc2274fcd516abc5b295703a8857a74b328336582647735181d62e9", kill_on_drop: false }`
[INFO] [stdout] b64c879fecc2274fcd516abc5b295703a8857a74b328336582647735181d62e9