[INFO] fetching crate cobalt 0.22.0...
[INFO] documenting cobalt-0.22.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate cobalt 0.22.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cobalt 0.22.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cobalt 0.22.0
[INFO] finished tweaking crates.io crate cobalt 0.22.0
[INFO] tweaked toml for crates.io crate cobalt 0.22.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 979c2c320ee6afc05b43806fc4feca860f1cd1458c83528c902bebca5d42e612
[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" "979c2c320ee6afc05b43806fc4feca860f1cd1458c83528c902bebca5d42e612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "979c2c320ee6afc05b43806fc4feca860f1cd1458c83528c902bebca5d42e612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979c2c320ee6afc05b43806fc4feca860f1cd1458c83528c902bebca5d42e612", kill_on_drop: false }`
[INFO] [stdout] 979c2c320ee6afc05b43806fc4feca860f1cd1458c83528c902bebca5d42e612
[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" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52ba64f98043b1319f71d1c88382e4790ec40afd52d9c46ed8e86c97e80b097e
[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" "52ba64f98043b1319f71d1c88382e4790ec40afd52d9c46ed8e86c97e80b097e", kill_on_drop: false }`
[INFO] [stderr]  Documenting cobalt v0.22.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/shared/binary_rate_limiter.rs:165:45
[INFO] [stdout]     |
[INFO] [stdout] 165 |         self.last_bad_time = Instant::now();;
[INFO] [stdout]     |                                             ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/shared/connection.rs:425:25
[INFO] [stdout]     |
[INFO] [stdout] 425 |                         (cmp::max(self.last_receive_time - ack.time, tick_delay) - tick_delay)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "52ba64f98043b1319f71d1c88382e4790ec40afd52d9c46ed8e86c97e80b097e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ba64f98043b1319f71d1c88382e4790ec40afd52d9c46ed8e86c97e80b097e", kill_on_drop: false }`
[INFO] [stdout] 52ba64f98043b1319f71d1c88382e4790ec40afd52d9c46ed8e86c97e80b097e
