[INFO] cloning repository https://github.com/artran/ray-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/artran/ray-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartran%2Fray-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartran%2Fray-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12ac628cb0bee4ecb74e8040f0733c0915504c3a
[INFO] checking artran/ray-tracer against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fartran%2Fray-tracer" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/artran/ray-tracer on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/artran/ray-tracer
[INFO] finished tweaking git repo https://github.com/artran/ray-tracer
[INFO] tweaked toml for git repo https://github.com/artran/ray-tracer written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/artran/ray-tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de49d869b37e9c2a579b59a88be162fd1d5a6d17106100d5748b376a944c8233
[INFO] running `Command { std: "docker" "start" "-a" "de49d869b37e9c2a579b59a88be162fd1d5a6d17106100d5748b376a944c8233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de49d869b37e9c2a579b59a88be162fd1d5a6d17106100d5748b376a944c8233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de49d869b37e9c2a579b59a88be162fd1d5a6d17106100d5748b376a944c8233", kill_on_drop: false }`
[INFO] [stdout] de49d869b37e9c2a579b59a88be162fd1d5a6d17106100d5748b376a944c8233
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f7fcf041c43705ab6d5b31b5ecd0ef3f852978655029b75478a4b3995d9230d
[INFO] running `Command { std: "docker" "start" "-a" "7f7fcf041c43705ab6d5b31b5ecd0ef3f852978655029b75478a4b3995d9230d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking simba v0.4.0
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling rstest v0.10.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]     Checking nalgebra v0.26.2
[INFO] [stderr]     Checking ray-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `pixel_at`
[INFO] [stdout]   --> src/canvas.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn pixel_at(&self, x: usize, y: usize) -> Color {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/intersection.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/light.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(position: Vector4<f32>, intensity: Color) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_ambient`
[INFO] [stdout]   --> src/material.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn with_ambient(mut self, ambient: f32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_shininess`
[INFO] [stdout]   --> src/material.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn with_shininess(mut self, shininess: f32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_light_source`
[INFO] [stdout]   --> src/world.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn with_light_source(mut self, light_source: PointLight) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_shininess`
[INFO] [stdout]   --> src/material.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn with_shininess(mut self, shininess: f32) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 27s
[INFO] running `Command { std: "docker" "inspect" "7f7fcf041c43705ab6d5b31b5ecd0ef3f852978655029b75478a4b3995d9230d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f7fcf041c43705ab6d5b31b5ecd0ef3f852978655029b75478a4b3995d9230d", kill_on_drop: false }`
[INFO] [stdout] 7f7fcf041c43705ab6d5b31b5ecd0ef3f852978655029b75478a4b3995d9230d