[INFO] fetching crate itertools 0.10.3...
[INFO] documenting itertools-0.10.3 against master#e1df625306f4136949e02612406f0c60df6008f3 for pr-96676
[INFO] extracting crate itertools 0.10.3 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate itertools 0.10.3 on toolchain e1df625306f4136949e02612406f0c60df6008f3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1df625306f4136949e02612406f0c60df6008f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate itertools 0.10.3
[INFO] finished tweaking crates.io crate itertools 0.10.3
[INFO] tweaked toml for crates.io crate itertools 0.10.3 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] crate crates.io crate itertools 0.10.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1df625306f4136949e02612406f0c60df6008f3" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded permutohedron v0.2.4
[INFO] [stderr]   Downloaded cast v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+e1df625306f4136949e02612406f0c60df6008f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42f711b8bb55510a76b5ef906ff34af50d003420f1d3e213b5fafa00c61c9086
[INFO] running `Command { std: "docker" "start" "-a" "42f711b8bb55510a76b5ef906ff34af50d003420f1d3e213b5fafa00c61c9086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42f711b8bb55510a76b5ef906ff34af50d003420f1d3e213b5fafa00c61c9086", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f711b8bb55510a76b5ef906ff34af50d003420f1d3e213b5fafa00c61c9086", kill_on_drop: false }`
[INFO] [stdout] 42f711b8bb55510a76b5ef906ff34af50d003420f1d3e213b5fafa00c61c9086
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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=forbid" "-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" "+e1df625306f4136949e02612406f0c60df6008f3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06d1b81cc13db596c1fbcf1ed7257149739bc4b7030d5d9f69908b27a69334e2
[INFO] running `Command { std: "docker" "start" "-a" "06d1b81cc13db596c1fbcf1ed7257149739bc4b7030d5d9f69908b27a69334e2", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]  Documenting itertools v0.10.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]     --> src/lib.rs:2695:9
[INFO] [stdout]      |
[INFO] [stdout] 2695 |     /// ```
[INFO] [stdout]      |         ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]      |
[INFO] [stdout] 2695 |     /// ```text
[INFO] [stdout]      |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.17s
[INFO] running `Command { std: "docker" "inspect" "06d1b81cc13db596c1fbcf1ed7257149739bc4b7030d5d9f69908b27a69334e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d1b81cc13db596c1fbcf1ed7257149739bc4b7030d5d9f69908b27a69334e2", kill_on_drop: false }`
[INFO] [stdout] 06d1b81cc13db596c1fbcf1ed7257149739bc4b7030d5d9f69908b27a69334e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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=forbid" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+e1df625306f4136949e02612406f0c60df6008f3" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] faa6b4d0ba673e4d0d3fd4f302eec4a22eea949e44d397913cd2f919c8614042
[INFO] running `Command { std: "docker" "start" "-a" "faa6b4d0ba673e4d0d3fd4f302eec4a22eea949e44d397913cd2f919c8614042", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]  Documenting itertools v0.10.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]     --> src/lib.rs:2695:9
[INFO] [stdout]      |
[INFO] [stdout] 2695 |     /// ```
[INFO] [stdout]      |         ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]      |
[INFO] [stdout] 2695 |     /// ```text
[INFO] [stdout]      |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "faa6b4d0ba673e4d0d3fd4f302eec4a22eea949e44d397913cd2f919c8614042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faa6b4d0ba673e4d0d3fd4f302eec4a22eea949e44d397913cd2f919c8614042", kill_on_drop: false }`
[INFO] [stdout] faa6b4d0ba673e4d0d3fd4f302eec4a22eea949e44d397913cd2f919c8614042