[INFO] fetching crate rustdx 0.4.0...
[INFO] documenting rustdx-0.4.0 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate rustdx 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate rustdx 0.4.0 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 rustdx 0.4.0
[INFO] finished tweaking crates.io crate rustdx 0.4.0
[INFO] tweaked toml for crates.io crate rustdx 0.4.0 written to /workspace/builds/worker-5-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 95b452390412d032783d12a954dc8d656d5b7f711a8dda35f0f7334b93c4a94f
[INFO] running `Command { std: "docker" "start" "-a" "95b452390412d032783d12a954dc8d656d5b7f711a8dda35f0f7334b93c4a94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95b452390412d032783d12a954dc8d656d5b7f711a8dda35f0f7334b93c4a94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b452390412d032783d12a954dc8d656d5b7f711a8dda35f0f7334b93c4a94f", kill_on_drop: false }`
[INFO] [stdout] 95b452390412d032783d12a954dc8d656d5b7f711a8dda35f0f7334b93c4a94f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 86f36f17b50e8ed6dcebe8dc2bbca6aa95c3a663aa762b90d261cda221f5bb5e
[INFO] running `Command { std: "docker" "start" "-a" "86f36f17b50e8ed6dcebe8dc2bbca6aa95c3a663aa762b90d261cda221f5bb5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking iana-time-zone v0.1.56
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]  Documenting rustdx v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(doc_auto_cfg)]
[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 `rustdx`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name rustdx src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ee657da097cd0147 -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-b85e58f79d8bd9cd.rmeta --extern encoding_rs=/opt/rustwide/target/debug/deps/libencoding_rs-e1a6b56fb8e986a7.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-3e075563a9423780.rmeta --extern miniz_oxide=/opt/rustwide/target/debug/deps/libminiz_oxide-d7057053fa9c4782.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e83dc2406577e617.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-705b1543009c39ba.rmeta --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "86f36f17b50e8ed6dcebe8dc2bbca6aa95c3a663aa762b90d261cda221f5bb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f36f17b50e8ed6dcebe8dc2bbca6aa95c3a663aa762b90d261cda221f5bb5e", kill_on_drop: false }`
[INFO] [stdout] 86f36f17b50e8ed6dcebe8dc2bbca6aa95c3a663aa762b90d261cda221f5bb5e
