[INFO] fetching crate ffmpeg 0.2.0-alpha.1...
[INFO] documenting ffmpeg-0.2.0-alpha.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate ffmpeg 0.2.0-alpha.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ffmpeg 0.2.0-alpha.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffmpeg 0.2.0-alpha.1
[INFO] finished tweaking crates.io crate ffmpeg 0.2.0-alpha.1
[INFO] tweaked toml for crates.io crate ffmpeg 0.2.0-alpha.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ffmpeg-sys v2.8.9
[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" "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" "+beta-2020-08-29" "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] 48924aac93bea5a727d8c498f31a619a8297fb748848a9b178500eadba663506
[INFO] running `Command { std: "docker" "start" "-a" "48924aac93bea5a727d8c498f31a619a8297fb748848a9b178500eadba663506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48924aac93bea5a727d8c498f31a619a8297fb748848a9b178500eadba663506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48924aac93bea5a727d8c498f31a619a8297fb748848a9b178500eadba663506", kill_on_drop: false }`
[INFO] [stdout] 48924aac93bea5a727d8c498f31a619a8297fb748848a9b178500eadba663506
[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" "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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ff7393a515dc4e9d49344263fdb2bcc9505b968be2df5e05d6fb2565f6d6b5c
[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" "4ff7393a515dc4e9d49344263fdb2bcc9505b968be2df5e05d6fb2565f6d6b5c", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling ffmpeg-sys v2.8.9
[INFO] [stderr]  Documenting ffmpeg v0.2.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/util/frame/video.rs:58:60
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 format::Pixel::from(mem::transmute::<_, AVPixelFormat>(((*self.as_ptr()).format)))
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/util/frame/audio.rs:55:62
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 format::Sample::from(mem::transmute::<_, AVSampleFormat>(((*self.as_ptr()).format)))
[INFO] [stdout]    |                                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/filter/graph.rs:89:52
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let cstr   = from_utf8_unchecked(CStr::from_ptr((ptr)).to_bytes());
[INFO] [stdout]    |                                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.78s
[INFO] running `Command { std: "docker" "inspect" "4ff7393a515dc4e9d49344263fdb2bcc9505b968be2df5e05d6fb2565f6d6b5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff7393a515dc4e9d49344263fdb2bcc9505b968be2df5e05d6fb2565f6d6b5c", kill_on_drop: false }`
[INFO] [stdout] 4ff7393a515dc4e9d49344263fdb2bcc9505b968be2df5e05d6fb2565f6d6b5c