[INFO] fetching crate namaste 0.23.1...
[INFO] documenting namaste-0.23.1 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate namaste 0.23.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate namaste 0.23.1 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 namaste 0.23.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate namaste 0.23.1
[INFO] tweaked toml for crates.io crate namaste 0.23.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate namaste 0.23.1 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 blackhole v0.20.2
[INFO] [stderr]   Downloaded zeros v16.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6f1d3dfac0131d3101ad30a98e4d2f0e9a4cebdd814fe328ecfada39b5b9ca44
[INFO] running `Command { std: "docker" "start" "-a" "6f1d3dfac0131d3101ad30a98e4d2f0e9a4cebdd814fe328ecfada39b5b9ca44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f1d3dfac0131d3101ad30a98e4d2f0e9a4cebdd814fe328ecfada39b5b9ca44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f1d3dfac0131d3101ad30a98e4d2f0e9a4cebdd814fe328ecfada39b5b9ca44", kill_on_drop: false }`
[INFO] [stdout] 6f1d3dfac0131d3101ad30a98e4d2f0e9a4cebdd814fe328ecfada39b5b9ca44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9a0b072afd3ddab86b88729461ad05bc734697330ecfb6d82a50dcbb727e0afc
[INFO] running `Command { std: "docker" "start" "-a" "9a0b072afd3ddab86b88729461ad05bc734697330ecfb6d82a50dcbb727e0afc", kill_on_drop: false }`
[INFO] [stderr]  Documenting namaste v0.23.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:64:90
[INFO] [stdout]    |
[INFO] [stdout] 64 | #![cfg_attr(any(target_os = "linux", target_os = "l4re", target_os = "android"), feature(unix_socket_abstract), feature(tcp_quickack))]
[INFO] [stdout]    |                                                                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:64:121
[INFO] [stdout]    |
[INFO] [stdout] 64 | #![cfg_attr(any(target_os = "linux", target_os = "l4re", target_os = "android"), feature(unix_socket_abstract), feature(tcp_quickack))]
[INFO] [stdout]    |                                                                                                                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:65:45
[INFO] [stdout]    |
[INFO] [stdout] 65 | #![cfg_attr(target_family = "unix", feature(unix_socket_ancillary_data))]
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `namaste`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name namaste src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=92741c60badc7466 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.23.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9a0b072afd3ddab86b88729461ad05bc734697330ecfb6d82a50dcbb727e0afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a0b072afd3ddab86b88729461ad05bc734697330ecfb6d82a50dcbb727e0afc", kill_on_drop: false }`
[INFO] [stdout] 9a0b072afd3ddab86b88729461ad05bc734697330ecfb6d82a50dcbb727e0afc
