[INFO] fetching crate httprouter 0.5.0...
[INFO] documenting httprouter-0.5.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate httprouter 0.5.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate httprouter 0.5.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate httprouter 0.5.0
[INFO] finished tweaking crates.io crate httprouter 0.5.0
[INFO] tweaked toml for crates.io crate httprouter 0.5.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d7476e1be070124c69306ea73d86d6e2e5916bd5f34c7d170b692aeb2aa178e
[INFO] running `Command { std: "docker" "start" "-a" "1d7476e1be070124c69306ea73d86d6e2e5916bd5f34c7d170b692aeb2aa178e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d7476e1be070124c69306ea73d86d6e2e5916bd5f34c7d170b692aeb2aa178e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d7476e1be070124c69306ea73d86d6e2e5916bd5f34c7d170b692aeb2aa178e", kill_on_drop: false }`
[INFO] [stdout] 1d7476e1be070124c69306ea73d86d6e2e5916bd5f34c7d170b692aeb2aa178e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6233b59ed47d0e7fb9c67b14a233f98fb03bf4d603ae730cb665036de35460b4
[INFO] running `Command { std: "docker" "start" "-a" "6233b59ed47d0e7fb9c67b14a233f98fb03bf4d603ae730cb665036de35460b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking matchit v0.3.2
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking hyper v0.14.11
[INFO] [stderr]  Documenting httprouter v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/lib.rs:190:5
[INFO] [stdout]     |
[INFO] [stdout] 190 |   //! ```rust
[INFO] [stdout]     |  _____^
[INFO] [stdout] 191 | | //! // TODO
[INFO] [stdout] 192 | | //! ```
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.40s
[INFO] running `Command { std: "docker" "inspect" "6233b59ed47d0e7fb9c67b14a233f98fb03bf4d603ae730cb665036de35460b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6233b59ed47d0e7fb9c67b14a233f98fb03bf4d603ae730cb665036de35460b4", kill_on_drop: false }`
[INFO] [stdout] 6233b59ed47d0e7fb9c67b14a233f98fb03bf4d603ae730cb665036de35460b4
