[INFO] crate ripb 0.3.1 is already in cache
[INFO] documenting ripb-0.3.1 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate ripb 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ripb 0.3.1 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ripb 0.3.1
[INFO] finished tweaking crates.io crate ripb 0.3.1
[INFO] tweaked toml for crates.io crate ripb 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 706e0add12f110af0cc9d3b3451b420980c52d112765eb5b494626154c684f4a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "706e0add12f110af0cc9d3b3451b420980c52d112765eb5b494626154c684f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "706e0add12f110af0cc9d3b3451b420980c52d112765eb5b494626154c684f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706e0add12f110af0cc9d3b3451b420980c52d112765eb5b494626154c684f4a", kill_on_drop: false }`
[INFO] [stdout] 706e0add12f110af0cc9d3b3451b420980c52d112765eb5b494626154c684f4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f85e21f47373db8683aeb87fe1c2eed88ed8ff78ba2566d082facbad9b1e9df5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f85e21f47373db8683aeb87fe1c2eed88ed8ff78ba2566d082facbad9b1e9df5", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]  Documenting ripb v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[new]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:27:36
[INFO] [stdout]    |
[INFO] [stdout] 27 | /// You can create a bus with the [`new`] method, then create new [`Subscriber`]s with the
[INFO] [stdout]    |                                    ^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[create_subscriber]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | /// [`create_subscriber`] method, and push some messages on the bus with the [`publish`] method.
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[publish]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:28:79
[INFO] [stdout]    |
[INFO] [stdout] 28 | /// [`create_subscriber`] method, and push some messages on the bus with the [`publish`] method.
[INFO] [stdout]    |                                                                               ^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[clone]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:29:58
[INFO] [stdout]    |
[INFO] [stdout] 29 | /// If you need to send messages from multiple threads, [`clone`] the bus and use one instance per
[INFO] [stdout]    |                                                          ^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[on_message]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:41:38
[INFO] [stdout]    |
[INFO] [stdout] 41 | /// Register new callbacks with the [`on_message`] method, callback will live until the subscriber
[INFO] [stdout]    |                                      ^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[on_message_with_token]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:42:69
[INFO] [stdout]    |
[INFO] [stdout] 42 | /// is dropped. If you need more control on callback lifecycle use [`on_message_with_token`] that
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[unsubscribe]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:43:59
[INFO] [stdout]    |
[INFO] [stdout] 43 | /// will give you a [`SubscriptionToken`] you can use to [`unsubscribe`] a callback.
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "f85e21f47373db8683aeb87fe1c2eed88ed8ff78ba2566d082facbad9b1e9df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f85e21f47373db8683aeb87fe1c2eed88ed8ff78ba2566d082facbad9b1e9df5", kill_on_drop: false }`
[INFO] [stdout] f85e21f47373db8683aeb87fe1c2eed88ed8ff78ba2566d082facbad9b1e9df5