[INFO] fetching crate debug_iterator 0.1.0...
[INFO] documenting debug_iterator-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate debug_iterator 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate debug_iterator 0.1.0 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 debug_iterator 0.1.0
[INFO] finished tweaking crates.io crate debug_iterator 0.1.0
[INFO] tweaked toml for crates.io crate debug_iterator 0.1.0 written to /workspace/builds/worker-6/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] d4701275c46adf47cabd5a7dda0f63d3fb69d9b553b0e9c999c8f865c5407637
[INFO] running `Command { std: "docker" "start" "-a" "d4701275c46adf47cabd5a7dda0f63d3fb69d9b553b0e9c999c8f865c5407637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4701275c46adf47cabd5a7dda0f63d3fb69d9b553b0e9c999c8f865c5407637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4701275c46adf47cabd5a7dda0f63d3fb69d9b553b0e9c999c8f865c5407637", kill_on_drop: false }`
[INFO] [stdout] d4701275c46adf47cabd5a7dda0f63d3fb69d9b553b0e9c999c8f865c5407637
[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] [stdout] f4701d16217ca2bc15251e3f22c2b4165df1d212941059fe0a14b91763720c3b
[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" "f4701d16217ca2bc15251e3f22c2b4165df1d212941059fe0a14b91763720c3b", kill_on_drop: false }`
[INFO] [stderr]  Documenting debug_iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0518]: attribute should be applied to function or closure
[INFO] [stdout]    --> src/lib.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         #[inline]
[INFO] [stdout]     |         ^^^^^^^^^ not a function or closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0518`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `debug_iterator`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name debug_iterator src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=902a74debf06e587 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f4701d16217ca2bc15251e3f22c2b4165df1d212941059fe0a14b91763720c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4701d16217ca2bc15251e3f22c2b4165df1d212941059fe0a14b91763720c3b", kill_on_drop: false }`
[INFO] [stdout] f4701d16217ca2bc15251e3f22c2b4165df1d212941059fe0a14b91763720c3b