[INFO] cloning repository https://github.com/niloco/rust_rt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niloco/rust_rt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniloco%2Frust_rt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniloco%2Frust_rt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e61251abb67342f853ad833bf0adf5aba094c1c
[INFO] testing niloco/rust_rt against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniloco%2Frust_rt" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niloco/rust_rt on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/niloco/rust_rt
[INFO] finished tweaking git repo https://github.com/niloco/rust_rt
[INFO] tweaked toml for git repo https://github.com/niloco/rust_rt written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/niloco/rust_rt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] a7774925d8d8046142f0e855e67f74c9f4bbd3e92020e7ccbbbc702b81830218
[INFO] running `Command { std: "docker" "start" "-a" "a7774925d8d8046142f0e855e67f74c9f4bbd3e92020e7ccbbbc702b81830218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7774925d8d8046142f0e855e67f74c9f4bbd3e92020e7ccbbbc702b81830218", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7774925d8d8046142f0e855e67f74c9f4bbd3e92020e7ccbbbc702b81830218", kill_on_drop: false }`
[INFO] [stdout] a7774925d8d8046142f0e855e67f74c9f4bbd3e92020e7ccbbbc702b81830218
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43041beb1e4a8e0d6528a9381a4dfab4030f7e8e5d18c9bb642db0a7becdbe60
[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" "43041beb1e4a8e0d6528a9381a4dfab4030f7e8e5d18c9bb642db0a7becdbe60", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_rt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]  --> src/rt/ray.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     a: Vec3,
[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: `origin`
[INFO] [stdout]   --> src/rt/ray.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn origin(&self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `point_at_parameter`
[INFO] [stdout]   --> src/rt/ray.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn point_at_parameter(&self, t: f32) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Image`
[INFO] [stdout]  --> src/rt/image.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Image {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/rt/image.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(x: usize, y: usize) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]   --> src/rt/image.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_mut(&mut self, x: usize, y: usize) -> Option<&mut Pixel> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/rt/image.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn print(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `r`
[INFO] [stdout]   --> src/rt/image.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     r: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `g`
[INFO] [stdout]   --> src/rt/image.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     g: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> src/rt/image.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     b: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/rt/image.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_vals`
[INFO] [stdout]   --> src/rt/image.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_vals(r: u8, g: u8, b: u8) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/rt/image.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn set(&mut self, r: u8, g: u8, b: u8) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "43041beb1e4a8e0d6528a9381a4dfab4030f7e8e5d18c9bb642db0a7becdbe60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43041beb1e4a8e0d6528a9381a4dfab4030f7e8e5d18c9bb642db0a7becdbe60", kill_on_drop: false }`
[INFO] [stdout] 43041beb1e4a8e0d6528a9381a4dfab4030f7e8e5d18c9bb642db0a7becdbe60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 992394cd7caeff33c402d5fa517ff307c7bdf921e1739183b20f810cc54d4b13
[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" "992394cd7caeff33c402d5fa517ff307c7bdf921e1739183b20f810cc54d4b13", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_rt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]  --> src/rt/ray.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     a: Vec3,
[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: `origin`
[INFO] [stdout]   --> src/rt/ray.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn origin(&self) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `point_at_parameter`
[INFO] [stdout]   --> src/rt/ray.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn point_at_parameter(&self, t: f32) -> Vec3 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Image`
[INFO] [stdout]  --> src/rt/image.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Image {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/rt/image.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new(x: usize, y: usize) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_mut`
[INFO] [stdout]   --> src/rt/image.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get_mut(&mut self, x: usize, y: usize) -> Option<&mut Pixel> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/rt/image.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn print(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `r`
[INFO] [stdout]   --> src/rt/image.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     r: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `g`
[INFO] [stdout]   --> src/rt/image.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     g: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]   --> src/rt/image.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     b: u8,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/rt/image.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_vals`
[INFO] [stdout]   --> src/rt/image.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_vals(r: u8, g: u8, b: u8) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/rt/image.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn set(&mut self, r: u8, g: u8, b: u8) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "992394cd7caeff33c402d5fa517ff307c7bdf921e1739183b20f810cc54d4b13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "992394cd7caeff33c402d5fa517ff307c7bdf921e1739183b20f810cc54d4b13", kill_on_drop: false }`
[INFO] [stdout] 992394cd7caeff33c402d5fa517ff307c7bdf921e1739183b20f810cc54d4b13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c9e122b7fc9a9222830cf89752e4fd2b91f90c116ac7952a0339e3f90bcdf1cc
[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" "c9e122b7fc9a9222830cf89752e4fd2b91f90c116ac7952a0339e3f90bcdf1cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/rt/ray.rs:5:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 5 |     a: Vec3,
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `origin`
[INFO] [stderr]   --> src/rt/ray.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn origin(&self) -> Vec3 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `point_at_parameter`
[INFO] [stderr]   --> src/rt/ray.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn point_at_parameter(&self, t: f32) -> Vec3 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Image`
[INFO] [stderr]  --> src/rt/image.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Image {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/rt/image.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(x: usize, y: usize) -> Self {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_mut`
[INFO] [stderr]   --> src/rt/image.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn get_mut(&mut self, x: usize, y: usize) -> Option<&mut Pixel> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `print`
[INFO] [stderr]   --> src/rt/image.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn print(&self) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `r`
[INFO] [stderr]   --> src/rt/image.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     r: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `g`
[INFO] [stderr]   --> src/rt/image.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     g: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]   --> src/rt/image.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     b: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/rt/image.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_vals`
[INFO] [stderr]   --> src/rt/image.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn from_vals(r: u8, g: u8, b: u8) -> Self {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set`
[INFO] [stderr]   --> src/rt/image.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn set(&mut self, r: u8, g: u8, b: u8) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_rt-9d91921e37c69b62
[INFO] running `Command { std: "docker" "inspect" "c9e122b7fc9a9222830cf89752e4fd2b91f90c116ac7952a0339e3f90bcdf1cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e122b7fc9a9222830cf89752e4fd2b91f90c116ac7952a0339e3f90bcdf1cc", kill_on_drop: false }`
[INFO] [stdout] c9e122b7fc9a9222830cf89752e4fd2b91f90c116ac7952a0339e3f90bcdf1cc