[INFO] cloning repository https://github.com/Tloru/keikan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tloru/keikan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTloru%2Fkeikan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTloru%2Fkeikan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 044bcd470f9475ed7309a95a9946a2bd6b2255c6
[INFO] documenting Tloru/keikan against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTloru%2Fkeikan" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tloru/keikan 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 git repo https://github.com/Tloru/keikan
[INFO] finished tweaking git repo https://github.com/Tloru/keikan
[INFO] tweaked toml for git repo https://github.com/Tloru/keikan written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Tloru/keikan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miow v0.3.4
[INFO] [stderr]   Downloaded pin-project-lite v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 7a0c8483b5a4bad39e569fde99fce47162730169cf4da9af12fe9c299e13d1ad
[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" "7a0c8483b5a4bad39e569fde99fce47162730169cf4da9af12fe9c299e13d1ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a0c8483b5a4bad39e569fde99fce47162730169cf4da9af12fe9c299e13d1ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0c8483b5a4bad39e569fde99fce47162730169cf4da9af12fe9c299e13d1ad", kill_on_drop: false }`
[INFO] [stdout] 7a0c8483b5a4bad39e569fde99fce47162730169cf4da9af12fe9c299e13d1ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 13042848c099a698b48792e7bcfe3511bf1ba6896c8cdc668ae82fa5e2c114d4
[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" "13042848c099a698b48792e7bcfe3511bf1ba6896c8cdc668ae82fa5e2c114d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]  Documenting keikan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/objects/plane.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |         if (denom.abs() > 0.0) {
[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 `if` condition
[INFO] [stdout]   --> src/objects/plane.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 |             if (t >= 0.0) {
[INFO] [stdout]    |                ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/render.rs:160:45
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let sample = color(&scene, scatter, (bounce - 1), 1); // (samples / 2).max(1)); // only take one sample
[INFO] [stdout]     |                                             ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/render.rs:170:43
[INFO] [stdout]     |
[INFO] [stdout] 170 |         specular = color(&scene, scatter, (bounce - 1), samples);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/render.rs:179:49
[INFO] [stdout]     |
[INFO] [stdout] 179 |             let sample = color(&scene, scatter, (bounce - 1), (samples / 2).max(1));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]    --> src/render.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |       return (
[INFO] [stdout]     |  ____________^
[INFO] [stdout] 190 | |         (
[INFO] [stdout] 191 | |             ( // for dielectric materials. TODO: fresnel blending
[INFO] [stdout] 192 | |                 (
[INFO] [stdout] ...   |
[INFO] [stdout] 210 | |         )
[INFO] [stdout] 211 | |     );
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 189 |     return (
[INFO] [stdout] 190 |             ( // for dielectric materials. TODO: fresnel blending
[INFO] [stdout] 191 |                 (
[INFO] [stdout] 192 |                     (transmission *        material.transmission)  // mix transparent
[INFO] [stdout] 193 |                   + (diffuse      * (1.0 - material.transmission)) // and diffuse
[INFO] [stdout] 194 |                 )
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.45s
[INFO] running `Command { std: "docker" "inspect" "13042848c099a698b48792e7bcfe3511bf1ba6896c8cdc668ae82fa5e2c114d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13042848c099a698b48792e7bcfe3511bf1ba6896c8cdc668ae82fa5e2c114d4", kill_on_drop: false }`
[INFO] [stdout] 13042848c099a698b48792e7bcfe3511bf1ba6896c8cdc668ae82fa5e2c114d4