[INFO] fetching crate lxd 0.1.8...
[INFO] documenting lxd-0.1.8 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate lxd 0.1.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate lxd 0.1.8 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 lxd 0.1.8
[INFO] finished tweaking crates.io crate lxd 0.1.8
[INFO] tweaked toml for crates.io crate lxd 0.1.8 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 2f3fe2c0e10b77e48bed9eb5f3e7f230c2b745c794c461d0e7ae9f8f9f004653
[INFO] running `Command { std: "docker" "start" "-a" "2f3fe2c0e10b77e48bed9eb5f3e7f230c2b745c794c461d0e7ae9f8f9f004653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f3fe2c0e10b77e48bed9eb5f3e7f230c2b745c794c461d0e7ae9f8f9f004653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f3fe2c0e10b77e48bed9eb5f3e7f230c2b745c794c461d0e7ae9f8f9f004653", kill_on_drop: false }`
[INFO] [stdout] 2f3fe2c0e10b77e48bed9eb5f3e7f230c2b745c794c461d0e7ae9f8f9f004653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7806ac9d3d511f78c02e7c5f191f48e925a0c91276346ed0c248ea65a0c4a9b2
[INFO] running `Command { std: "docker" "start" "-a" "7806ac9d3d511f78c02e7c5f191f48e925a0c91276346ed0c248ea65a0c4a9b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]  Documenting lxd v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> src/image.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     /// ```
[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] 77 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> src/snapshot.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     /// ```
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 25 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.71s
[INFO] running `Command { std: "docker" "inspect" "7806ac9d3d511f78c02e7c5f191f48e925a0c91276346ed0c248ea65a0c4a9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7806ac9d3d511f78c02e7c5f191f48e925a0c91276346ed0c248ea65a0c4a9b2", kill_on_drop: false }`
[INFO] [stdout] 7806ac9d3d511f78c02e7c5f191f48e925a0c91276346ed0c248ea65a0c4a9b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 98df4ec5346af9a504c51f369c9f29ddd3ade2940984e29d2a3c594fe6c01d77
[INFO] running `Command { std: "docker" "start" "-a" "98df4ec5346af9a504c51f369c9f29ddd3ade2940984e29d2a3c594fe6c01d77", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]  Documenting lxd v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> src/image.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |     /// ```
[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] 77 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]   --> src/snapshot.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     /// ```
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]    |
[INFO] [stdout] 25 |     /// ```text
[INFO] [stdout]    |            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.60s
[INFO] running `Command { std: "docker" "inspect" "98df4ec5346af9a504c51f369c9f29ddd3ade2940984e29d2a3c594fe6c01d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98df4ec5346af9a504c51f369c9f29ddd3ade2940984e29d2a3c594fe6c01d77", kill_on_drop: false }`
[INFO] [stdout] 98df4ec5346af9a504c51f369c9f29ddd3ade2940984e29d2a3c594fe6c01d77