[INFO] fetching crate rusty-machine 0.5.4...
[INFO] documenting rusty-machine-0.5.4 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate rusty-machine 0.5.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rusty-machine 0.5.4 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 rusty-machine 0.5.4
[INFO] finished tweaking crates.io crate rusty-machine 0.5.4
[INFO] tweaked toml for crates.io crate rusty-machine 0.5.4 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] d9f0fda2db1e9201cab8adf9df400493952f4825179dad63503b6c5a516b7558
[INFO] running `Command { std: "docker" "start" "-a" "d9f0fda2db1e9201cab8adf9df400493952f4825179dad63503b6c5a516b7558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9f0fda2db1e9201cab8adf9df400493952f4825179dad63503b6c5a516b7558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9f0fda2db1e9201cab8adf9df400493952f4825179dad63503b6c5a516b7558", kill_on_drop: false }`
[INFO] [stdout] d9f0fda2db1e9201cab8adf9df400493952f4825179dad63503b6c5a516b7558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e97c6439836357476b90872fd0ab51eba715edb7f89e49d7d30ff0e03028cf90
[INFO] running `Command { std: "docker" "start" "-a" "e97c6439836357476b90872fd0ab51eba715edb7f89e49d7d30ff0e03028cf90", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]  Documenting rusty-machine v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/learning/toolkit/kernel.rs:292:9
[INFO] [stdout]     |
[INFO] [stdout] 292 |         (self.ampl * x.exp())
[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 block return value
[INFO] [stdout]    --> src/learning/toolkit/kernel.rs:354:9
[INFO] [stdout]     |
[INFO] [stdout] 354 |         (self.ampl * x.exp())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "e97c6439836357476b90872fd0ab51eba715edb7f89e49d7d30ff0e03028cf90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97c6439836357476b90872fd0ab51eba715edb7f89e49d7d30ff0e03028cf90", kill_on_drop: false }`
[INFO] [stdout] e97c6439836357476b90872fd0ab51eba715edb7f89e49d7d30ff0e03028cf90
