[INFO] cloning repository https://github.com/rafaelvargas/lightpaths
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rafaelvargas/lightpaths" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafaelvargas%2Flightpaths", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafaelvargas%2Flightpaths'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97b21218a841e2ad58f80167007d01098a36740d
[INFO] testing rafaelvargas/lightpaths against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafaelvargas%2Flightpaths" "/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/rafaelvargas/lightpaths 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/rafaelvargas/lightpaths
[INFO] finished tweaking git repo https://github.com/rafaelvargas/lightpaths
[INFO] tweaked toml for git repo https://github.com/rafaelvargas/lightpaths written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/rafaelvargas/lightpaths 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] [stderr]     Blocking waiting for file lock on package cache
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cf01b7e22d4daee187c81478884a03dad8396370555fd9ee4cf3ef12858f6dc
[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" "5cf01b7e22d4daee187c81478884a03dad8396370555fd9ee4cf3ef12858f6dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cf01b7e22d4daee187c81478884a03dad8396370555fd9ee4cf3ef12858f6dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf01b7e22d4daee187c81478884a03dad8396370555fd9ee4cf3ef12858f6dc", kill_on_drop: false }`
[INFO] [stdout] 5cf01b7e22d4daee187c81478884a03dad8396370555fd9ee4cf3ef12858f6dc
[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" "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] [stdout] 910c5658c5dbcf2a756d204095b16577e6062c15a907f1b66910dee0a044b89c
[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" "910c5658c5dbcf2a756d204095b16577e6062c15a907f1b66910dee0a044b89c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling lightpaths v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/object.rs:214:17
[INFO] [stdout]     |
[INFO] [stdout] 214 |         let s = (ray.origin - self.p0);
[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 assigned value
[INFO] [stdout]    --> src/object.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |         let s = (ray.origin - self.p0);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     objects: Vec<Box<object::Object>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:15:60
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(lights: Vec<light::Light>, objects: Vec<Box<object::Object>>) -> Scene {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let objects: Vec<Box<object::Object>> = vec![
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_light`
[INFO] [stdout]   --> src/main.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let right_light = light::Light::new(math::Vector::new(-0.8, 0.5, 0.0), 0.8);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/object.rs:227:17
[INFO] [stdout]     |
[INFO] [stdout] 227 |             let result = ray.origin + ray.direction * t;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p1`
[INFO] [stdout]    --> src/object.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     p1: math::Vector,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p2`
[INFO] [stdout]    --> src/object.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     p2: math::Vector,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/object.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn new(p0: math::Vector, p1: math::Vector, p2: math::Vector, surface: Surface) -> Triangle {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "910c5658c5dbcf2a756d204095b16577e6062c15a907f1b66910dee0a044b89c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "910c5658c5dbcf2a756d204095b16577e6062c15a907f1b66910dee0a044b89c", kill_on_drop: false }`
[INFO] [stdout] 910c5658c5dbcf2a756d204095b16577e6062c15a907f1b66910dee0a044b89c
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 02bcc52985d3f4fd187f8cc9ddbb9e7e2fc75e4956e859bcb14eaa5c5fc65651
[INFO] running `Command { std: "docker" "start" "-a" "02bcc52985d3f4fd187f8cc9ddbb9e7e2fc75e4956e859bcb14eaa5c5fc65651", kill_on_drop: false }`
[INFO] [stderr]    Compiling lightpaths v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/object.rs:214:17
[INFO] [stdout]     |
[INFO] [stdout] 214 |         let s = (ray.origin - self.p0);
[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 assigned value
[INFO] [stdout]    --> src/object.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |         let s = (ray.origin - self.p0);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 |     objects: Vec<Box<object::Object>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:15:60
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(lights: Vec<light::Light>, objects: Vec<Box<object::Object>>) -> Scene {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/util.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let objects: Vec<Box<object::Object>> = vec![
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_light`
[INFO] [stdout]   --> src/main.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let right_light = light::Light::new(math::Vector::new(-0.8, 0.5, 0.0), 0.8);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_light`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/object.rs:227:17
[INFO] [stdout]     |
[INFO] [stdout] 227 |             let result = ray.origin + ray.direction * t;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p1`
[INFO] [stdout]    --> src/object.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     p1: math::Vector,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `p2`
[INFO] [stdout]    --> src/object.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     p2: math::Vector,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/object.rs:184:12
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn new(p0: math::Vector, p1: math::Vector, p2: math::Vector, surface: Surface) -> Triangle {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "02bcc52985d3f4fd187f8cc9ddbb9e7e2fc75e4956e859bcb14eaa5c5fc65651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02bcc52985d3f4fd187f8cc9ddbb9e7e2fc75e4956e859bcb14eaa5c5fc65651", kill_on_drop: false }`
[INFO] [stdout] 02bcc52985d3f4fd187f8cc9ddbb9e7e2fc75e4956e859bcb14eaa5c5fc65651
[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" "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] deda11a33b0b2db62b1049af8a771fb147987ee0f69a055afd718592593f3801
[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" "deda11a33b0b2db62b1049af8a771fb147987ee0f69a055afd718592593f3801", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/object.rs:214:17
[INFO] [stderr]     |
[INFO] [stderr] 214 |         let s = (ray.origin - self.p0);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/object.rs:242:17
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let s = (ray.origin - self.p0);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 |     objects: Vec<Box<object::Object>>,
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scene.rs:15:60
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(lights: Vec<light::Light>, objects: Vec<Box<object::Object>>) -> Scene {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/util.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:53:26
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let objects: Vec<Box<object::Object>> = vec![
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right_light`
[INFO] [stderr]   --> src/main.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let right_light = light::Light::new(math::Vector::new(-0.8, 0.5, 0.0), 0.8);
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_light`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/object.rs:227:17
[INFO] [stderr]     |
[INFO] [stderr] 227 |             let result = ray.origin + ray.direction * t;
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `p1`
[INFO] [stderr]    --> src/object.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     p1: math::Vector,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `p2`
[INFO] [stderr]    --> src/object.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     p2: math::Vector,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/object.rs:184:12
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn new(p0: math::Vector, p1: math::Vector, p2: math::Vector, surface: Surface) -> Triangle {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lightpaths-bf870bd98b55f8ca
[INFO] [stdout] running 10 tests
[INFO] [stdout] test math::tests::normalization_of_vector_test ... ok
[INFO] [stdout] test math::tests::subtraction_of_vectors_test ... ok
[INFO] [stdout] test math::tests::sum_of_vectors_test ... ok
[INFO] [stdout] test math::tests::cross_product_test ... ok
[INFO] [stdout] test math::tests::division_vector_by_scalar_test ... ok
[INFO] [stdout] test math::tests::dot_product_test ... ok
[INFO] [stdout] test camera::tests::camera_coordinates_test ... ok
[INFO] [stdout] test math::tests::multiplication_vector_by_scalar_test ... ok
[INFO] [stdout] test math::tests::magnitude_of_vector ... ok
[INFO] [stdout] test image::tests::pixel_color_assignment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "deda11a33b0b2db62b1049af8a771fb147987ee0f69a055afd718592593f3801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deda11a33b0b2db62b1049af8a771fb147987ee0f69a055afd718592593f3801", kill_on_drop: false }`
[INFO] [stdout] deda11a33b0b2db62b1049af8a771fb147987ee0f69a055afd718592593f3801