[INFO] fetching crate futures-executor 0.3.21...
[INFO] documenting futures-executor-0.3.21 against beta-2022-05-20 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 beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "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" "+beta-2022-05-20" "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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aaa9dbc79522ed91badfc7f841660cf340a67d751fe7b70bace9f87d82c01cc
[INFO] running `Command { std: "docker" "start" "-a" "2aaa9dbc79522ed91badfc7f841660cf340a67d751fe7b70bace9f87d82c01cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aaa9dbc79522ed91badfc7f841660cf340a67d751fe7b70bace9f87d82c01cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aaa9dbc79522ed91badfc7f841660cf340a67d751fe7b70bace9f87d82c01cc", kill_on_drop: false }`
[INFO] [stdout] 2aaa9dbc79522ed91badfc7f841660cf340a67d751fe7b70bace9f87d82c01cc
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40d611911a9ea0c6e1fb5507def8dd01fd71acf2345b01ff29b57b94d3ee2c8f
[INFO] running `Command { std: "docker" "start" "-a" "40d611911a9ea0c6e1fb5507def8dd01fd71acf2345b01ff29b57b94d3ee2c8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]  Documenting futures-executor v0.3.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.22s
[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] [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] 
[INFO] running `Command { std: "docker" "inspect" "40d611911a9ea0c6e1fb5507def8dd01fd71acf2345b01ff29b57b94d3ee2c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d611911a9ea0c6e1fb5507def8dd01fd71acf2345b01ff29b57b94d3ee2c8f", kill_on_drop: false }`
[INFO] [stdout] 40d611911a9ea0c6e1fb5507def8dd01fd71acf2345b01ff29b57b94d3ee2c8f
[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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] a0a863187edaa985a91e287ee4844e572720b3f0b4c2724cf4b1718d1baf6194
[INFO] running `Command { std: "docker" "start" "-a" "a0a863187edaa985a91e287ee4844e572720b3f0b4c2724cf4b1718d1baf6194", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]  Documenting futures-executor v0.3.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `Command { std: "docker" "inspect" "a0a863187edaa985a91e287ee4844e572720b3f0b4c2724cf4b1718d1baf6194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a863187edaa985a91e287ee4844e572720b3f0b4c2724cf4b1718d1baf6194", kill_on_drop: false }`
[INFO] [stdout] a0a863187edaa985a91e287ee4844e572720b3f0b4c2724cf4b1718d1baf6194