[INFO] cloning repository https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiushenwuzhu-Alpaca%2FKnight-s-Tour", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b8b6836e2b5e430521588411e8d0918aa2b9811
[INFO] checking Liushenwuzhu-Alpaca/Knight-s-Tour against try#a611f2a14e38407ec6717a86a01424ee6fc80762 for pr-154992-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiushenwuzhu-Alpaca%2FKnight-s-Tour" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour
[INFO] finished tweaking git repo https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour
[INFO] tweaked toml for git repo https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour on toolchain a611f2a14e38407ec6717a86a01424ee6fc80762
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Liushenwuzhu-Alpaca/Knight-s-Tour 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" "+a611f2a14e38407ec6717a86a01424ee6fc80762" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:754:22
[INFO] [stdout]     |
[INFO] [stdout] 754 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:774:22
[INFO] [stdout]     |
[INFO] [stdout] 774 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:785:23
[INFO] [stdout]     |
[INFO] [stdout] 785 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:801:22
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:812:23
[INFO] [stdout]     |
[INFO] [stdout] 812 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:828:22
[INFO] [stdout]     |
[INFO] [stdout] 828 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:848:22
[INFO] [stdout]     |
[INFO] [stdout] 848 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:859:23
[INFO] [stdout]     |
[INFO] [stdout] 859 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:875:22
[INFO] [stdout]     |
[INFO] [stdout] 875 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:886:23
[INFO] [stdout]     |
[INFO] [stdout] 886 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_board_size`, `solve`, and `dfs` are never used
[INFO] [stdout]   --> src/horse.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl KnightTour {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn get_board_size(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn solve(&mut self, start_x: i32, start_y: i32) -> bool {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn dfs(&mut self, x: i32, y: i32, step: i32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gui.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn view(&self) -> Element<Message> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn view(&self) -> Element<'_, Message> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:754:22
[INFO] [stdout]     |
[INFO] [stdout] 754 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:774:22
[INFO] [stdout]     |
[INFO] [stdout] 774 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:785:23
[INFO] [stdout]     |
[INFO] [stdout] 785 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:801:22
[INFO] [stdout]     |
[INFO] [stdout] 801 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:812:23
[INFO] [stdout]     |
[INFO] [stdout] 812 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:828:22
[INFO] [stdout]     |
[INFO] [stdout] 828 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:848:22
[INFO] [stdout]     |
[INFO] [stdout] 848 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:859:23
[INFO] [stdout]     |
[INFO] [stdout] 859 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:875:22
[INFO] [stdout]     |
[INFO] [stdout] 875 |     fn active(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `style`
[INFO] [stdout]    --> src/gui.rs:886:23
[INFO] [stdout]     |
[INFO] [stdout] 886 |     fn hovered(&self, style: &Self::Style) -> iced::widget::button::Appearance {
[INFO] [stdout]     |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_style`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_board_size` is never used
[INFO] [stdout]   --> src/horse.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl KnightTour {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn get_board_size(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/gui.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn view(&self) -> Element<Message> {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn view(&self) -> Element<'_, Message> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 33s
[INFO] running `Command { std: "docker" "inspect" "a03550b54af6a46b31eedfceacce3df4bcdea33f08845c0436c8f6d753ecbfd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03550b54af6a46b31eedfceacce3df4bcdea33f08845c0436c8f6d753ecbfd1", kill_on_drop: false }`
[INFO] [stdout] a03550b54af6a46b31eedfceacce3df4bcdea33f08845c0436c8f6d753ecbfd1
