[INFO] fetching crate libwebp 0.1.2...
[INFO] documenting libwebp-0.1.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate libwebp 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate libwebp 0.1.2 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 libwebp 0.1.2
[INFO] finished tweaking crates.io crate libwebp 0.1.2
[INFO] tweaked toml for crates.io crate libwebp 0.1.2 written to /workspace/builds/worker-12/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] be4e948435c57f0a99033a55594d04a1365dd77b69a1fdaaa7bcb439950e0502
[INFO] running `Command { std: "docker" "start" "-a" "be4e948435c57f0a99033a55594d04a1365dd77b69a1fdaaa7bcb439950e0502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be4e948435c57f0a99033a55594d04a1365dd77b69a1fdaaa7bcb439950e0502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be4e948435c57f0a99033a55594d04a1365dd77b69a1fdaaa7bcb439950e0502", kill_on_drop: false }`
[INFO] [stdout] be4e948435c57f0a99033a55594d04a1365dd77b69a1fdaaa7bcb439950e0502
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 5b8ce1447e9c5457602a2cd04e1a19444b6812ce286426af69974bb86616deb2
[INFO] running `Command { std: "docker" "start" "-a" "5b8ce1447e9c5457602a2cd04e1a19444b6812ce286426af69974bb86616deb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libwebp-sys2 v0.1.4
[INFO] [stderr]  Documenting libwebp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "5b8ce1447e9c5457602a2cd04e1a19444b6812ce286426af69974bb86616deb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8ce1447e9c5457602a2cd04e1a19444b6812ce286426af69974bb86616deb2", kill_on_drop: false }`
[INFO] [stdout] 5b8ce1447e9c5457602a2cd04e1a19444b6812ce286426af69974bb86616deb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "1_1 demux mux __doc_cfg extern-types" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 749f35359ebc18a58f44cf13f0237da9ba3dccc455fa26845f680e6ed7cf933e
[INFO] running `Command { std: "docker" "start" "-a" "749f35359ebc18a58f44cf13f0237da9ba3dccc455fa26845f680e6ed7cf933e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libwebp-sys2 v0.1.4
[INFO] [stderr]  Documenting libwebp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "749f35359ebc18a58f44cf13f0237da9ba3dccc455fa26845f680e6ed7cf933e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749f35359ebc18a58f44cf13f0237da9ba3dccc455fa26845f680e6ed7cf933e", kill_on_drop: false }`
[INFO] [stdout] 749f35359ebc18a58f44cf13f0237da9ba3dccc455fa26845f680e6ed7cf933e