[INFO] fetching crate kungfu 0.1.18...
[INFO] documenting kungfu-0.1.18 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate kungfu 0.1.18 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate kungfu 0.1.18 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "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-tc1/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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_transport v0.33.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.33.0
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[INFO] [stderr]   Downloaded pnet_base v0.33.0
[INFO] [stderr]   Downloaded pnet_macros v0.33.0
[INFO] [stderr]   Downloaded pnet_datalink v0.33.0
[INFO] [stderr]   Downloaded fast-socks5 v0.8.2
[INFO] [stderr]   Downloaded is-terminal v0.4.6
[INFO] [stderr]   Downloaded tun v0.5.5
[INFO] [stderr]   Downloaded ioctl-sys v0.6.0
[INFO] [stderr]   Downloaded pnet v0.33.0
[INFO] [stderr]   Downloaded pnet_sys v0.33.0
[INFO] [stderr]   Downloaded pnet_packet v0.33.0
[INFO] [stderr]   Downloaded trust-dns-server v0.22.0
[INFO] [stderr]   Downloaded rustix v0.37.7
[INFO] [stderr]   Downloaded rustix v0.36.12
[INFO] [stderr]   Downloaded procfs v0.14.2
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7783e425b2e9c1b441f0e9144f84da35fde6627a1f5601e3ae2026d2bbd979af
[INFO] running `Command { std: "docker" "start" "-a" "7783e425b2e9c1b441f0e9144f84da35fde6627a1f5601e3ae2026d2bbd979af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7783e425b2e9c1b441f0e9144f84da35fde6627a1f5601e3ae2026d2bbd979af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7783e425b2e9c1b441f0e9144f84da35fde6627a1f5601e3ae2026d2bbd979af", kill_on_drop: false }`
[INFO] [stdout] 7783e425b2e9c1b441f0e9144f84da35fde6627a1f5601e3ae2026d2bbd979af
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2db4e807b843400ed849e402cd8d99c3ba1a67de3a15c3eadffaf9005cc3de2
[INFO] running `Command { std: "docker" "start" "-a" "d2db4e807b843400ed849e402cd8d99c3ba1a67de3a15c3eadffaf9005cc3de2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytes v1.4.0
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[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking tinyvec v1.6.0
[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 unicode-bidi v0.3.13
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[INFO] [stderr]     Checking linux-raw-sys v0.1.4
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[INFO] [stderr]     Checking hex v0.4.3
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[INFO] [stderr]    Compiling futures-macro v0.3.28
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[INFO] [stderr]     Checking clap v4.2.1
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[INFO] [stderr]     Checking pnet_packet v0.33.0
[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-stream v0.1.12
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[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 h2 v0.3.16
[INFO] [stderr]     Checking pnet_transport v0.33.0
[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-client v0.22.0
[INFO] [stderr]     Checking trust-dns-resolver 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 stable 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=b869c932498405bf -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-bd46d31f09dc8c20.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-7b0c66b12d90e93b.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-cdba088f09c8631e.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-7b50ac7c854b542b.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-6d72ce6658a29119.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-eae943619b75c009.rmeta --extern fast_socks5=/opt/rustwide/target/debug/deps/libfast_socks5-29f61d7af7576167.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-e64d946fe98f0edd.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-ce8b0f24601babb7.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-12c70b793331ba74.rmeta --extern ipnet=/opt/rustwide/target/debug/deps/libipnet-ed83eebaae1a581e.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9c7d51f549cf58b7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-83c76fb4ff61e17e.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-39e41620e305ace1.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-1590a20bed83c1f9.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-8cf5e351ce8c0d58.rmeta --extern pnet=/opt/rustwide/target/debug/deps/libpnet-872433f34a53f1a7.rmeta --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-2c061e465a06db0f.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-74d0e4c1d8455524.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-c9cbb7e046980965.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f5b9c786bd3fed62.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e43eb678e32b395b.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-741b38c446a63420.so --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-dfbec5ba6edb24f9.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-5ecd6cf7385bb9df.rmeta --extern tokio_io_timeout=/opt/rustwide/target/debug/deps/libtokio_io_timeout-96756fe0b7f6c3fa.rmeta --extern trust_dns_server=/opt/rustwide/target/debug/deps/libtrust_dns_server-dee31658c1ab9144.rmeta --extern tun=/opt/rustwide/target/debug/deps/libtun-3084aa6657922d7c.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-94984848f6982b03.rmeta --cap-lints=warn --crate-version 0.1.18` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d2db4e807b843400ed849e402cd8d99c3ba1a67de3a15c3eadffaf9005cc3de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2db4e807b843400ed849e402cd8d99c3ba1a67de3a15c3eadffaf9005cc3de2", kill_on_drop: false }`
[INFO] [stdout] d2db4e807b843400ed849e402cd8d99c3ba1a67de3a15c3eadffaf9005cc3de2
