[INFO] fetching crate jobsteal 0.5.1...
[INFO] documenting jobsteal-0.5.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate jobsteal 0.5.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate jobsteal 0.5.1 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 jobsteal 0.5.1
[INFO] finished tweaking crates.io crate jobsteal 0.5.1
[INFO] tweaked toml for crates.io crate jobsteal 0.5.1 written to /workspace/builds/worker-2/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] 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 0cfda0822b9d54042f61498827b21e6fed704d187e243de6b4b420d9547840d0
[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" "0cfda0822b9d54042f61498827b21e6fed704d187e243de6b4b420d9547840d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cfda0822b9d54042f61498827b21e6fed704d187e243de6b4b420d9547840d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cfda0822b9d54042f61498827b21e6fed704d187e243de6b4b420d9547840d0", kill_on_drop: false }`
[INFO] [stdout] 0cfda0822b9d54042f61498827b21e6fed704d187e243de6b4b420d9547840d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 61fd9fa9d1701c395076d26cc5f80b9f81e7dda143b0173cf2320d5bda803df4
[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" "61fd9fa9d1701c395076d26cc5f80b9f81e7dda143b0173cf2320d5bda803df4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting jobsteal v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/iter/map.rs:86:30
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn call<I: Iterator<Item=(&'a U)>>(self, iter: I) -> Self::Out {
[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 type
[INFO] [stdout]   --> src/iter/map.rs:92:28
[INFO] [stdout]    |
[INFO] [stdout] 92 | where T: Consumer<In, Item=(&'a U)> {
[INFO] [stdout]    |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/iter/map.rs:100:80
[INFO] [stdout]     |
[INFO] [stdout] 100 | impl<'a, T, U: Clone + 'a> Spliterator for Cloned<T> where T: Spliterator<Item=(&'a U)> {
[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 2.55s
[INFO] running `Command { std: "docker" "inspect" "61fd9fa9d1701c395076d26cc5f80b9f81e7dda143b0173cf2320d5bda803df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61fd9fa9d1701c395076d26cc5f80b9f81e7dda143b0173cf2320d5bda803df4", kill_on_drop: false }`
[INFO] [stdout] 61fd9fa9d1701c395076d26cc5f80b9f81e7dda143b0173cf2320d5bda803df4