[INFO] fetching crate twain_32-sys 0.0.1...
[INFO] documenting twain_32-sys-0.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate twain_32-sys 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate twain_32-sys 0.0.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twain_32-sys 0.0.1
[INFO] finished tweaking crates.io crate twain_32-sys 0.0.1
[INFO] tweaked toml for crates.io crate twain_32-sys 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fe843564a989e591855b7a68a47aa93d202f0d8051afc8da7257b7ca83f5918
[INFO] running `Command { std: "docker" "start" "-a" "4fe843564a989e591855b7a68a47aa93d202f0d8051afc8da7257b7ca83f5918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fe843564a989e591855b7a68a47aa93d202f0d8051afc8da7257b7ca83f5918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe843564a989e591855b7a68a47aa93d202f0d8051afc8da7257b7ca83f5918", kill_on_drop: false }`
[INFO] [stdout] 4fe843564a989e591855b7a68a47aa93d202f0d8051afc8da7257b7ca83f5918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 274d8c220b59dd35b0bfaf9e425b070d03e462eb3f23986eabf25f8467b1069f
[INFO] running `Command { std: "docker" "start" "-a" "274d8c220b59dd35b0bfaf9e425b070d03e462eb3f23986eabf25f8467b1069f", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling twain_32-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting twain_32-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 `twain_32-sys`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name twain_32_sys src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=93bd20c8cb1463cc -L dependency=/opt/rustwide/target/debug/deps --extern winapi=/opt/rustwide/target/debug/deps/libwinapi-91a155b03dfdb111.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "274d8c220b59dd35b0bfaf9e425b070d03e462eb3f23986eabf25f8467b1069f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274d8c220b59dd35b0bfaf9e425b070d03e462eb3f23986eabf25f8467b1069f", kill_on_drop: false }`
[INFO] [stdout] 274d8c220b59dd35b0bfaf9e425b070d03e462eb3f23986eabf25f8467b1069f