[INFO] fetching crate sugiura-hiromichi_tp 0.2.0...
[INFO] documenting sugiura-hiromichi_tp-0.2.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate sugiura-hiromichi_tp 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate sugiura-hiromichi_tp 0.2.0 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 sugiura-hiromichi_tp 0.2.0
[INFO] finished tweaking crates.io crate sugiura-hiromichi_tp 0.2.0
[INFO] tweaked toml for crates.io crate sugiura-hiromichi_tp 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate sugiura-hiromichi_tp 0.2.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded sugiura-hiromichi_mylibrary v1.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9237be776686a581df7591f4258b226b66fc0d747bebe9727f2d8f9d7fa97769
[INFO] running `Command { std: "docker" "start" "-a" "9237be776686a581df7591f4258b226b66fc0d747bebe9727f2d8f9d7fa97769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9237be776686a581df7591f4258b226b66fc0d747bebe9727f2d8f9d7fa97769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9237be776686a581df7591f4258b226b66fc0d747bebe9727f2d8f9d7fa97769", kill_on_drop: false }`
[INFO] [stdout] 9237be776686a581df7591f4258b226b66fc0d747bebe9727f2d8f9d7fa97769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5a2e800ee14efb1624fb7edaa371e4d864aad5606455a8a06d9bdefafe4578fc
[INFO] running `Command { std: "docker" "start" "-a" "5a2e800ee14efb1624fb7edaa371e4d864aad5606455a8a06d9bdefafe4578fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking sugiura-hiromichi_mylibrary v1.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking clap v3.2.23
[INFO] [stderr]  Documenting sugiura-hiromichi_tp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(if_let_guard)]
[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 `sugiura-hiromichi_tp`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name sugiura_hiromichi_tp 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=7592e182feae87e7 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-c2354686fcef9c5a.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-cb99f8778613a658.rmeta --extern sugiura_hiromichi_mylibrary=/opt/rustwide/target/debug/deps/libsugiura_hiromichi_mylibrary-0b4ca89cfb34d8a9.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5a2e800ee14efb1624fb7edaa371e4d864aad5606455a8a06d9bdefafe4578fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2e800ee14efb1624fb7edaa371e4d864aad5606455a8a06d9bdefafe4578fc", kill_on_drop: false }`
[INFO] [stdout] 5a2e800ee14efb1624fb7edaa371e4d864aad5606455a8a06d9bdefafe4578fc
