[INFO] fetching crate futures-util 0.3.16...
[INFO] documenting futures-util-0.3.16 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate futures-util 0.3.16 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate futures-util 0.3.16 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 futures-util 0.3.16
[INFO] finished tweaking crates.io crate futures-util 0.3.16
[INFO] tweaked toml for crates.io crate futures-util 0.3.16 written to /workspace/builds/worker-16/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-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 994fae1d16d052c20df183b3977cd6721814bc7f753f4cb1f86b922031c07b2c
[INFO] running `Command { std: "docker" "start" "-a" "994fae1d16d052c20df183b3977cd6721814bc7f753f4cb1f86b922031c07b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "994fae1d16d052c20df183b3977cd6721814bc7f753f4cb1f86b922031c07b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994fae1d16d052c20df183b3977cd6721814bc7f753f4cb1f86b922031c07b2c", kill_on_drop: false }`
[INFO] [stdout] 994fae1d16d052c20df183b3977cd6721814bc7f753f4cb1f86b922031c07b2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] c6128c96552efc6e17ae754a21f60bba78ab29986db8ae12625a226a4e5039ef
[INFO] running `Command { std: "docker" "start" "-a" "c6128c96552efc6e17ae754a21f60bba78ab29986db8ae12625a226a4e5039ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]  Documenting futures-util v0.3.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]   --> src/task/spawn.rs:27:43
[INFO] [stdout]    |
[INFO] [stdout] 27 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]    --> src/task/spawn.rs:104:43
[INFO] [stdout]     |
[INFO] [stdout] 104 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]   --> src/task/spawn.rs:27:43
[INFO] [stdout]    |
[INFO] [stdout] 27 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.07s
[INFO] running `Command { std: "docker" "inspect" "c6128c96552efc6e17ae754a21f60bba78ab29986db8ae12625a226a4e5039ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6128c96552efc6e17ae754a21f60bba78ab29986db8ae12625a226a4e5039ef", kill_on_drop: false }`
[INFO] [stdout] c6128c96552efc6e17ae754a21f60bba78ab29986db8ae12625a226a4e5039ef
