[INFO] cloning repository https://github.com/klaatu01/maze-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/klaatu01/maze-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklaatu01%2Fmaze-rs", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f452bae65d20f9c47956e1b84447b16680053b2b
[INFO] checking klaatu01/maze-rs against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklaatu01%2Fmaze-rs" "/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/klaatu01/maze-rs
[INFO] finished tweaking git repo https://github.com/klaatu01/maze-rs
[INFO] tweaked toml for git repo https://github.com/klaatu01/maze-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/klaatu01/maze-rs on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/klaatu01/maze-rs 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/disp/ascii.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let mut chunk = &grid.index(x, y);
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/disp/ascii.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let mut chunk = &grid.index(x, y);
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/disp/display.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let width = self.window.size().width;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/types/grid.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         for j in 0..self.y {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/types/grid.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             for i in 0..self.x {}
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/disp/display.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let width = self.window.size().width;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/types/grid.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |         for j in 0..self.y {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/types/grid.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             for i in 0..self.x {}
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/types/grid.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => false,
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/types/grid.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             Dir::North => match self.north(cell) {
[INFO] [stdout]     |             ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 121 |             Dir::East => match self.east(cell) {
[INFO] [stdout]     |             --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 125 |             Dir::South => match self.south(cell) {
[INFO] [stdout]     |             ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 129 |             Dir::West => match self.west(cell) {
[INFO] [stdout]     |             --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 133 |             _ => false,
[INFO] [stdout]     |             ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         _ => panic!("Algorithm Not Implemented"),
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Algorithm::Binary => bta,
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 25 |         Algorithm::Sidewinder => sidewinder,
[INFO] [stdout]    |         --------------------- matches some of the same values
[INFO] [stdout] 26 |         _ => panic!("Algorithm Not Implemented"),
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Display` is never constructed
[INFO] [stdout]  --> src/disp/display.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Display {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `update` are never used
[INFO] [stdout]   --> src/disp/display.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Display {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 12 |     pub fn new(grid: Grid<Chunk>, window: PistonWindow) -> Display {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn update(&mut self, event: Event) -> () {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/types/grid.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |             _ => false,
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/types/grid.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             Dir::North => match self.north(cell) {
[INFO] [stdout]     |             ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 121 |             Dir::East => match self.east(cell) {
[INFO] [stdout]     |             --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 125 |             Dir::South => match self.south(cell) {
[INFO] [stdout]     |             ---------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 129 |             Dir::West => match self.west(cell) {
[INFO] [stdout]     |             --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 133 |             _ => false,
[INFO] [stdout]     |             ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         _ => panic!("Algorithm Not Implemented"),
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Algorithm::Binary => bta,
[INFO] [stdout]    |         ----------------- matches some of the same values
[INFO] [stdout] 25 |         Algorithm::Sidewinder => sidewinder,
[INFO] [stdout]    |         --------------------- matches some of the same values
[INFO] [stdout] 26 |         _ => panic!("Algorithm Not Implemented"),
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Display` is never constructed
[INFO] [stdout]  --> src/disp/display.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Display {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `update` are never used
[INFO] [stdout]   --> src/disp/display.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Display {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 12 |     pub fn new(grid: Grid<Chunk>, window: PistonWindow) -> Display {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn update(&mut self, event: Event) -> () {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grid_build_time`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let grid_build_time = grid_build_instant.elapsed().as_millis();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grid_build_time`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[clap(short = "a", long = "algorithm", default_value = "bta")]
[INFO] [stdout] 17 | |     algorithm: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grid_build_time`
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let grid_build_time = grid_build_instant.elapsed().as_millis();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grid_build_time`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maze` (bin "maze-gen") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[clap(short = "a", long = "algorithm", default_value = "bta")]
[INFO] [stdout] 17 | |     algorithm: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `maze` (bin "maze-gen" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "c2d1943d6d6a7ec0567e269ac22f919be892dfe0c866b908a7719f5616319044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2d1943d6d6a7ec0567e269ac22f919be892dfe0c866b908a7719f5616319044", kill_on_drop: false }`
[INFO] [stdout] c2d1943d6d6a7ec0567e269ac22f919be892dfe0c866b908a7719f5616319044
