[INFO] updating cached repository https://github.com/Spongie/soduku_solver
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8cd3c3245426b1911092c204cc7818031d3a3f52
[INFO] testing Spongie/soduku_solver against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpongie%2Fsoduku_solver" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Spongie/soduku_solver on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Spongie/soduku_solver
[INFO] finished tweaking git repo https://github.com/Spongie/soduku_solver
[INFO] tweaked toml for git repo https://github.com/Spongie/soduku_solver written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Spongie/soduku_solver already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] d8c4110d3d1f3d039f3930f4facefc43887d5e5a86398c703c2e6f9dfd3fddbd
[INFO] running `"docker" "start" "-a" "d8c4110d3d1f3d039f3930f4facefc43887d5e5a86398c703c2e6f9dfd3fddbd"`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling libmath v0.2.1
[INFO] [stderr]    Compiling soduku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     for y in 0..9 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/main.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn get_values_on_column(board: SodukuBoard, column: usize) -> Vec<i32> {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `column`
[INFO] [stderr]   --> src/main.rs:39:45
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn get_values_on_column(board: SodukuBoard, column: usize) -> Vec<i32> {
[INFO] [stderr]    |                                             ^^^^^^ help: consider prefixing with an underscore: `_column`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut board = [
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut moves = Vec::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.45s
[INFO] running `"docker" "inspect" "d8c4110d3d1f3d039f3930f4facefc43887d5e5a86398c703c2e6f9dfd3fddbd"`
[INFO] running `"docker" "rm" "-f" "d8c4110d3d1f3d039f3930f4facefc43887d5e5a86398c703c2e6f9dfd3fddbd"`
[INFO] [stdout] d8c4110d3d1f3d039f3930f4facefc43887d5e5a86398c703c2e6f9dfd3fddbd
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7f39d9506a082fab86b9c24bb2d242695c5735c3ee9e2c9e5bad7e680c80ac42
[INFO] running `"docker" "start" "-a" "7f39d9506a082fab86b9c24bb2d242695c5735c3ee9e2c9e5bad7e680c80ac42"`
[INFO] [stderr]    Compiling soduku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     for y in 0..9 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]   --> src/main.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn get_values_on_column(board: SodukuBoard, column: usize) -> Vec<i32> {
[INFO] [stderr]    |                         ^^^^^ help: consider prefixing with an underscore: `_board`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `column`
[INFO] [stderr]   --> src/main.rs:39:45
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn get_values_on_column(board: SodukuBoard, column: usize) -> Vec<i32> {
[INFO] [stderr]    |                                             ^^^^^^ help: consider prefixing with an underscore: `_column`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut board = [
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut moves = Vec::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "7f39d9506a082fab86b9c24bb2d242695c5735c3ee9e2c9e5bad7e680c80ac42"`
[INFO] running `"docker" "rm" "-f" "7f39d9506a082fab86b9c24bb2d242695c5735c3ee9e2c9e5bad7e680c80ac42"`
[INFO] [stdout] 7f39d9506a082fab86b9c24bb2d242695c5735c3ee9e2c9e5bad7e680c80ac42
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 11f26e51ee4b5f69d3140e00b387a3e49e0ecdb2cc851ac35984d1a0ceb7a42a
[INFO] running `"docker" "start" "-a" "11f26e51ee4b5f69d3140e00b387a3e49e0ecdb2cc851ac35984d1a0ceb7a42a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/soduku_solver-0c35f5ed2b14859d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "11f26e51ee4b5f69d3140e00b387a3e49e0ecdb2cc851ac35984d1a0ceb7a42a"`
[INFO] running `"docker" "rm" "-f" "11f26e51ee4b5f69d3140e00b387a3e49e0ecdb2cc851ac35984d1a0ceb7a42a"`
[INFO] [stdout] 11f26e51ee4b5f69d3140e00b387a3e49e0ecdb2cc851ac35984d1a0ceb7a42a