[INFO] fetching crate parallel 0.11.3...
[INFO] documenting parallel-0.11.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate parallel 0.11.3 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate parallel 0.11.3 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 parallel 0.11.3
[INFO] finished tweaking crates.io crate parallel 0.11.3
[INFO] tweaked toml for crates.io crate parallel 0.11.3 written to /workspace/builds/worker-10/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] 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" "+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] b01fb4227c92950e6cb6f236fdd9a13f43ac256eac183878d94d7aa5d38783a0
[INFO] running `Command { std: "docker" "start" "-a" "b01fb4227c92950e6cb6f236fdd9a13f43ac256eac183878d94d7aa5d38783a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b01fb4227c92950e6cb6f236fdd9a13f43ac256eac183878d94d7aa5d38783a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b01fb4227c92950e6cb6f236fdd9a13f43ac256eac183878d94d7aa5d38783a0", kill_on_drop: false }`
[INFO] [stdout] b01fb4227c92950e6cb6f236fdd9a13f43ac256eac183878d94d7aa5d38783a0
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] e28d7a6e0d746bd0664831dd6034211578638fe51997aebfffe1df6225fa6b1e
[INFO] running `Command { std: "docker" "start" "-a" "e28d7a6e0d746bd0664831dd6034211578638fe51997aebfffe1df6225fa6b1e", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.0.7
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking permutate v0.3.2
[INFO] [stderr]    Compiling sys-info v0.4.1
[INFO] [stderr]     Checking wait-timeout v0.1.5
[INFO] [stderr]  Documenting parallel v0.11.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/input_iterator/lock.rs:22:62
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn try_next(&mut self, input: &mut String) -> Option<(usize)> {
[INFO] [stdout]    |                                                              ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "e28d7a6e0d746bd0664831dd6034211578638fe51997aebfffe1df6225fa6b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28d7a6e0d746bd0664831dd6034211578638fe51997aebfffe1df6225fa6b1e", kill_on_drop: false }`
[INFO] [stdout] e28d7a6e0d746bd0664831dd6034211578638fe51997aebfffe1df6225fa6b1e