[INFO] fetching crate halo2-axiom 0.4.1...
[INFO] documenting halo2-axiom-0.4.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate halo2-axiom 0.4.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate halo2-axiom 0.4.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate halo2-axiom 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate halo2-axiom 0.4.1
[INFO] tweaked toml for crates.io crate halo2-axiom 0.4.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate halo2-axiom 0.4.1 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gumdrop v0.8.1
[INFO] [stderr]   Downloaded ark-std v0.3.0
[INFO] [stderr]   Downloaded tabbycat v0.1.2
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.3
[INFO] [stderr]   Downloaded float-ord v0.2.0
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded maybe-rayon v0.1.1
[INFO] [stderr]   Downloaded serde_arrays v0.1.0
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded halo2_legacy_pdqsort v0.1.0
[INFO] [stderr]   Downloaded gumdrop_derive v0.8.1
[INFO] [stderr]   Downloaded font-kit v0.11.0
[INFO] [stderr]   Downloaded pest v2.7.2
[INFO] [stderr]   Downloaded png v0.17.9
[INFO] [stderr]   Downloaded ttf-parser v0.17.1
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded halo2curves-axiom v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa13b427807621ec24494a26374229222cf212fb951a919abff7adf890fc05bb
[INFO] running `Command { std: "docker" "start" "-a" "aa13b427807621ec24494a26374229222cf212fb951a919abff7adf890fc05bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa13b427807621ec24494a26374229222cf212fb951a919abff7adf890fc05bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa13b427807621ec24494a26374229222cf212fb951a919abff7adf890fc05bb", kill_on_drop: false }`
[INFO] [stdout] aa13b427807621ec24494a26374229222cf212fb951a919abff7adf890fc05bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a9275a47175628bce8a7646baab3a5272326a058043ee63962e97f79c231a8f
[INFO] running `Command { std: "docker" "start" "-a" "2a9275a47175628bce8a7646baab3a5272326a058043ee63962e97f79c231a8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]     Checking constant_time_eq v0.2.6
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking blake2b_simd v1.0.1
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling halo2curves-axiom v0.4.2
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking crossbeam v0.8.2
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking pasta_curves v0.5.1
[INFO] [stderr]     Checking pairing v0.23.0
[INFO] [stderr]     Checking serde_arrays v0.1.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking maybe-rayon v0.1.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]  Documenting halo2-axiom v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(associated_type_defaults)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `halo2-axiom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name halo2_axiom src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="batch"' --cfg 'feature="circuit-params"' --cfg 'feature="default"' --cfg 'feature="multicore"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=80fb13ba41613fe2 -L dependency=/opt/rustwide/target/debug/deps --extern blake2b_simd=/opt/rustwide/target/debug/deps/libblake2b_simd-581c1c30cdf70041.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-de45c4bf009dce1d.rmeta --extern ff=/opt/rustwide/target/debug/deps/libff-e23197405993c415.rmeta --extern group=/opt/rustwide/target/debug/deps/libgroup-3b68ee2ca2f50ae4.rmeta --extern halo2curves=/opt/rustwide/target/debug/deps/libhalo2curves_axiom-1785411c3c82dfe1.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-37d18c38d1137595.rmeta --extern maybe_rayon=/opt/rustwide/target/debug/deps/libmaybe_rayon-d7fe90edcfcba005.rmeta --extern pairing=/opt/rustwide/target/debug/deps/libpairing-b71c18f4f9c839c7.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d2ddb8b9c8285dd1.rmeta --extern rand_core=/opt/rustwide/target/debug/deps/librand_core-f62b0ebe892a4444.rmeta --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-97a1b2d1b6045209.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-0363926e9b0d4cbe.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-b75b4d57e8e54e04.rmeta --cap-lints=warn --crate-version 0.4.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2a9275a47175628bce8a7646baab3a5272326a058043ee63962e97f79c231a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a9275a47175628bce8a7646baab3a5272326a058043ee63962e97f79c231a8f", kill_on_drop: false }`
[INFO] [stdout] 2a9275a47175628bce8a7646baab3a5272326a058043ee63962e97f79c231a8f
