[INFO] fetching crate io-read-line-prototype 1.0.1...
[INFO] documenting io-read-line-prototype-1.0.1 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate io-read-line-prototype 1.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate io-read-line-prototype 1.0.1 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 io-read-line-prototype 1.0.1
[INFO] finished tweaking crates.io crate io-read-line-prototype 1.0.1
[INFO] tweaked toml for crates.io crate io-read-line-prototype 1.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c1958b9baceda9718b60b6356ad630a7e6f460415653b59c4ed18e9750e0fb0c
[INFO] running `Command { std: "docker" "start" "-a" "c1958b9baceda9718b60b6356ad630a7e6f460415653b59c4ed18e9750e0fb0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1958b9baceda9718b60b6356ad630a7e6f460415653b59c4ed18e9750e0fb0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1958b9baceda9718b60b6356ad630a7e6f460415653b59c4ed18e9750e0fb0c", kill_on_drop: false }`
[INFO] [stdout] c1958b9baceda9718b60b6356ad630a7e6f460415653b59c4ed18e9750e0fb0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ab8989be5d2b656084861ffbe2c7cf848b9bbd358d63309a5f2a023f189c4e77
[INFO] running `Command { std: "docker" "start" "-a" "ab8989be5d2b656084861ffbe2c7cf848b9bbd358d63309a5f2a023f189c4e77", kill_on_drop: false }`
[INFO] [stderr]  Documenting io-read-line-prototype v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `rustdoc::missing_doc_code_examples`
[INFO] [stdout]   --> src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![warn(missing_docs, missing_doc_code_examples, unreachable_pub)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the `rustdoc::missing_doc_code_examples` lint is unstable
[INFO] [stdout]    = note: see issue #101730 <https://github.com/rust-lang/rust/issues/101730> for more information
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![feature(min_specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `missing_doc_code_examples` has been renamed to `rustdoc::missing_doc_code_examples`
[INFO] [stdout]   --> src/lib.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![warn(missing_docs, missing_doc_code_examples, unreachable_pub)]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::missing_doc_code_examples`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `io-read-line-prototype`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name io_read_line_prototype src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d227006531b8161f -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 1.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ab8989be5d2b656084861ffbe2c7cf848b9bbd358d63309a5f2a023f189c4e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab8989be5d2b656084861ffbe2c7cf848b9bbd358d63309a5f2a023f189c4e77", kill_on_drop: false }`
[INFO] [stdout] ab8989be5d2b656084861ffbe2c7cf848b9bbd358d63309a5f2a023f189c4e77
