[INFO] cloning repository https://github.com/hanemil1512/SudokuSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hanemil1512/SudokuSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanemil1512%2FSudokuSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanemil1512%2FSudokuSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b5591d500238f74331003d8b0a89dc9abb5608a
[INFO] testing hanemil1512/SudokuSolver against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhanemil1512%2FSudokuSolver" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hanemil1512/SudokuSolver
[INFO] finished tweaking git repo https://github.com/hanemil1512/SudokuSolver
[INFO] tweaked toml for git repo https://github.com/hanemil1512/SudokuSolver written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hanemil1512/SudokuSolver on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hanemil1512/SudokuSolver 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc
[INFO] running `Command { std: "docker" "start" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudokuSolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:39:24
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn remove_vec_replicas(v: &Vec<i8>){
[INFO] [stdout]    |                                    - help: try adding a return type: `-> bool`
[INFO] [stdout] ...
[INFO] [stdout] 39 |                 return false;
[INFO] [stdout]    |                        ^^^^^ expected `()`, found `bool`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let mut square: Vec<Vec<i8>> = vec![vec![0;9];9];
[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/main.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let mut fluff: Vec<Vec<i8>> = vec![vec![1,2,3,4,5,6,7,8,9];9];
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solved_board`
[INFO] [stdout]   --> src/main.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn solve_sudoku_board(solved_board: &Vec<Vec<i8>>){
[INFO] [stdout]    |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_solved_board`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]   --> src/main.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let mut square: Vec<Vec<i8>> = vec![vec![0;9];9];
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fluff`
[INFO] [stdout]   --> src/main.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let mut fluff: Vec<Vec<i8>> = vec![vec![1,2,3,4,5,6,7,8,9];9];
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fluff`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `box_x`
[INFO] [stdout]    --> src/main.rs:101:21
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 let box_x: i8 = y + 3*(x % 3 - y/3);
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_box_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `box_y`
[INFO] [stdout]    --> src/main.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 let box_y: i8 = y/3 + 3*(x/3);
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_box_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudokuSolver` (bin "sudokuSolver") due to 1 previous error; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc", kill_on_drop: false }`
[INFO] [stdout] 5de29c00c31ad197d0c0f99e29de1fa0377008f8f2bd2f7f8ccc0988a27094cc
