[INFO] cloning repository https://github.com/JiangXb-son/zokrates_0331
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JiangXb-son/zokrates_0331" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiangXb-son%2Fzokrates_0331", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiangXb-son%2Fzokrates_0331'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0bbecb43ff9aa42eda5adf6f9a439fa0315d778f
[INFO] documenting JiangXb-son/zokrates_0331 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiangXb-son%2Fzokrates_0331" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JiangXb-son/zokrates_0331 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JiangXb-son/zokrates_0331
[INFO] finished tweaking git repo https://github.com/JiangXb-son/zokrates_0331
[INFO] tweaked toml for git repo https://github.com/JiangXb-son/zokrates_0331 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/JiangXb-son/zokrates_0331 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1544f1c8fe7de1a5e1808800b316b562becc50a3fc66e1b8b40bf5a8a7697dcb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1544f1c8fe7de1a5e1808800b316b562becc50a3fc66e1b8b40bf5a8a7697dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1544f1c8fe7de1a5e1808800b316b562becc50a3fc66e1b8b40bf5a8a7697dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1544f1c8fe7de1a5e1808800b316b562becc50a3fc66e1b8b40bf5a8a7697dcb", kill_on_drop: false }`
[INFO] [stdout] 1544f1c8fe7de1a5e1808800b316b562becc50a3fc66e1b8b40bf5a8a7697dcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c6c2a9cb8cc5a2bf01830a83fa8cbe7e30e2acaa423b485dd1008f122e691e79
[INFO] running `Command { std: "docker" "start" "-a" "c6c2a9cb8cc5a2bf01830a83fa8cbe7e30e2acaa423b485dd1008f122e691e79", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-keccak v2.0.1
[INFO] [stderr]    Compiling hex v0.3.2
[INFO] [stderr]    Compiling zokrates_core v0.4.2 (/opt/rustwide/workdir/zokrates_core)
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.7
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling reduce v0.1.2
[INFO] [stderr]    Compiling zokrates_fs_resolver v0.5.0 (/opt/rustwide/workdir/zokrates_fs_resolver)
[INFO] [stderr]  Documenting zokrates_fs_resolver v0.5.0 (/opt/rustwide/workdir/zokrates_fs_resolver)
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling from-pest v0.3.1
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]     Checking serde_bytes v0.10.5
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling blake2-rfc_bellman_edition v0.0.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]    Compiling zokrates_cli v0.5.2 (/opt/rustwide/workdir/zokrates_cli)
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.44
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]     Checking bincode v0.8.0
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling zokrates_parser v0.1.4 (/opt/rustwide/workdir/zokrates_parser)
[INFO] [stderr]  Documenting zokrates_parser v0.1.4 (/opt/rustwide/workdir/zokrates_parser)
[INFO] [stderr]    Compiling ff_derive_ce v0.5.1
[INFO] [stderr]    Compiling single v1.0.0
[INFO] [stderr]    Compiling pest-ast v0.3.3
[INFO] [stderr]     Checking ff_ce v0.7.1
[INFO] [stderr]    Compiling pairing_ce v0.18.0
[INFO] [stderr]     Checking bellman_ce v0.3.1
[INFO] [stderr]     Checking bellman_ce v0.3.1 (https://github.com/matter-labs/bellman?rev=9e35737#9e357372)
[INFO] [stderr]     Checking zokrates_field v0.3.5 (/opt/rustwide/workdir/zokrates_field)
[INFO] [stderr]  Documenting zokrates_field v0.3.5 (/opt/rustwide/workdir/zokrates_field)
[INFO] [stderr]    Compiling zokrates_pest_ast v0.1.3 (/opt/rustwide/workdir/zokrates_pest_ast)
[INFO] [stderr]  Documenting zokrates_pest_ast v0.1.3 (/opt/rustwide/workdir/zokrates_pest_ast)
[INFO] [stderr]     Checking sapling-crypto_ce v0.1.2
[INFO] [stderr]     Checking zokrates_embed v0.1.1 (/opt/rustwide/workdir/zokrates_embed)
[INFO] [stderr]  Documenting zokrates_embed v0.1.1 (/opt/rustwide/workdir/zokrates_embed)
[INFO] [stderr]  Documenting zokrates_core v0.4.2 (/opt/rustwide/workdir/zokrates_core)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> zokrates_core/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns, box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> zokrates_core/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns, box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `zokrates_core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name zokrates_core zokrates_core/src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bellman_ce=/opt/rustwide/target/debug/deps/libbellman_ce-8790f893541f27ed.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-3cd3a91cfb5462f6.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c464fe12fd6a38d6.rmeta --extern ff_ce=/opt/rustwide/target/debug/deps/libff_ce-70091be126a59ca9.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-e36cdf552f9f376b.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-e44e56559d9ff7ea.rmeta --extern pairing_ce=/opt/rustwide/target/debug/deps/libpairing_ce-68cf571a740733b2.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-80c9b57e42ac9ada.rmeta --extern reduce=/opt/rustwide/target/debug/deps/libreduce-9de04ef9a7825e00.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-eaacaea7c06ae2da.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-290adf5f15dd4dc4.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-960c70a83b2f64e3.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-eeb91005d94721c3.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-59abdc3a0f25a3ad.rmeta --extern typed_arena=/opt/rustwide/target/debug/deps/libtyped_arena-fea0123e1b977153.rmeta --extern zokrates_embed=/opt/rustwide/target/debug/deps/libzokrates_embed-14c44bc30b58e85f.rmeta --extern zokrates_field=/opt/rustwide/target/debug/deps/libzokrates_field-edfa1696de727c6d.rmeta --extern zokrates_pest_ast=/opt/rustwide/target/debug/deps/libzokrates_pest_ast-3e6cee2e13242d54.rmeta --cap-lints=warn --crate-version 0.4.2` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "c6c2a9cb8cc5a2bf01830a83fa8cbe7e30e2acaa423b485dd1008f122e691e79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6c2a9cb8cc5a2bf01830a83fa8cbe7e30e2acaa423b485dd1008f122e691e79", kill_on_drop: false }`
[INFO] [stdout] c6c2a9cb8cc5a2bf01830a83fa8cbe7e30e2acaa423b485dd1008f122e691e79
