[INFO] cloning repository https://github.com/AlecGoncharow/eight_queens
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlecGoncharow/eight_queens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72013de890dd8ab2bdc783e3a60bd444b7c66193
[INFO] checking AlecGoncharow/eight_queens against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlecGoncharow%2Feight_queens" "/workspace/builds/worker-5/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlecGoncharow/eight_queens on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlecGoncharow/eight_queens
[INFO] finished tweaking git repo https://github.com/AlecGoncharow/eight_queens
[INFO] tweaked toml for git repo https://github.com/AlecGoncharow/eight_queens written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/AlecGoncharow/eight_queens already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Checking gfx_window_glutin v0.30.0
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling ggez v0.5.0-rc.2
[INFO] [stderr]     Checking eight_queens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextBuilder`
[INFO] [stdout]  --> src/board.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextBuilder`
[INFO] [stdout]  --> src/board.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ggez::{Context, ContextBuilder, GameResult, graphics};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_from_queens`
[INFO] [stdout]   --> src/board.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[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: `initialize_queens`
[INFO] [stdout]   --> src/board.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_from_queens`
[INFO] [stdout]    --> src/board.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialize_queens`
[INFO] [stdout]    --> src/board.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `queen`
[INFO] [stdout]    --> src/board.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn queen() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Queen`
[INFO] [stdout]    --> src/board.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     Queen,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         self.board.draw(ctx);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_from_queens`
[INFO] [stdout]   --> src/board.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[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: `initialize_queens`
[INFO] [stdout]   --> src/board.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn initialize_queens(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_from_queens`
[INFO] [stdout]    --> src/board.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn new_from_queens(queens: Vec<usize>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialize_queens`
[INFO] [stdout]    --> src/board.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn initialize_queens(&mut self, size: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `queen`
[INFO] [stdout]    --> src/board.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn queen() -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Queen`
[INFO] [stdout]    --> src/board.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     Queen,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         self.board.draw(ctx);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 26s
[INFO] running `Command { std: "docker" "inspect" "6a412db909e9d20b494334e4e984e55112282789ae47b4624bf347c7802314d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a412db909e9d20b494334e4e984e55112282789ae47b4624bf347c7802314d3", kill_on_drop: false }`
[INFO] [stdout] 6a412db909e9d20b494334e4e984e55112282789ae47b4624bf347c7802314d3