[INFO] fetching crate cult 0.0.3...
[INFO] documenting cult-0.0.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate cult 0.0.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cult 0.0.3 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cult 0.0.3
[INFO] finished tweaking crates.io crate cult 0.0.3
[INFO] tweaked toml for crates.io crate cult 0.0.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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" "+1.46.0" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "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] cc9a34e0a39fe472679a4666529d85bbb719d31c7293fe78651019572ce6261d
[INFO] running `Command { std: "docker" "start" "-a" "cc9a34e0a39fe472679a4666529d85bbb719d31c7293fe78651019572ce6261d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9a34e0a39fe472679a4666529d85bbb719d31c7293fe78651019572ce6261d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9a34e0a39fe472679a4666529d85bbb719d31c7293fe78651019572ce6261d", kill_on_drop: false }`
[INFO] [stdout] cc9a34e0a39fe472679a4666529d85bbb719d31c7293fe78651019572ce6261d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fc6212cb6eed794d2cf32f0eb0d7ec865ffe9044d11b37b7dc3838cc0fa1769
[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" "1fc6212cb6eed794d2cf32f0eb0d7ec865ffe9044d11b37b7dc3838cc0fa1769", kill_on_drop: false }`
[INFO] [stderr]  Documenting cult v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `AudioStream`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:69:34
[INFO] [stdout]    |
[INFO] [stdout] 69 |                        user_ptr: *const AudioStream) -> libc::c_int;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/lib.rs:87:1
[INFO] [stdout]    |
[INFO] [stdout] 87 | / pub struct AudioStream {
[INFO] [stdout] 88 | |   rate: u32,
[INFO] [stdout] 89 | |   format: CubebSampleFormat,
[INFO] [stdout] 90 | |   channels: u32,
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |   callback: DataCallback
[INFO] [stdout] 94 | | }
[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 1.27s
[INFO] running `Command { std: "docker" "inspect" "1fc6212cb6eed794d2cf32f0eb0d7ec865ffe9044d11b37b7dc3838cc0fa1769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc6212cb6eed794d2cf32f0eb0d7ec865ffe9044d11b37b7dc3838cc0fa1769", kill_on_drop: false }`
[INFO] [stdout] 1fc6212cb6eed794d2cf32f0eb0d7ec865ffe9044d11b37b7dc3838cc0fa1769