[INFO] crate utils 0.0.3 is already in cache
[INFO] documenting utils-0.0.3 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate utils 0.0.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate utils 0.0.3 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utils 0.0.3
[INFO] finished tweaking crates.io crate utils 0.0.3
[INFO] tweaked toml for crates.io crate utils 0.0.3 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b41de5affbde6b2f41cc5f2f033129c070039d97eb32282d5bd2bf5c2b61861
[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" "1b41de5affbde6b2f41cc5f2f033129c070039d97eb32282d5bd2bf5c2b61861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b41de5affbde6b2f41cc5f2f033129c070039d97eb32282d5bd2bf5c2b61861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b41de5affbde6b2f41cc5f2f033129c070039d97eb32282d5bd2bf5c2b61861", kill_on_drop: false }`
[INFO] [stdout] 1b41de5affbde6b2f41cc5f2f033129c070039d97eb32282d5bd2bf5c2b61861
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cac58e02c0d8c123ef98b2fdb49ecceec573c2ca62c944a61a4ab95f5abfe8c1
[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" "cac58e02c0d8c123ef98b2fdb49ecceec573c2ca62c944a61a4ab95f5abfe8c1", kill_on_drop: false }`
[INFO] [stderr]     Checking commandext v0.1.0
[INFO] [stderr]  Documenting utils v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/lib.rs:83:3
[INFO] [stdout]    |
[INFO] [stdout] 83 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/lib.rs:77:3
[INFO] [stdout]    |
[INFO] [stdout] 77 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/lib.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/lib.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/lib.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/empty.rs:63:3
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/empty.rs:45:3
[INFO] [stdout]    |
[INFO] [stdout] 45 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/empty.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/empty.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/empty.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]   --> src/empty.rs:14:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[experimental]
[INFO] [stdout]    |   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `utils`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name utils src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern commandext=/opt/rustwide/target/debug/deps/libcommandext-09b71a2036fb9159.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "cac58e02c0d8c123ef98b2fdb49ecceec573c2ca62c944a61a4ab95f5abfe8c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac58e02c0d8c123ef98b2fdb49ecceec573c2ca62c944a61a4ab95f5abfe8c1", kill_on_drop: false }`
[INFO] [stdout] cac58e02c0d8c123ef98b2fdb49ecceec573c2ca62c944a61a4ab95f5abfe8c1