[INFO] fetching crate ark-ff-optimized 0.4.1...
[INFO] documenting ark-ff-optimized-0.4.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate ark-ff-optimized 0.4.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ark-ff-optimized 0.4.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-ff-optimized 0.4.1
[INFO] finished tweaking crates.io crate ark-ff-optimized 0.4.1
[INFO] tweaked toml for crates.io crate ark-ff-optimized 0.4.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ark-algebra-bench-templates v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9563d84bc80f45cd9ab3aa7aaba67b315b32aab0bb40cc29800a83e0e183c2bc
[INFO] running `Command { std: "docker" "start" "-a" "9563d84bc80f45cd9ab3aa7aaba67b315b32aab0bb40cc29800a83e0e183c2bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9563d84bc80f45cd9ab3aa7aaba67b315b32aab0bb40cc29800a83e0e183c2bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9563d84bc80f45cd9ab3aa7aaba67b315b32aab0bb40cc29800a83e0e183c2bc", kill_on_drop: false }`
[INFO] [stdout] 9563d84bc80f45cd9ab3aa7aaba67b315b32aab0bb40cc29800a83e0e183c2bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff57297b1cca1f7fd595ac2cd286ce7817c5e3484c0ced5178bd2ca6d15e13db
[INFO] running `Command { std: "docker" "start" "-a" "ff57297b1cca1f7fd595ac2cd286ce7817c5e3484c0ced5178bd2ca6d15e13db", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]     Checking ark-std v0.4.0
[INFO] [stderr]     Checking ark-serialize v0.4.2
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking ark-ff v0.4.2
[INFO] [stderr]  Documenting ark-ff-optimized 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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_mut_refs, const_trait_impl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `ark-ff-optimized`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name ark_ff_optimized src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ea43aeea8e9c301f -L dependency=/opt/rustwide/target/debug/deps --extern ark_ff=/opt/rustwide/target/debug/deps/libark_ff-9e80ca450b1b0192.rmeta --extern ark_serialize=/opt/rustwide/target/debug/deps/libark_serialize-2d85fd413a9fc860.rmeta --extern ark_std=/opt/rustwide/target/debug/deps/libark_std-f568a0384e5872fc.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-0da737a33bd1d5d1.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-37be783302da6ca3.rmeta --cap-lints=warn --crate-version 0.4.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ff57297b1cca1f7fd595ac2cd286ce7817c5e3484c0ced5178bd2ca6d15e13db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff57297b1cca1f7fd595ac2cd286ce7817c5e3484c0ced5178bd2ca6d15e13db", kill_on_drop: false }`
[INFO] [stdout] ff57297b1cca1f7fd595ac2cd286ce7817c5e3484c0ced5178bd2ca6d15e13db
[INFO] documenting ark-ff-optimized-0.4.1 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate ark-ff-optimized 0.4.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate ark-ff-optimized 0.4.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ark-ff-optimized 0.4.1
[INFO] finished tweaking crates.io crate ark-ff-optimized 0.4.1
[INFO] tweaked toml for crates.io crate ark-ff-optimized 0.4.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86fb6d143f5ba62bed295e21b29826570713e42e5782ddf50cf496c93abf9638
[INFO] running `Command { std: "docker" "start" "-a" "86fb6d143f5ba62bed295e21b29826570713e42e5782ddf50cf496c93abf9638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86fb6d143f5ba62bed295e21b29826570713e42e5782ddf50cf496c93abf9638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86fb6d143f5ba62bed295e21b29826570713e42e5782ddf50cf496c93abf9638", kill_on_drop: false }`
[INFO] [stdout] 86fb6d143f5ba62bed295e21b29826570713e42e5782ddf50cf496c93abf9638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77a3ba80797f43e22c36ce694b34131fb076f7f82eebbfd88735dfeb84f33a86
[INFO] running `Command { std: "docker" "start" "-a" "77a3ba80797f43e22c36ce694b34131fb076f7f82eebbfd88735dfeb84f33a86", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]     Checking ark-std v0.4.0
[INFO] [stderr]     Checking ark-serialize v0.4.2
[INFO] [stderr]    Compiling ark-ff-macros v0.4.2
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking ark-ff v0.4.2
[INFO] [stderr]  Documenting ark-ff-optimized v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_mut_refs, const_trait_impl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `ark-ff-optimized`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name ark_ff_optimized src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=96cdb924c16d2235 -L dependency=/opt/rustwide/target/debug/deps --extern ark_ff=/opt/rustwide/target/debug/deps/libark_ff-4125ea115bac6708.rmeta --extern ark_serialize=/opt/rustwide/target/debug/deps/libark_serialize-c897f124def404ad.rmeta --extern ark_std=/opt/rustwide/target/debug/deps/libark_std-4b3d4b84cf46c5bd.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-2f7aca14cd182de9.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-6ba7968face7cb1f.rmeta --cap-lints=warn --crate-version 0.4.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "77a3ba80797f43e22c36ce694b34131fb076f7f82eebbfd88735dfeb84f33a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a3ba80797f43e22c36ce694b34131fb076f7f82eebbfd88735dfeb84f33a86", kill_on_drop: false }`
[INFO] [stdout] 77a3ba80797f43e22c36ce694b34131fb076f7f82eebbfd88735dfeb84f33a86
