[INFO] fetching crate rustc-ap-rustc_cratesio_shim 520.0.0...
[INFO] documenting rustc-ap-rustc_cratesio_shim-520.0.0 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate rustc-ap-rustc_cratesio_shim 520.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate rustc-ap-rustc_cratesio_shim 520.0.0 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 rustc-ap-rustc_cratesio_shim 520.0.0
[INFO] finished tweaking crates.io crate rustc-ap-rustc_cratesio_shim 520.0.0
[INFO] tweaked toml for crates.io crate rustc-ap-rustc_cratesio_shim 520.0.0 written to /workspace/builds/worker-7-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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3bdafdcdeda24373e671be14569e689928ab30faab92d39e8cfc7fb525c4986f
[INFO] running `Command { std: "docker" "start" "-a" "3bdafdcdeda24373e671be14569e689928ab30faab92d39e8cfc7fb525c4986f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bdafdcdeda24373e671be14569e689928ab30faab92d39e8cfc7fb525c4986f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdafdcdeda24373e671be14569e689928ab30faab92d39e8cfc7fb525c4986f", kill_on_drop: false }`
[INFO] [stdout] 3bdafdcdeda24373e671be14569e689928ab30faab92d39e8cfc7fb525c4986f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 627ffb8a43f13cadf863e76fdf34e42280898a963b55f5e8d44cc3ae6f17cd02
[INFO] running `Command { std: "docker" "start" "-a" "627ffb8a43f13cadf863e76fdf34e42280898a963b55f5e8d44cc3ae6f17cd02", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]  Documenting rustc-ap-rustc_cratesio_shim v520.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `nll` has been stable since `1.63.0` and no longer requires an attribute to enable
[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 `rustc-ap-rustc_cratesio_shim`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rustc_cratesio_shim src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4bb9092dce93485f -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-3e075563a9423780.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-4fb61ec93b76b201.rmeta --cap-lints=warn --crate-version 520.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "627ffb8a43f13cadf863e76fdf34e42280898a963b55f5e8d44cc3ae6f17cd02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627ffb8a43f13cadf863e76fdf34e42280898a963b55f5e8d44cc3ae6f17cd02", kill_on_drop: false }`
[INFO] [stdout] 627ffb8a43f13cadf863e76fdf34e42280898a963b55f5e8d44cc3ae6f17cd02
