[INFO] fetching crate parallel 0.11.3...
[INFO] documenting parallel-0.11.3 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate parallel 0.11.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate parallel 0.11.3 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce472e0d9ceaf49587775a8c7d8a3a5991a6795e39e4f646b3cc1f10d3e9fe9f
[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" "ce472e0d9ceaf49587775a8c7d8a3a5991a6795e39e4f646b3cc1f10d3e9fe9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce472e0d9ceaf49587775a8c7d8a3a5991a6795e39e4f646b3cc1f10d3e9fe9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce472e0d9ceaf49587775a8c7d8a3a5991a6795e39e4f646b3cc1f10d3e9fe9f", kill_on_drop: false }`
[INFO] [stdout] ce472e0d9ceaf49587775a8c7d8a3a5991a6795e39e4f646b3cc1f10d3e9fe9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd26727ecc3fa945419f8228bf79bb0dd4c9ce40faa569f812ddbdbd9fea64e4
[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" "cd26727ecc3fa945419f8228bf79bb0dd4c9ce40faa569f812ddbdbd9fea64e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking permutate v0.3.2
[INFO] [stderr]     Checking numtoa v0.0.7
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking wait-timeout v0.1.5
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]    Compiling sys-info v0.4.1
[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 4.82s
[INFO] running `Command { std: "docker" "inspect" "cd26727ecc3fa945419f8228bf79bb0dd4c9ce40faa569f812ddbdbd9fea64e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd26727ecc3fa945419f8228bf79bb0dd4c9ce40faa569f812ddbdbd9fea64e4", kill_on_drop: false }`
[INFO] [stdout] cd26727ecc3fa945419f8228bf79bb0dd4c9ce40faa569f812ddbdbd9fea64e4
