[INFO] cloning repository https://github.com/re-oh/digital_canvas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/re-oh/digital_canvas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fre-oh%2Fdigital_canvas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fre-oh%2Fdigital_canvas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 784eec0f77742d8fa3b218acfeb3329c84761da9
[INFO] checking re-oh/digital_canvas against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fre-oh%2Fdigital_canvas" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/re-oh/digital_canvas
[INFO] finished tweaking git repo https://github.com/re-oh/digital_canvas
[INFO] tweaked toml for git repo https://github.com/re-oh/digital_canvas written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/re-oh/digital_canvas on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/re-oh/digital_canvas 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking re-oh/digital_canvas against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fre-oh%2Fdigital_canvas" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/re-oh/digital_canvas
[INFO] finished tweaking git repo https://github.com/re-oh/digital_canvas
[INFO] tweaked toml for git repo https://github.com/re-oh/digital_canvas written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/re-oh/digital_canvas on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/re-oh/digital_canvas 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytemuck v1.14.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0df74af9e549f0703d9520020a94171d81a70b2f01594b891c12a0c82c7d7ff4
[INFO] running `Command { std: "docker" "start" "-a" "0df74af9e549f0703d9520020a94171d81a70b2f01594b891c12a0c82c7d7ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0df74af9e549f0703d9520020a94171d81a70b2f01594b891c12a0c82c7d7ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df74af9e549f0703d9520020a94171d81a70b2f01594b891c12a0c82c7d7ff4", kill_on_drop: false }`
[INFO] [stdout] 0df74af9e549f0703d9520020a94171d81a70b2f01594b891c12a0c82c7d7ff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b8fd5c2a01f7bcc03a7785a9f25a4a518992711acd712087e729759865b2ae7
[INFO] running `Command { std: "docker" "start" "-a" "4b8fd5c2a01f7bcc03a7785a9f25a4a518992711acd712087e729759865b2ae7", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking either v1.9.0
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[INFO] [stderr]    Compiling num-traits v0.2.17
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[INFO] [stderr]     Checking jpeg-decoder v0.3.1
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[INFO] [stderr]     Checking digital_canvas v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::RangeInclusive`
[INFO] [stdout]  --> src/digital_canvas/canvas.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::RangeInclusive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rgba`
[INFO] [stdout]  --> src/digital_canvas/canvas.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image::{ImageBuffer, Rgba, RgbaImage};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GenericRenderData`
[INFO] [stdout]  --> src/digital_canvas/layer.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::render::{GenericRenderData, Renderable};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::RangeInclusive`
[INFO] [stdout]  --> src/digital_canvas/canvas.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::RangeInclusive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::render::Renderable`
[INFO] [stdout]  --> src/digital_canvas/graphics.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::render::Renderable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rgba`
[INFO] [stdout]  --> src/digital_canvas/canvas.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use image::{ImageBuffer, Rgba, RgbaImage};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GenericRenderData`
[INFO] [stdout]  --> src/digital_canvas/layer.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::render::{GenericRenderData, Renderable};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::render::Renderable`
[INFO] [stdout]  --> src/digital_canvas/graphics.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::render::Renderable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Canvas` is never constructed
[INFO] [stdout]  --> src/digital_canvas/canvas.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Canvas {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Canvas` is never constructed
[INFO] [stdout]  --> src/digital_canvas/canvas.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Canvas {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_layer` are never used
[INFO] [stdout]   --> src/digital_canvas/canvas.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Canvas {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |   fn new(width:u32, height:u32) -> Self {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |   fn add_layer(&mut self, name: &str ) {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add_layer` are never used
[INFO] [stdout]   --> src/digital_canvas/canvas.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Canvas {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 11 |
[INFO] [stdout] 12 |   fn new(width:u32, height:u32) -> Self {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |   fn add_layer(&mut self, name: &str ) {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]  --> src/digital_canvas/layer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Layer {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Layer` is never constructed
[INFO] [stdout]  --> src/digital_canvas/layer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Layer {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_zindex`, `move_above`, `move_below`, `move_down`, and `move_up` are never used
[INFO] [stdout]   --> src/digital_canvas/layer.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Layer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |   pub fn new( name: String, dimensions: Dimensions, zindex: i32 ) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |   pub fn set_zindex ( &mut self, z: i32 ) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |   pub fn move_above ( &mut self, comp_layer:&Layer ) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |   pub fn move_below ( &mut self, comp_layer:&Layer ) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |   pub fn move_down (&mut self, layers: i32) {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |   pub fn move_up (&mut self, layers: i32) {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_zindex`, `move_above`, `move_below`, `move_down`, and `move_up` are never used
[INFO] [stdout]   --> src/digital_canvas/layer.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Layer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |   pub fn new( name: String, dimensions: Dimensions, zindex: i32 ) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |   pub fn set_zindex ( &mut self, z: i32 ) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |   pub fn move_above ( &mut self, comp_layer:&Layer ) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |   pub fn move_below ( &mut self, comp_layer:&Layer ) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |   pub fn move_down (&mut self, layers: i32) {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |   pub fn move_up (&mut self, layers: i32) {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Box` is never constructed
[INFO] [stdout]  --> src/digital_canvas/graphics.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Box {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Line` is never constructed
[INFO] [stdout]  --> src/digital_canvas/graphics.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Line {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Box` is never constructed
[INFO] [stdout]  --> src/digital_canvas/graphics.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Box {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Triangle` is never constructed
[INFO] [stdout]   --> src/digital_canvas/graphics.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Triangle {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Line` is never constructed
[INFO] [stdout]  --> src/digital_canvas/graphics.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Line {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Triangle` is never constructed
[INFO] [stdout]   --> src/digital_canvas/graphics.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Triangle {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Oval` is never constructed
[INFO] [stdout]   --> src/digital_canvas/graphics.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Oval {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Oval` is never constructed
[INFO] [stdout]   --> src/digital_canvas/graphics.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Oval {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_tuple`, `centroid`, and `delta` are never used
[INFO] [stdout]   --> src/digital_canvas/cords.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Cords2D {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 11 |   pub fn to_tuple(&self) -> (u32, u32) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |   pub fn centroid(&self, other: &Cords2D) -> Cords2D {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |   pub fn delta(&self, other: &Cords2D) -> (i32, i32) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_tuple`, `centroid`, and `delta` are never used
[INFO] [stdout]   --> src/digital_canvas/cords.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Cords2D {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 11 |   pub fn to_tuple(&self) -> (u32, u32) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |   pub fn centroid(&self, other: &Cords2D) -> Cords2D {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |   pub fn delta(&self, other: &Cords2D) -> (i32, i32) {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dimensions` is never constructed
[INFO] [stdout]  --> src/digital_canvas/dimensions.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Dimensions {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dimensions` is never constructed
[INFO] [stdout]  --> src/digital_canvas/dimensions.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Dimensions {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `new_from_tuple`, and `to_tuple` are never used
[INFO] [stdout]   --> src/digital_canvas/dimensions.rs:8:10
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Dimensions {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 8  |   pub fn new(width: u32, height: u32) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |   pub fn new_from_tuple(dims: (u32, u32)) -> Self {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |   pub fn to_tuple(&self) -> (u32, u32) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `new_from_tuple`, and `to_tuple` are never used
[INFO] [stdout]   --> src/digital_canvas/dimensions.rs:8:10
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Dimensions {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 8  |   pub fn new(width: u32, height: u32) -> Self {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |   pub fn new_from_tuple(dims: (u32, u32)) -> Self {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |   pub fn to_tuple(&self) -> (u32, u32) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenericRenderData` is never constructed
[INFO] [stdout]  --> src/digital_canvas/render.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct GenericRenderData {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Renderable` is never used
[INFO] [stdout]  --> src/digital_canvas/render.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Renderable {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenericRenderData` is never constructed
[INFO] [stdout]  --> src/digital_canvas/render.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct GenericRenderData {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Renderable` is never used
[INFO] [stdout]  --> src/digital_canvas/render.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Renderable {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 6.07s
[INFO] running `Command { std: "docker" "inspect" "4b8fd5c2a01f7bcc03a7785a9f25a4a518992711acd712087e729759865b2ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8fd5c2a01f7bcc03a7785a9f25a4a518992711acd712087e729759865b2ae7", kill_on_drop: false }`
[INFO] [stdout] 4b8fd5c2a01f7bcc03a7785a9f25a4a518992711acd712087e729759865b2ae7
