[INFO] cloning repository https://github.com/hienduyph/pied
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hienduyph/pied" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhienduyph%2Fpied", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhienduyph%2Fpied'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b76968998b9f3877717b4d13a7bc3fb1b6d5e5b2
[INFO] testing hienduyph/pied against 1.85.0 for beta-1.86-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhienduyph%2Fpied" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hienduyph/pied on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hienduyph/pied
[INFO] finished tweaking git repo https://github.com/hienduyph/pied
[INFO] tweaked toml for git repo https://github.com/hienduyph/pied written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hienduyph/pied 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" "+1.85.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xoshiro v0.4.0
[INFO] [stderr]   Downloaded im v15.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab9b5eace5a9ae93eea6030ae9bbe9627ba6248863144558fc444e0c05d3d1c7
[INFO] running `Command { std: "docker" "start" "-a" "ab9b5eace5a9ae93eea6030ae9bbe9627ba6248863144558fc444e0c05d3d1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab9b5eace5a9ae93eea6030ae9bbe9627ba6248863144558fc444e0c05d3d1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9b5eace5a9ae93eea6030ae9bbe9627ba6248863144558fc444e0c05d3d1c7", kill_on_drop: false }`
[INFO] [stdout] ab9b5eace5a9ae93eea6030ae9bbe9627ba6248863144558fc444e0c05d3d1c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75e0f3103e9685712bff57dbab6c4b6a0cca6f24e1a76d2dd6a1793cfce03cd6
[INFO] running `Command { std: "docker" "start" "-a" "75e0f3103e9685712bff57dbab6c4b6a0cca6f24e1a76d2dd6a1793cfce03cd6", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling js-sys v0.3.55
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.7
[INFO] [stderr]    Compiling web-sys v0.3.55
[INFO] [stderr]    Compiling rust-webpack-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `queue` and `index` are never read
[INFO] [stdout]   --> src/lib.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct UndoQueue<T: Clone> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 73 |     queue: Vec<T>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 74 |     index: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UndoQueue` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `current`, `push`, `undo`, and `redo` are never used
[INFO] [stdout]    --> src/lib.rs:78:8
[INFO] [stdout]     |
[INFO] [stdout] 77  | impl<T: Clone> UndoQueue<T> {
[INFO] [stdout]     | --------------------------- associated items in this implementation
[INFO] [stdout] 78  |     fn new(entry: T) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     fn current(&self) -> T {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     fn push(&mut self, entry: T) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn undo(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn redo(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `undo_queue` is never read
[INFO] [stdout]    --> src/lib.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | struct InternalState {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 112 |     undo_queue: UndoQueue<Image>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InternalState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `copy`, `image`, `brush`, `undo`, and `redo` are never used
[INFO] [stdout]    --> src/lib.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl InternalState {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 117 |     pub fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn copy(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn image(&self) -> Image {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn brush(&mut self, width: usize, height: usize, color: Vec<u8>) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |     pub fn undo(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn redo(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.61s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "75e0f3103e9685712bff57dbab6c4b6a0cca6f24e1a76d2dd6a1793cfce03cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e0f3103e9685712bff57dbab6c4b6a0cca6f24e1a76d2dd6a1793cfce03cd6", kill_on_drop: false }`
[INFO] [stdout] 75e0f3103e9685712bff57dbab6c4b6a0cca6f24e1a76d2dd6a1793cfce03cd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07fdb1fbc0586eb997ff8eebb56e7f5275478b37666c3dcf429ec54e8691ee50
[INFO] running `Command { std: "docker" "start" "-a" "07fdb1fbc0586eb997ff8eebb56e7f5275478b37666c3dcf429ec54e8691ee50", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.3.27
[INFO] [stderr]    Compiling wasm-bindgen-test v0.2.50
[INFO] [stderr]    Compiling rust-webpack-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `queue` and `index` are never read
[INFO] [stdout]   --> src/lib.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct UndoQueue<T: Clone> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 73 |     queue: Vec<T>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 74 |     index: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UndoQueue` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `current`, `push`, `undo`, and `redo` are never used
[INFO] [stdout]    --> src/lib.rs:78:8
[INFO] [stdout]     |
[INFO] [stdout] 77  | impl<T: Clone> UndoQueue<T> {
[INFO] [stdout]     | --------------------------- associated items in this implementation
[INFO] [stdout] 78  |     fn new(entry: T) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     fn current(&self) -> T {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89  |     fn push(&mut self, entry: T) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn undo(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn redo(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `undo_queue` is never read
[INFO] [stdout]    --> src/lib.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | struct InternalState {
[INFO] [stdout]     |        ------------- field in this struct
[INFO] [stdout] 112 |     undo_queue: UndoQueue<Image>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InternalState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `copy`, `image`, `brush`, `undo`, and `redo` are never used
[INFO] [stdout]    --> src/lib.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl InternalState {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 117 |     pub fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn copy(&self) -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     pub fn image(&self) -> Image {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn brush(&mut self, width: usize, height: usize, color: Vec<u8>) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |     pub fn undo(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn redo(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.37s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "07fdb1fbc0586eb997ff8eebb56e7f5275478b37666c3dcf429ec54e8691ee50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fdb1fbc0586eb997ff8eebb56e7f5275478b37666c3dcf429ec54e8691ee50", kill_on_drop: false }`
[INFO] [stdout] 07fdb1fbc0586eb997ff8eebb56e7f5275478b37666c3dcf429ec54e8691ee50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ad70d7ed80bdc2dce8e82da685e2f8352608323ffb629af2f7595d00bf90e169
[INFO] running `Command { std: "docker" "start" "-a" "ad70d7ed80bdc2dce8e82da685e2f8352608323ffb629af2f7595d00bf90e169", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr] warning: fields `queue` and `index` are never read
[INFO] [stderr]   --> src/lib.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | struct UndoQueue<T: Clone> {
[INFO] [stderr]    |        --------- fields in this struct
[INFO] [stderr] 73 |     queue: Vec<T>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 74 |     index: usize,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `UndoQueue` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `current`, `push`, `undo`, and `redo` are never used
[INFO] [stderr]    --> src/lib.rs:78:8
[INFO] [stderr]     |
[INFO] [stderr] 77  | impl<T: Clone> UndoQueue<T> {
[INFO] [stderr]     | --------------------------- associated items in this implementation
[INFO] [stderr] 78  |     fn new(entry: T) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 85  |     fn current(&self) -> T {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 89  |     fn push(&mut self, entry: T) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 95  |     fn undo(&mut self) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     fn redo(&mut self) {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `undo_queue` is never read
[INFO] [stderr]    --> src/lib.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 111 | struct InternalState {
[INFO] [stderr]     |        ------------- field in this struct
[INFO] [stderr] 112 |     undo_queue: UndoQueue<Image>,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `InternalState` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `copy`, `image`, `brush`, `undo`, and `redo` are never used
[INFO] [stderr]    --> src/lib.rs:117:12
[INFO] [stderr]     |
[INFO] [stderr] 116 | impl InternalState {
[INFO] [stderr]     | ------------------ associated items in this implementation
[INFO] [stderr] 117 |     pub fn new(width: usize, height: usize) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 123 |     pub fn copy(&self) -> Self {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 129 |     pub fn image(&self) -> Image {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 133 |     pub fn brush(&mut self, width: usize, height: usize, color: Vec<u8>) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 139 |     pub fn undo(&mut self) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 143 |     pub fn redo(&mut self) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-webpack-template` (lib test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_webpack_template-a1d19d9fa81f3f39)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/app.rs (/opt/rustwide/target/debug/deps/app-683b2db3fda6c911)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test rust_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ad70d7ed80bdc2dce8e82da685e2f8352608323ffb629af2f7595d00bf90e169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad70d7ed80bdc2dce8e82da685e2f8352608323ffb629af2f7595d00bf90e169", kill_on_drop: false }`
[INFO] [stdout] ad70d7ed80bdc2dce8e82da685e2f8352608323ffb629af2f7595d00bf90e169
