[INFO] fetching crate rsmath 0.1.6...
[INFO] documenting rsmath-0.1.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rsmath 0.1.6 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rsmath 0.1.6 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 rsmath 0.1.6
[INFO] finished tweaking crates.io crate rsmath 0.1.6
[INFO] tweaked toml for crates.io crate rsmath 0.1.6 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 34def8fd289e862f9f530163a5d73abe2ed5deca5f3f171593b7d0214767c64e
[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" "34def8fd289e862f9f530163a5d73abe2ed5deca5f3f171593b7d0214767c64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34def8fd289e862f9f530163a5d73abe2ed5deca5f3f171593b7d0214767c64e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34def8fd289e862f9f530163a5d73abe2ed5deca5f3f171593b7d0214767c64e", kill_on_drop: false }`
[INFO] [stdout] 34def8fd289e862f9f530163a5d73abe2ed5deca5f3f171593b7d0214767c64e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] ecd69876b3cd1b44d5342dbb2c924b5bc8e21b59e6d7d40bdb8d0bc02eb03ba8
[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" "ecd69876b3cd1b44d5342dbb2c924b5bc8e21b59e6d7d40bdb8d0bc02eb03ba8", kill_on_drop: false }`
[INFO] [stderr]  Documenting rsmath v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/algebra/vector.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         (sum / self.values.len() as f64)
[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 function argument
[INFO] [stdout]    --> src/linspace/point.rs:113:29
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let val: f64 = (pow((a.x() - b.x()), 2) +
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/linspace/point.rs:114:29
[INFO] [stdout]     |
[INFO] [stdout] 114 |                         pow((a.y() - b.y()), 2) +
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/linspace/point.rs:115:29
[INFO] [stdout]     |
[INFO] [stdout] 115 |                         pow((a.z() - b.z()), 2)).into();
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/linspace/vector.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         ((self.x*other.x) + (self.y*other.y) + (self.z*other.z))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "ecd69876b3cd1b44d5342dbb2c924b5bc8e21b59e6d7d40bdb8d0bc02eb03ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd69876b3cd1b44d5342dbb2c924b5bc8e21b59e6d7d40bdb8d0bc02eb03ba8", kill_on_drop: false }`
[INFO] [stdout] ecd69876b3cd1b44d5342dbb2c924b5bc8e21b59e6d7d40bdb8d0bc02eb03ba8