[INFO] fetching crate futures-executor 0.3.21...
[INFO] documenting futures-executor-0.3.21 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate futures-executor 0.3.21 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate futures-executor 0.3.21 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 futures-executor 0.3.21
[INFO] finished tweaking crates.io crate futures-executor 0.3.21
[INFO] tweaked toml for crates.io crate futures-executor 0.3.21 written to /workspace/builds/worker-41/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] [stderr]     Blocking waiting for file lock on package cache
[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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 2338a248bc583a1a68f1158d655b2fd87166aa2eaa52e3e52059849c80c38827
[INFO] running `Command { std: "docker" "start" "-a" "2338a248bc583a1a68f1158d655b2fd87166aa2eaa52e3e52059849c80c38827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2338a248bc583a1a68f1158d655b2fd87166aa2eaa52e3e52059849c80c38827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2338a248bc583a1a68f1158d655b2fd87166aa2eaa52e3e52059849c80c38827", kill_on_drop: false }`
[INFO] [stdout] 2338a248bc583a1a68f1158d655b2fd87166aa2eaa52e3e52059849c80c38827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 67f92f3ea4b0b97e0154d953f893dc57fb0519d4216a9a8a7bd5dc5e58148644
[INFO] running `Command { std: "docker" "start" "-a" "67f92f3ea4b0b97e0154d953f893dc57fb0519d4216a9a8a7bd5dc5e58148644", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]  Documenting futures-executor v0.3.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `ThreadPool`
[INFO] [stdout]   --> src/lib.rs:12:66
[INFO] [stdout]    |
[INFO] [stdout] 12 | //! Most of the time tasks should be executed on a [thread pool](ThreadPool).
[INFO] [stdout]    |                                                                  ^^^^^^^^^^ no item named `ThreadPool` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] [stdout] warning: unresolved link to `ThreadPool::spawn_ok`
[INFO] [stdout]   --> src/lib.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 | //! with the [`spawn_ok`](ThreadPool::spawn_ok) function will run ambiently on
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^ no item named `ThreadPool` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "67f92f3ea4b0b97e0154d953f893dc57fb0519d4216a9a8a7bd5dc5e58148644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f92f3ea4b0b97e0154d953f893dc57fb0519d4216a9a8a7bd5dc5e58148644", kill_on_drop: false }`
[INFO] [stdout] 67f92f3ea4b0b97e0154d953f893dc57fb0519d4216a9a8a7bd5dc5e58148644