[INFO] fetching crate net-utils 0.0.5...
[INFO] documenting net-utils-0.0.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate net-utils 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate net-utils 0.0.5 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 net-utils 0.0.5
[INFO] finished tweaking crates.io crate net-utils 0.0.5
[INFO] tweaked toml for crates.io crate net-utils 0.0.5 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 44632668bf39fef199e0f69a2a1724c98cca2ae01c4d9312160aabbb26d12cc4
[INFO] running `Command { std: "docker" "start" "-a" "44632668bf39fef199e0f69a2a1724c98cca2ae01c4d9312160aabbb26d12cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44632668bf39fef199e0f69a2a1724c98cca2ae01c4d9312160aabbb26d12cc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44632668bf39fef199e0f69a2a1724c98cca2ae01c4d9312160aabbb26d12cc4", kill_on_drop: false }`
[INFO] [stdout] 44632668bf39fef199e0f69a2a1724c98cca2ae01c4d9312160aabbb26d12cc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 569c03497eca971d4b887e6b36276b0db495538c545a1918b237f40e4b2e6083
[INFO] running `Command { std: "docker" "start" "-a" "569c03497eca971d4b887e6b36276b0db495538c545a1918b237f40e4b2e6083", kill_on_drop: false }`
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]  Documenting net-utils v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/net/conn.rs:361:47
[INFO] [stdout]     |
[INFO] [stdout] 361 |     fn write(&mut self, buf: &[u8]) -> Result<(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: missing documentation for an associated function
[INFO] [stdout]   --> src/net/conn.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn get_peer_address(&self) -> &String {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/net/conn.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn get_local_address(&self) -> &String {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "569c03497eca971d4b887e6b36276b0db495538c545a1918b237f40e4b2e6083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "569c03497eca971d4b887e6b36276b0db495538c545a1918b237f40e4b2e6083", kill_on_drop: false }`
[INFO] [stdout] 569c03497eca971d4b887e6b36276b0db495538c545a1918b237f40e4b2e6083