[INFO] fetching crate rpa_enum 0.1.6...
[INFO] documenting rpa_enum-0.1.6 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate rpa_enum 0.1.6 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rpa_enum 0.1.6 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 rpa_enum 0.1.6
[INFO] finished tweaking crates.io crate rpa_enum 0.1.6
[INFO] tweaked toml for crates.io crate rpa_enum 0.1.6 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a2806b0c792956bd8cd24b853402a9e2e10f9d61b66305677dbb52bb1ef1fb98
[INFO] running `Command { std: "docker" "start" "-a" "a2806b0c792956bd8cd24b853402a9e2e10f9d61b66305677dbb52bb1ef1fb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2806b0c792956bd8cd24b853402a9e2e10f9d61b66305677dbb52bb1ef1fb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2806b0c792956bd8cd24b853402a9e2e10f9d61b66305677dbb52bb1ef1fb98", kill_on_drop: false }`
[INFO] [stdout] a2806b0c792956bd8cd24b853402a9e2e10f9d61b66305677dbb52bb1ef1fb98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9eb1dff24dc181df132c2217add9767a1a797432a1802215c158f9beaaeed8d7
[INFO] running `Command { std: "docker" "start" "-a" "9eb1dff24dc181df132c2217add9767a1a797432a1802215c158f9beaaeed8d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking unicode-ident v1.0.8
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking proc-macro2 v1.0.56
[INFO] [stderr]     Checking aho-corasick v1.0.1
[INFO] [stderr]     Checking quote v1.0.26
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking regex v1.8.1
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]  Documenting rpa_enum v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro_hygiene, decl_macro)]
[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 `rpa_enum`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name rpa_enum src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f5f1827a8de0478b -L dependency=/opt/rustwide/target/debug/deps --extern inflector=/opt/rustwide/target/debug/deps/libinflector-552cc7803466c373.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-51d880c542a9af92.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a52e91a248d06c41.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-1fb70c356fbccfb9.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.6` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9eb1dff24dc181df132c2217add9767a1a797432a1802215c158f9beaaeed8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb1dff24dc181df132c2217add9767a1a797432a1802215c158f9beaaeed8d7", kill_on_drop: false }`
[INFO] [stdout] 9eb1dff24dc181df132c2217add9767a1a797432a1802215c158f9beaaeed8d7
