[INFO] fetching crate rusty_coin 0.2.4...
[INFO] documenting rusty_coin-0.2.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rusty_coin 0.2.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rusty_coin 0.2.4 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 rusty_coin 0.2.4
[INFO] finished tweaking crates.io crate rusty_coin 0.2.4
[INFO] tweaked toml for crates.io crate rusty_coin 0.2.4 written to /workspace/builds/worker-9/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] 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-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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4541f6591321eabf6fcd91cd43fd2d2bc8e2e4a612b40832ca5591b9fef5dbe0
[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" "4541f6591321eabf6fcd91cd43fd2d2bc8e2e4a612b40832ca5591b9fef5dbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4541f6591321eabf6fcd91cd43fd2d2bc8e2e4a612b40832ca5591b9fef5dbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4541f6591321eabf6fcd91cd43fd2d2bc8e2e4a612b40832ca5591b9fef5dbe0", kill_on_drop: false }`
[INFO] [stdout] 4541f6591321eabf6fcd91cd43fd2d2bc8e2e4a612b40832ca5591b9fef5dbe0
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f91b310cbdcd4be3b324bbe452fb47af66a5790a84c43082057a4c5e06da333
[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" "8f91b310cbdcd4be3b324bbe452fb47af66a5790a84c43082057a4c5e06da333", kill_on_drop: false }`
[INFO] [stderr]  Documenting rusty_coin v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/rc/rates.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |         Rate::new(((1.0 + self.rate as f64).powf(1.0 / num_periods as f64) - 1.0))
[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 method argument
[INFO] [stdout]   --> src/rc/cashflow.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |             .powf((2.0 * ind as f64)))
[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 1.55s
[INFO] running `Command { std: "docker" "inspect" "8f91b310cbdcd4be3b324bbe452fb47af66a5790a84c43082057a4c5e06da333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f91b310cbdcd4be3b324bbe452fb47af66a5790a84c43082057a4c5e06da333", kill_on_drop: false }`
[INFO] [stdout] 8f91b310cbdcd4be3b324bbe452fb47af66a5790a84c43082057a4c5e06da333