[INFO] fetching crate ladspa_noisecoring 1.0.0...
[INFO] documenting ladspa_noisecoring-1.0.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate ladspa_noisecoring 1.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ladspa_noisecoring 1.0.0 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 ladspa_noisecoring 1.0.0
[INFO] finished tweaking crates.io crate ladspa_noisecoring 1.0.0
[INFO] tweaked toml for crates.io crate ladspa_noisecoring 1.0.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] da1dce825776f1450c95027908def5a2c213f7783b3a648d9be81490011b87c9
[INFO] running `Command { std: "docker" "start" "-a" "da1dce825776f1450c95027908def5a2c213f7783b3a648d9be81490011b87c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da1dce825776f1450c95027908def5a2c213f7783b3a648d9be81490011b87c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1dce825776f1450c95027908def5a2c213f7783b3a648d9be81490011b87c9", kill_on_drop: false }`
[INFO] [stdout] da1dce825776f1450c95027908def5a2c213f7783b3a648d9be81490011b87c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 56243660b5ce194cf879b24f2beb38ba86af261e747e325c7ce91c6757dfb432
[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" "56243660b5ce194cf879b24f2beb38ba86af261e747e325c7ce91c6757dfb432", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking rustfft v2.1.0
[INFO] [stderr]     Checking ladspa v0.3.4
[INFO] [stderr]  Documenting ladspa_noisecoring v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `std::option::Option<ladspa::PluginDescriptor>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:603:53
[INFO] [stdout]     |
[INFO] [stdout] 603 | pub extern fn get_ladspa_descriptor (index: u64) -> Option<PluginDescriptor>
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "56243660b5ce194cf879b24f2beb38ba86af261e747e325c7ce91c6757dfb432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56243660b5ce194cf879b24f2beb38ba86af261e747e325c7ce91c6757dfb432", kill_on_drop: false }`
[INFO] [stdout] 56243660b5ce194cf879b24f2beb38ba86af261e747e325c7ce91c6757dfb432