[INFO] fetching crate throttle-timer 1.0.0...
[INFO] documenting throttle-timer-1.0.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate throttle-timer 1.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate throttle-timer 1.0.0 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 throttle-timer 1.0.0
[INFO] finished tweaking crates.io crate throttle-timer 1.0.0
[INFO] tweaked toml for crates.io crate throttle-timer 1.0.0 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 252cab4697cfbb9d1d0667e579c2c0fba349eead51a28a3e2878ed76cb9b766e
[INFO] running `Command { std: "docker" "start" "-a" "252cab4697cfbb9d1d0667e579c2c0fba349eead51a28a3e2878ed76cb9b766e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "252cab4697cfbb9d1d0667e579c2c0fba349eead51a28a3e2878ed76cb9b766e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "252cab4697cfbb9d1d0667e579c2c0fba349eead51a28a3e2878ed76cb9b766e", kill_on_drop: false }`
[INFO] [stdout] 252cab4697cfbb9d1d0667e579c2c0fba349eead51a28a3e2878ed76cb9b766e
[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] f6a3d074aa399d25b0e6c2fd6b6f9d5b544c118c807d7842d355f764664d29a4
[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" "f6a3d074aa399d25b0e6c2fd6b6f9d5b544c118c807d7842d355f764664d29a4", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting throttle-timer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lib.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 | /                 (self.max_frequency
[INFO] [stdout] 97 | |                     - Instant::now()
[INFO] [stdout] 98 | |                         .duration_since(last_time)
[INFO] [stdout] 99 | |                         .min(self.max_frequency))
[INFO] [stdout]    | |_________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 self.max_frequency
[INFO] [stdout] 97 |                     - Instant::now()
[INFO] [stdout] 98 |                         .duration_since(last_time)
[INFO] [stdout] 99 |                         .min(self.max_frequency)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "f6a3d074aa399d25b0e6c2fd6b6f9d5b544c118c807d7842d355f764664d29a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a3d074aa399d25b0e6c2fd6b6f9d5b544c118c807d7842d355f764664d29a4", kill_on_drop: false }`
[INFO] [stdout] f6a3d074aa399d25b0e6c2fd6b6f9d5b544c118c807d7842d355f764664d29a4
