[INFO] fetching crate underscore_args 0.1.2...
[INFO] documenting underscore_args-0.1.2 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate underscore_args 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate underscore_args 0.1.2 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 underscore_args 0.1.2
[INFO] finished tweaking crates.io crate underscore_args 0.1.2
[INFO] tweaked toml for crates.io crate underscore_args 0.1.2 written to /workspace/builds/worker-6-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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3e3d72c2aca305cce57363f2f1111ec6759470787537d54a71edbb290e3bfec2
[INFO] running `Command { std: "docker" "start" "-a" "3e3d72c2aca305cce57363f2f1111ec6759470787537d54a71edbb290e3bfec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e3d72c2aca305cce57363f2f1111ec6759470787537d54a71edbb290e3bfec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e3d72c2aca305cce57363f2f1111ec6759470787537d54a71edbb290e3bfec2", kill_on_drop: false }`
[INFO] [stdout] 3e3d72c2aca305cce57363f2f1111ec6759470787537d54a71edbb290e3bfec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9b6d550b34182648d79ad1fac7550b77bac61b7a9306c3812d94a7e76a144211
[INFO] running `Command { std: "docker" "start" "-a" "9b6d550b34182648d79ad1fac7550b77bac61b7a9306c3812d94a7e76a144211", kill_on_drop: false }`
[INFO] [stderr]  Documenting underscore_args v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing documentation for a macro
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | macro_rules! args {($x:ident ( $($y:ident : $z:expr),* $(,)* )) =>
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![deny(missing_docs)]
[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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(concat_idents)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning 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 `underscore_args`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name underscore_args src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=93b09d957ff039d4 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9b6d550b34182648d79ad1fac7550b77bac61b7a9306c3812d94a7e76a144211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6d550b34182648d79ad1fac7550b77bac61b7a9306c3812d94a7e76a144211", kill_on_drop: false }`
[INFO] [stdout] 9b6d550b34182648d79ad1fac7550b77bac61b7a9306c3812d94a7e76a144211
