[INFO] fetching crate kungfu 0.1.18...
[INFO] documenting kungfu-0.1.18 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate kungfu 0.1.18 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate kungfu 0.1.18 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kungfu 0.1.18
[INFO] finished tweaking crates.io crate kungfu 0.1.18
[INFO] tweaked toml for crates.io crate kungfu 0.1.18 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate kungfu 0.1.18 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-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trust-dns-client v0.22.0
[INFO] [stderr]   Downloaded pnet_transport v0.33.0
[INFO] [stderr]   Downloaded rustix v0.36.12
[INFO] [stderr]   Downloaded is-terminal v0.4.6
[INFO] [stderr]   Downloaded rustix v0.37.7
[INFO] [stderr]   Downloaded fast-socks5 v0.8.2
[INFO] [stderr]   Downloaded pnet_macros v0.33.0
[INFO] [stderr]   Downloaded pnet_base v0.33.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.33.0
[INFO] [stderr]   Downloaded pnet_packet v0.33.0
[INFO] [stderr]   Downloaded pnet_sys v0.33.0
[INFO] [stderr]   Downloaded pnet v0.33.0
[INFO] [stderr]   Downloaded procfs v0.14.2
[INFO] [stderr]   Downloaded trust-dns-server v0.22.0
[INFO] [stderr]   Downloaded ioctl-sys v0.6.0
[INFO] [stderr]   Downloaded no-std-net v0.6.0
[INFO] [stderr]   Downloaded pnet_datalink v0.33.0
[INFO] [stderr]   Downloaded tun v0.5.5
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9396c4c7bdf796ddad96b71e8a20e32206f45200033552f802527f5f3d1b7a6d
[INFO] running `Command { std: "docker" "start" "-a" "9396c4c7bdf796ddad96b71e8a20e32206f45200033552f802527f5f3d1b7a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9396c4c7bdf796ddad96b71e8a20e32206f45200033552f802527f5f3d1b7a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9396c4c7bdf796ddad96b71e8a20e32206f45200033552f802527f5f3d1b7a6d", kill_on_drop: false }`
[INFO] [stdout] 9396c4c7bdf796ddad96b71e8a20e32206f45200033552f802527f5f3d1b7a6d
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e7720f7dc69e230532e8ac8fe2a73aaa870a064d566ac559542893145cc82b7
[INFO] running `Command { std: "docker" "start" "-a" "4e7720f7dc69e230532e8ac8fe2a73aaa870a064d566ac559542893145cc82b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling rustix v0.37.7
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking pnet_base v0.33.0
[INFO] [stderr]    Compiling syn v2.0.13
[INFO] [stderr]    Compiling indexmap v1.9.3
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[INFO] [stderr]    Compiling aho-corasick v0.7.20
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[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.6
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[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking parking_lot v0.12.1
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[INFO] [stderr]     Checking hostname v0.3.1
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[INFO] [stderr]    Compiling procfs v0.14.2
[INFO] [stderr]     Checking concolor-override v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.70
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[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking concolor-query v0.3.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking anstyle v0.3.5
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking time v0.3.20
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling prometheus v0.13.3
[INFO] [stderr]     Checking clap_lex v0.4.1
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]    Compiling pnet v0.33.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling regex v1.7.3
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[INFO] [stderr]     Checking walkdir v2.3.3
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[INFO] [stderr]     Checking anstream v0.2.6
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[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking notify v5.1.0
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking lru v0.10.0
[INFO] [stderr]    Compiling tokio-macros v2.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling clap_derive v4.2.0
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling enum-as-inner v0.5.1
[INFO] [stderr]    Compiling pnet_macros v0.33.0
[INFO] [stderr]     Checking clap v4.2.1
[INFO] [stderr]     Checking pnet_packet v0.33.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-util v0.7.7
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking tokio-stream v0.1.12
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tun v0.5.5
[INFO] [stderr]     Checking fast-socks5 v0.8.2
[INFO] [stderr]     Checking pnet_transport v0.33.0
[INFO] [stderr]     Checking h2 v0.3.16
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking ipnetwork v0.20.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking serde_yaml v0.9.19
[INFO] [stderr]     Checking pnet_datalink v0.33.0
[INFO] [stderr]     Checking trust-dns-proto v0.22.0
[INFO] [stderr]     Checking hyper v0.14.25
[INFO] [stderr]     Checking trust-dns-resolver v0.22.0
[INFO] [stderr]     Checking trust-dns-client v0.22.0
[INFO] [stderr]     Checking trust-dns-server v0.22.0
[INFO] [stderr]  Documenting kungfu v0.1.18 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `kungfu`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name kungfu src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=3fecb767d4a20bbb -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-786d3ce15e597831.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-ffe77282a2da81c1.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-1fc1fbcc850caeea.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-a8fb10b78917859f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-f779b42ffdaa2187.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-670dab2af318b23a.rmeta --extern fast_socks5=/opt/rustwide/target/debug/deps/libfast_socks5-a57fc19db14a64e2.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-4c5ac5845e789fd1.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-0d9839ec8c158f40.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-d44cff3d49aee9c1.rmeta --extern ipnet=/opt/rustwide/target/debug/deps/libipnet-9300157b6fe91510.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-35fef88997af0fd0.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-68fd2491f1f4c65a.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-f61fa1e13d4e5cfe.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-2a5b63c720a9ef70.rmeta --extern pnet=/opt/rustwide/target/debug/deps/libpnet-b921c4d232b0915f.rmeta --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-30c4b1a9926a5dc6.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d36c609fb36c0c2f.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-96d8f8b0cc32cc5b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-78fc21b7330054d2.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-92914a35dd33288a.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-0e6c5c9e3e9a6330.so --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-66c6f6db4a8d8b4f.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-5e67695be1fea7b5.rmeta --extern tokio_io_timeout=/opt/rustwide/target/debug/deps/libtokio_io_timeout-e07f778eddd748aa.rmeta --extern trust_dns_server=/opt/rustwide/target/debug/deps/libtrust_dns_server-423c445e488f315b.rmeta --extern tun=/opt/rustwide/target/debug/deps/libtun-91f4eac85b780ca4.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-19a1d26d1d078856.rmeta --cap-lints=warn --crate-version 0.1.18` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4e7720f7dc69e230532e8ac8fe2a73aaa870a064d566ac559542893145cc82b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e7720f7dc69e230532e8ac8fe2a73aaa870a064d566ac559542893145cc82b7", kill_on_drop: false }`
[INFO] [stdout] 4e7720f7dc69e230532e8ac8fe2a73aaa870a064d566ac559542893145cc82b7
