[INFO] fetching crate crossbeam-epoch 0.9.8...
[INFO] documenting crossbeam-epoch-0.9.8 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate crossbeam-epoch 0.9.8 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate crossbeam-epoch 0.9.8 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 crossbeam-epoch 0.9.8
[INFO] finished tweaking crates.io crate crossbeam-epoch 0.9.8
[INFO] tweaked toml for crates.io crate crossbeam-epoch 0.9.8 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate crossbeam-epoch 0.9.8 already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3ad95e681146b1bcc3fc25b8a6593f16c22e84302bdd2da85d24fa876f0b53d9
[INFO] running `Command { std: "docker" "start" "-a" "3ad95e681146b1bcc3fc25b8a6593f16c22e84302bdd2da85d24fa876f0b53d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ad95e681146b1bcc3fc25b8a6593f16c22e84302bdd2da85d24fa876f0b53d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad95e681146b1bcc3fc25b8a6593f16c22e84302bdd2da85d24fa876f0b53d9", kill_on_drop: false }`
[INFO] [stdout] 3ad95e681146b1bcc3fc25b8a6593f16c22e84302bdd2da85d24fa876f0b53d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed2957eed0e2f7fdd903b0223d46a14800e9c5b9ed404a786cb3ddbae5277b2a
[INFO] running `Command { std: "docker" "start" "-a" "ed2957eed0e2f7fdd903b0223d46a14800e9c5b9ed404a786cb3ddbae5277b2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting crossbeam-epoch v0.9.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/atomic.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 |   /// ```
[INFO] [stdout]     |  _____^
[INFO] [stdout] 236 | | ///
[INFO] [stdout]     | |_
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 235 | /// ```text
[INFO] [stdout]     |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.02s
[INFO] running `Command { std: "docker" "inspect" "ed2957eed0e2f7fdd903b0223d46a14800e9c5b9ed404a786cb3ddbae5277b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed2957eed0e2f7fdd903b0223d46a14800e9c5b9ed404a786cb3ddbae5277b2a", kill_on_drop: false }`
[INFO] [stdout] ed2957eed0e2f7fdd903b0223d46a14800e9c5b9ed404a786cb3ddbae5277b2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 02eef96215437599b897970d4492cdf10531f844aea57d285e3af4a86a3f9f13
[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" "02eef96215437599b897970d4492cdf10531f844aea57d285e3af4a86a3f9f13", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting crossbeam-epoch v0.9.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/atomic.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 |   /// ```
[INFO] [stdout]     |  _____^
[INFO] [stdout] 236 | | ///
[INFO] [stdout]     | |_
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::invalid_rust_codeblocks)]` on by default
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 235 | /// ```text
[INFO] [stdout]     |        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.89s
[INFO] running `Command { std: "docker" "inspect" "02eef96215437599b897970d4492cdf10531f844aea57d285e3af4a86a3f9f13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02eef96215437599b897970d4492cdf10531f844aea57d285e3af4a86a3f9f13", kill_on_drop: false }`
[INFO] [stdout] 02eef96215437599b897970d4492cdf10531f844aea57d285e3af4a86a3f9f13