[INFO] fetching crate slcext-sys 0.0.1...
[INFO] documenting slcext-sys-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate slcext-sys 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate slcext-sys 0.0.1 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slcext-sys 0.0.1
[INFO] finished tweaking crates.io crate slcext-sys 0.0.1
[INFO] tweaked toml for crates.io crate slcext-sys 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 485f99e68cf4de13b98e47b9d1b0fe6a8324fb402ee0c16ec0282d5c3c2148df
[INFO] running `Command { std: "docker" "start" "-a" "485f99e68cf4de13b98e47b9d1b0fe6a8324fb402ee0c16ec0282d5c3c2148df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "485f99e68cf4de13b98e47b9d1b0fe6a8324fb402ee0c16ec0282d5c3c2148df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "485f99e68cf4de13b98e47b9d1b0fe6a8324fb402ee0c16ec0282d5c3c2148df", kill_on_drop: false }`
[INFO] [stdout] 485f99e68cf4de13b98e47b9d1b0fe6a8324fb402ee0c16ec0282d5c3c2148df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e60ff27ea988d12b628e6ef624b6c7b99f1e88a1162839bf4c326c9f7cfd46f5
[INFO] running `Command { std: "docker" "start" "-a" "e60ff27ea988d12b628e6ef624b6c7b99f1e88a1162839bf4c326c9f7cfd46f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling slcext-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting slcext-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/lib.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![experimental]
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `slcext-sys`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name slcext_sys src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c106dced8ab0dfb7 -L dependency=/opt/rustwide/target/debug/deps --extern winapi=/opt/rustwide/target/debug/deps/libwinapi-91beaac353f9aba6.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e60ff27ea988d12b628e6ef624b6c7b99f1e88a1162839bf4c326c9f7cfd46f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e60ff27ea988d12b628e6ef624b6c7b99f1e88a1162839bf4c326c9f7cfd46f5", kill_on_drop: false }`
[INFO] [stdout] e60ff27ea988d12b628e6ef624b6c7b99f1e88a1162839bf4c326c9f7cfd46f5