[INFO] cloning repository https://github.com/niceguynix/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/niceguynix/ray-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniceguynix%2Fray-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniceguynix%2Fray-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80c0e66cf3c2d4202f8ce348df05cb9f29e615a8
[INFO] building niceguynix/ray-tracer against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniceguynix%2Fray-tracer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niceguynix/ray-tracer on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/niceguynix/ray-tracer
[INFO] finished tweaking git repo https://github.com/niceguynix/ray-tracer
[INFO] tweaked toml for git repo https://github.com/niceguynix/ray-tracer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/niceguynix/ray-tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8125f89974d2d8535da83ed5eb1e815d2c393f4f8d1c56ea2dcba36c9c0f6de
[INFO] running `Command { std: "docker" "start" "-a" "e8125f89974d2d8535da83ed5eb1e815d2c393f4f8d1c56ea2dcba36c9c0f6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8125f89974d2d8535da83ed5eb1e815d2c393f4f8d1c56ea2dcba36c9c0f6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8125f89974d2d8535da83ed5eb1e815d2c393f4f8d1c56ea2dcba36c9c0f6de", kill_on_drop: false }`
[INFO] [stdout] e8125f89974d2d8535da83ed5eb1e815d2c393f4f8d1c56ea2dcba36c9c0f6de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82dd4288d25b86ea4c02c8503c6e5610949d5a04b9cc68a7f427101e6a292c34
[INFO] running `Command { std: "docker" "start" "-a" "82dd4288d25b86ea4c02c8503c6e5610949d5a04b9cc68a7f427101e6a292c34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ray-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `random_unit_vector`
[INFO] [stdout]  --> src/materials/dielectric.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     rtweekend::{random_unit_vector, refract},
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/materials/dielectric.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     r0 + (1.0 - r0) * f32::powi((1.0 - cosine), 5)
[INFO] [stdout]    |                                 ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -     r0 + (1.0 - r0) * f32::powi((1.0 - cosine), 5)
[INFO] [stdout] 59 +     r0 + (1.0 - r0) * f32::powi(1.0 - cosine, 5)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `distributions::Uniform` and `prelude::Distribution`
[INFO] [stdout]  --> src/types/vector.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{distributions::Uniform, prelude::Distribution, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `random_in_hemisphere` and `random_in_unit_sphere`
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     rtweekend::{random_in_hemisphere, random_in_unit_sphere},
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `refracted`
[INFO] [stdout]   --> src/materials/dielectric.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let refracted = refract(&unit_direction, &rec.normal, refraction_ratio);
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_refracted`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/materials/lambertian.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         r_in: &crate::types::ray::Ray,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `focal_length`
[INFO] [stdout]   --> src/types/camera.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let focal_length = 1.0;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_focal_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `R`
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let R = (PI / 4.0).cos();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `clear` are never used
[INFO] [stdout]   --> src/types/hittable_list.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl HittableList {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn new(object: Rc<dyn Hittable>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn clear(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_in_hemisphere` is never used
[INFO] [stdout]   --> src/types/rtweekend.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn random_in_hemisphere(normal: &Vec3) -> Vec3 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let R = (PI / 4.0).cos();
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "82dd4288d25b86ea4c02c8503c6e5610949d5a04b9cc68a7f427101e6a292c34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82dd4288d25b86ea4c02c8503c6e5610949d5a04b9cc68a7f427101e6a292c34", kill_on_drop: false }`
[INFO] [stdout] 82dd4288d25b86ea4c02c8503c6e5610949d5a04b9cc68a7f427101e6a292c34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1056373ef4a5aa070d5fe86fe7ca8466c8801b3a2ee9220b0b0b72bf331c91b8
[INFO] running `Command { std: "docker" "start" "-a" "1056373ef4a5aa070d5fe86fe7ca8466c8801b3a2ee9220b0b0b72bf331c91b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ray-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `random_unit_vector`
[INFO] [stdout]  --> src/materials/dielectric.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |     rtweekend::{random_unit_vector, refract},
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/materials/dielectric.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     r0 + (1.0 - r0) * f32::powi((1.0 - cosine), 5)
[INFO] [stdout]    |                                 ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -     r0 + (1.0 - r0) * f32::powi((1.0 - cosine), 5)
[INFO] [stdout] 59 +     r0 + (1.0 - r0) * f32::powi(1.0 - cosine, 5)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `distributions::Uniform` and `prelude::Distribution`
[INFO] [stdout]  --> src/types/vector.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{distributions::Uniform, prelude::Distribution, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `random_in_hemisphere` and `random_in_unit_sphere`
[INFO] [stdout]   --> src/main.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     rtweekend::{random_in_hemisphere, random_in_unit_sphere},
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `refracted`
[INFO] [stdout]   --> src/materials/dielectric.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let refracted = refract(&unit_direction, &rec.normal, refraction_ratio);
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_refracted`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_in`
[INFO] [stdout]   --> src/materials/lambertian.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         r_in: &crate::types::ray::Ray,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_r_in`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `focal_length`
[INFO] [stdout]   --> src/types/camera.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let focal_length = 1.0;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_focal_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `R`
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let R = (PI / 4.0).cos();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `clear` are never used
[INFO] [stdout]   --> src/types/hittable_list.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl HittableList {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn new(object: Rc<dyn Hittable>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn clear(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_in_hemisphere` is never used
[INFO] [stdout]   --> src/types/rtweekend.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn random_in_hemisphere(normal: &Vec3) -> Vec3 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]   --> src/main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let R = (PI / 4.0).cos();
[INFO] [stdout]    |         ^ help: convert the identifier to snake case: `r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "1056373ef4a5aa070d5fe86fe7ca8466c8801b3a2ee9220b0b0b72bf331c91b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1056373ef4a5aa070d5fe86fe7ca8466c8801b3a2ee9220b0b0b72bf331c91b8", kill_on_drop: false }`
[INFO] [stdout] 1056373ef4a5aa070d5fe86fe7ca8466c8801b3a2ee9220b0b0b72bf331c91b8