[INFO] fetching crate plonky2_por 1.4.4...
[INFO] testing plonky2_por-1.4.4 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate plonky2_por 1.4.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate plonky2_por 1.4.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate plonky2_por 1.4.4
[INFO] tweaked toml for crates.io crate plonky2_por 1.4.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate plonky2_por 1.4.4 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate plonky2_por 1.4.4 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc5ea0bf39f9df142a4836f21491a7d610d038b21a0880f5b5502d70ad2950a5
[INFO] running `Command { std: "docker" "start" "-a" "cc5ea0bf39f9df142a4836f21491a7d610d038b21a0880f5b5502d70ad2950a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc5ea0bf39f9df142a4836f21491a7d610d038b21a0880f5b5502d70ad2950a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc5ea0bf39f9df142a4836f21491a7d610d038b21a0880f5b5502d70ad2950a5", kill_on_drop: false }`
[INFO] [stdout] cc5ea0bf39f9df142a4836f21491a7d610d038b21a0880f5b5502d70ad2950a5
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51462686c79e161ef4fea81024501586ea72484209a498b229266c9d0da96c1a
[INFO] running `Command { std: "docker" "start" "-a" "51462686c79e161ef4fea81024501586ea72484209a498b229266c9d0da96c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling cc v1.2.21
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling uint v0.9.5
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling fixed-hash v0.7.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling jemalloc-sys v0.5.4+5.3.0-patched
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling libm v0.2.14
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling primitive-types v0.10.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling bigdecimal v0.4.8
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling unroll v0.1.5
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling plonky2_util v1.0.0
[INFO] [stderr]    Compiling clap_builder v4.5.41
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]    Compiling keccak-hash v0.8.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling plonky2_maybe_rayon v1.0.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling doctest-file v1.0.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.63
[INFO] [stderr]    Compiling jiff v0.2.12
[INFO] [stderr]    Compiling interprocess v2.2.3
[INFO] [stderr]    Compiling clap v4.5.41
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling daemonize v0.5.0
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling plonky2_field v1.0.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/plonky2_field-1.0.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/plonky2_field-1.0.0/src/lib.rs:7:37
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(target_arch = "x86_64", feature(stdarch_x86_avx512))]
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `plonky2_field` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "51462686c79e161ef4fea81024501586ea72484209a498b229266c9d0da96c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51462686c79e161ef4fea81024501586ea72484209a498b229266c9d0da96c1a", kill_on_drop: false }`
[INFO] [stdout] 51462686c79e161ef4fea81024501586ea72484209a498b229266c9d0da96c1a