[INFO] cloning repository https://github.com/lil-shimon/rust-maze-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lil-shimon/rust-maze-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flil-shimon%2Frust-maze-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flil-shimon%2Frust-maze-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81372446d8e9ee5226838b1d3cfdfe430abb4d5c
[INFO] checking lil-shimon/rust-maze-game against try#fafe42c59556a4233f03dd0d900b575a9afeece8 for pr-143764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flil-shimon%2Frust-maze-game" "/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/lil-shimon/rust-maze-game
[INFO] finished tweaking git repo https://github.com/lil-shimon/rust-maze-game
[INFO] tweaked toml for git repo https://github.com/lil-shimon/rust-maze-game written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lil-shimon/rust-maze-game on toolchain fafe42c59556a4233f03dd0d900b575a9afeece8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lil-shimon/rust-maze-game 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" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ddbeeeaf6aa2460d7a6ce3acc998c62408773a1d8d75d7b10a90e2e11d72154
[INFO] running `Command { std: "docker" "start" "-a" "8ddbeeeaf6aa2460d7a6ce3acc998c62408773a1d8d75d7b10a90e2e11d72154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ddbeeeaf6aa2460d7a6ce3acc998c62408773a1d8d75d7b10a90e2e11d72154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ddbeeeaf6aa2460d7a6ce3acc998c62408773a1d8d75d7b10a90e2e11d72154", kill_on_drop: false }`
[INFO] [stdout] 8ddbeeeaf6aa2460d7a6ce3acc998c62408773a1d8d75d7b10a90e2e11d72154
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+fafe42c59556a4233f03dd0d900b575a9afeece8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8e9f0b6c14d74f980d01fe737ba303610be8193043160c505052f8e51f4387e
[INFO] running `Command { std: "docker" "start" "-a" "b8e9f0b6c14d74f980d01fe737ba303610be8193043160c505052f8e51f4387e", kill_on_drop: false }`
[INFO] [stderr]     Checking maze-game-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `MazeCell`, `MazeKind`, and `Maze`
[INFO] [stdout]  --> src/player.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::maze::{Maze, MazeCell, MazeKind};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::maze::MazeKind::Start`
[INFO] [stdout]  --> src/player.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::maze::MazeKind::Start;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MazeCell`, `MazeKind`, and `Maze`
[INFO] [stdout]  --> src/player.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::maze::{Maze, MazeCell, MazeKind};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::maze::MazeKind::Start`
[INFO] [stdout]  --> src/player.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::maze::MazeKind::Start;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MazeKind` is never used
[INFO] [stdout]  --> src/maze.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum MazeKind {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MazeFlag` is never used
[INFO] [stdout]   --> src/maze.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum MazeFlag {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MazeDirection` is never used
[INFO] [stdout]   --> src/maze.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum MazeDirection {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `MazeKindAnnotation` is never used
[INFO] [stdout]   --> src/maze.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub type MazeKindAnnotation = BTreeMap<String, MazeKind>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MazeCell` is never constructed
[INFO] [stdout]   --> src/maze.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct MazeCell {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MazeRow` is never constructed
[INFO] [stdout]   --> src/maze.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct MazeRow {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Maze` is never constructed
[INFO] [stdout]   --> src/maze.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub struct Maze {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `create` and `compare` are never used
[INFO] [stdout]   --> src/maze.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl MazeCell {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 54 |     fn create(kind: MazeKind, flag: MazeFlag) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn compare(a: &MazeKind, b: &MazeKind) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `create` is never used
[INFO] [stdout]   --> src/maze.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | impl MazeRow {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 67 |     fn create(cells: Vec<MazeCell>) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `init` is never used
[INFO] [stdout]   --> src/maze.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl Maze {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 73 |     fn init(width: usize, height: usize, rows: Vec<MazeRow>) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Menu` is never used
[INFO] [stdout]  --> src/menu.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Menu {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/player.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Player {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/maze.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         for i in 0..5 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/maze.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         for i in 0..5
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/maze.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |             for i in 0..5
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Wall` and `End` are never constructed
[INFO] [stdout]   --> src/maze.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub enum MazeKind {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 8  |     Path,
[INFO] [stdout] 9  |     Wall,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 10 |     Start,
[INFO] [stdout] 11 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MazeKind` has a derived impl for the trait `Debug`, 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: enum `MazeDirection` is never used
[INFO] [stdout]   --> src/maze.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum MazeDirection {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `MazeKindAnnotation` is never used
[INFO] [stdout]   --> src/maze.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub type MazeKindAnnotation = BTreeMap<String, MazeKind>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `compare` is never used
[INFO] [stdout]   --> src/maze.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl MazeCell {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn compare(a: &MazeKind, b: &MazeKind) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Menu` is never used
[INFO] [stdout]  --> src/menu.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Menu {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]  --> src/player.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Player {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "b8e9f0b6c14d74f980d01fe737ba303610be8193043160c505052f8e51f4387e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e9f0b6c14d74f980d01fe737ba303610be8193043160c505052f8e51f4387e", kill_on_drop: false }`
[INFO] [stdout] b8e9f0b6c14d74f980d01fe737ba303610be8193043160c505052f8e51f4387e