[INFO] cloning repository https://github.com/Nil-Cipher/hopefully_ray_tracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nil-Cipher/hopefully_ray_tracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNil-Cipher%2Fhopefully_ray_tracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNil-Cipher%2Fhopefully_ray_tracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53a2b6513fce23caded4a4a98cbc7cb771da926f
[INFO] testing Nil-Cipher/hopefully_ray_tracing against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNil-Cipher%2Fhopefully_ray_tracing" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nil-Cipher/hopefully_ray_tracing on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nil-Cipher/hopefully_ray_tracing
[INFO] finished tweaking git repo https://github.com/Nil-Cipher/hopefully_ray_tracing
[INFO] tweaked toml for git repo https://github.com/Nil-Cipher/hopefully_ray_tracing written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Nil-Cipher/hopefully_ray_tracing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8153b023b20c2bcf25e072ec03359c825df78d4c39addce10e0c53ebe06eb09a
[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" "8153b023b20c2bcf25e072ec03359c825df78d4c39addce10e0c53ebe06eb09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8153b023b20c2bcf25e072ec03359c825df78d4c39addce10e0c53ebe06eb09a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8153b023b20c2bcf25e072ec03359c825df78d4c39addce10e0c53ebe06eb09a", kill_on_drop: false }`
[INFO] [stdout] 8153b023b20c2bcf25e072ec03359c825df78d4c39addce10e0c53ebe06eb09a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] f764f46a4b2d9a9fb7d51a1245bd22d88f98b5ad1c7620e07fb3bc6283b617af
[INFO] running `Command { std: "docker" "start" "-a" "f764f46a4b2d9a9fb7d51a1245bd22d88f98b5ad1c7620e07fb3bc6283b617af", kill_on_drop: false }`
[INFO] [stderr]    Compiling hopefully_ray_tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::vector`
[INFO] [stdout]  --> src/ray.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::vector;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:75:67
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:81:69
[INFO] [stdout]    |
[INFO] [stdout] 81 |         Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]   --> src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut s = String::new();
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `r`
[INFO] [stdout]   --> src/vector.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn r(&self) -> f64 {
[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: `g`
[INFO] [stdout]   --> src/vector.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |   pub fn g(&self) -> f64 {
[INFO] [stdout]    |          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `b`
[INFO] [stdout]   --> src/vector.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn b(&self) -> f64 {
[INFO] [stdout]    |          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]   --> src/vector.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 |   pub fn cross(&self, v2: Vec3) -> Vec3 {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mul_equal_const`
[INFO] [stdout]   --> src/vector.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 |   pub fn mul_equal_const(&mut self, c: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `div_equal_const`
[INFO] [stdout]   --> src/vector.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |   pub fn div_equal_const(&mut self, c: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let N = (r.point_at_parameter(t) - vector::build_vec3(0.0, 0.0, -1.0)).unit_vector();
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "f764f46a4b2d9a9fb7d51a1245bd22d88f98b5ad1c7620e07fb3bc6283b617af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f764f46a4b2d9a9fb7d51a1245bd22d88f98b5ad1c7620e07fb3bc6283b617af", kill_on_drop: false }`
[INFO] [stdout] f764f46a4b2d9a9fb7d51a1245bd22d88f98b5ad1c7620e07fb3bc6283b617af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6dfa588e3c75301c604d7265f4b2f2f5b15ef123e7ac0850f1589d6098c5f48
[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" "c6dfa588e3c75301c604d7265f4b2f2f5b15ef123e7ac0850f1589d6098c5f48", kill_on_drop: false }`
[INFO] [stderr]    Compiling hopefully_ray_tracing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::vector`
[INFO] [stdout]  --> src/ray.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::vector;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:75:67
[INFO] [stdout]    |
[INFO] [stdout] 75 |         Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:81:69
[INFO] [stdout]    |
[INFO] [stdout] 81 |         Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]   --> src/main.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut s = String::new();
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `r`
[INFO] [stdout]   --> src/vector.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub fn r(&self) -> f64 {
[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: `g`
[INFO] [stdout]   --> src/vector.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |   pub fn g(&self) -> f64 {
[INFO] [stdout]    |          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `b`
[INFO] [stdout]   --> src/vector.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |   pub fn b(&self) -> f64 {
[INFO] [stdout]    |          ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]   --> src/vector.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 |   pub fn cross(&self, v2: Vec3) -> Vec3 {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mul_equal_const`
[INFO] [stdout]   --> src/vector.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 |   pub fn mul_equal_const(&mut self, c: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `div_equal_const`
[INFO] [stdout]   --> src/vector.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |   pub fn div_equal_const(&mut self, c: f64) {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let N = (r.point_at_parameter(t) - vector::build_vec3(0.0, 0.0, -1.0)).unit_vector();
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "c6dfa588e3c75301c604d7265f4b2f2f5b15ef123e7ac0850f1589d6098c5f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6dfa588e3c75301c604d7265f4b2f2f5b15ef123e7ac0850f1589d6098c5f48", kill_on_drop: false }`
[INFO] [stdout] c6dfa588e3c75301c604d7265f4b2f2f5b15ef123e7ac0850f1589d6098c5f48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba2f36a65d546d950919158b2d07f601ae54d43c056b42aa089a3f86f866b51a
[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" "ba2f36a65d546d950919158b2d07f601ae54d43c056b42aa089a3f86f866b51a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::vector`
[INFO] [stderr]  --> src/ray.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::vector;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:75:67
[INFO] [stderr]    |
[INFO] [stderr] 75 |         Err(why) => panic!("couldn't create {}: {}", display, why.description()),
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:81:69
[INFO] [stderr]    |
[INFO] [stderr] 81 |         Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr]    |                                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `s` is never read
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let mut s = String::new();
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `r`
[INFO] [stderr]   --> src/vector.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub fn r(&self) -> f64 {
[INFO] [stderr]    |          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `g`
[INFO] [stderr]   --> src/vector.rs:24:10
[INFO] [stderr]    |
[INFO] [stderr] 24 |   pub fn g(&self) -> f64 {
[INFO] [stderr]    |          ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `b`
[INFO] [stderr]   --> src/vector.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 |   pub fn b(&self) -> f64 {
[INFO] [stderr]    |          ^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cross`
[INFO] [stderr]   --> src/vector.rs:47:10
[INFO] [stderr]    |
[INFO] [stderr] 47 |   pub fn cross(&self, v2: Vec3) -> Vec3 {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mul_equal_const`
[INFO] [stderr]   --> src/vector.rs:66:10
[INFO] [stderr]    |
[INFO] [stderr] 66 |   pub fn mul_equal_const(&mut self, c: f64) {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `div_equal_const`
[INFO] [stderr]   --> src/vector.rs:73:10
[INFO] [stderr]    |
[INFO] [stderr] 73 |   pub fn div_equal_const(&mut self, c: f64) {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `N` should have a snake case name
[INFO] [stderr]   --> src/main.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let N = (r.point_at_parameter(t) - vector::build_vec3(0.0, 0.0, -1.0)).unit_vector();
[INFO] [stderr]    |             ^ help: convert the identifier to snake case: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hopefully_ray_tracing-710b64b05604e600
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba2f36a65d546d950919158b2d07f601ae54d43c056b42aa089a3f86f866b51a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2f36a65d546d950919158b2d07f601ae54d43c056b42aa089a3f86f866b51a", kill_on_drop: false }`
[INFO] [stdout] ba2f36a65d546d950919158b2d07f601ae54d43c056b42aa089a3f86f866b51a