[INFO] cloning repository https://github.com/kalexmills/raytracer-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kalexmills/raytracer-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkalexmills%2Fraytracer-rs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkalexmills%2Fraytracer-rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c9380e89af768a0be2697c0a53f4fa77b1a96ad
[INFO] checking kalexmills/raytracer-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkalexmills%2Fraytracer-rs" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kalexmills/raytracer-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kalexmills/raytracer-rs
[INFO] finished tweaking git repo https://github.com/kalexmills/raytracer-rs
[INFO] tweaked toml for git repo https://github.com/kalexmills/raytracer-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kalexmills/raytracer-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e37b2bf6becfaa3dced54793349102c47b7f8718201659b7a4f0c4148e171a1d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e37b2bf6becfaa3dced54793349102c47b7f8718201659b7a4f0c4148e171a1d"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking impl_ops v0.1.1
[INFO] [stderr]     Checking raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ops`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::*`
[INFO] [stderr]  --> src/ray.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::ops;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::*`
[INFO] [stderr]  --> src/ray.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `oc`
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let oc: Vector3 = r.origin() - center;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_oc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `radius`
[INFO] [stderr]   --> src/main.rs:40:33
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn hit_sphere(center: &Vector3, radius: f32, r: &Ray) {
[INFO] [stderr]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_radius`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `origin`
[INFO] [stderr]   --> src/ray.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn origin(&self) -> Vector3 { self.vec1 }
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `point_at_direction`
[INFO] [stderr]   --> src/ray.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn point_at_direction(&self, t:f32) -> Vector3 { self.vec1 + t * self.vec2}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hit_sphere`
[INFO] [stderr]   --> src/main.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn hit_sphere(center: &Vector3, radius: f32, r: &Ray) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     writeToFile(&a);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `writeToFile` should have a snake case name
[INFO] [stderr]   --> src/main.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn writeToFile(s:&String) -> std::io::Result<()> {
[INFO] [stderr]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `write_to_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `oc`
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let oc: Vector3 = r.origin() - center;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_oc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `radius`
[INFO] [stderr]   --> src/main.rs:40:33
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn hit_sphere(center: &Vector3, radius: f32, r: &Ray) {
[INFO] [stderr]    |                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_radius`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `origin`
[INFO] [stderr]   --> src/ray.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn origin(&self) -> Vector3 { self.vec1 }
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `point_at_direction`
[INFO] [stderr]   --> src/ray.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn point_at_direction(&self, t:f32) -> Vector3 { self.vec1 + t * self.vec2}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hit_sphere`
[INFO] [stderr]   --> src/main.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn hit_sphere(center: &Vector3, radius: f32, r: &Ray) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     writeToFile(&a);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `writeToFile` should have a snake case name
[INFO] [stderr]   --> src/main.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn writeToFile(s:&String) -> std::io::Result<()> {
[INFO] [stderr]    |    ^^^^^^^^^^^ help: convert the identifier to snake case: `write_to_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "e37b2bf6becfaa3dced54793349102c47b7f8718201659b7a4f0c4148e171a1d"`
[INFO] running `"docker" "rm" "-f" "e37b2bf6becfaa3dced54793349102c47b7f8718201659b7a4f0c4148e171a1d"`
[INFO] [stdout] e37b2bf6becfaa3dced54793349102c47b7f8718201659b7a4f0c4148e171a1d