[INFO] cloning repository https://github.com/Vanille-N/Sudoku-Solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vanille-N/Sudoku-Solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanille-N%2FSudoku-Solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanille-N%2FSudoku-Solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93d9a42eff507d4bece8ed51e8f69f4af481f1cd
[INFO] testing Vanille-N/Sudoku-Solver against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanille-N%2FSudoku-Solver" "/workspace/builds/worker-109/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-109/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vanille-N/Sudoku-Solver on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vanille-N/Sudoku-Solver
[INFO] finished tweaking git repo https://github.com/Vanille-N/Sudoku-Solver
[INFO] tweaked toml for git repo https://github.com/Vanille-N/Sudoku-Solver written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3faf253f0c18e2cd2748ff38817fa69fa4004f569180fc36f40b95f787cc3230
[INFO] running `Command { std: "docker" "start" "-a" "3faf253f0c18e2cd2748ff38817fa69fa4004f569180fc36f40b95f787cc3230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3faf253f0c18e2cd2748ff38817fa69fa4004f569180fc36f40b95f787cc3230", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3faf253f0c18e2cd2748ff38817fa69fa4004f569180fc36f40b95f787cc3230", kill_on_drop: false }`
[INFO] [stdout] 3faf253f0c18e2cd2748ff38817fa69fa4004f569180fc36f40b95f787cc3230
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d25d768ad47ce9574d4e22a5cb37aa955f9347565f290ae2c827e9aec75bce95
[INFO] running `Command { std: "docker" "start" "-a" "d25d768ad47ce9574d4e22a5cb37aa955f9347565f290ae2c827e9aec75bce95", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `main_sequential`
[INFO] [stdout]    --> src/main.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn main_sequential() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main_vec`
[INFO] [stdout]    --> src/main.rs:273:4
[INFO] [stdout]     |
[INFO] [stdout] 273 | fn main_vec() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main_scoped_pool`
[INFO] [stdout]    --> src/main.rs:310:4
[INFO] [stdout]     |
[INFO] [stdout] 310 | fn main_scoped_pool() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main_scoped_split`
[INFO] [stdout]    --> src/main.rs:353:4
[INFO] [stdout]     |
[INFO] [stdout] 353 | fn main_scoped_split() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 52s
[INFO] running `Command { std: "docker" "inspect" "d25d768ad47ce9574d4e22a5cb37aa955f9347565f290ae2c827e9aec75bce95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d25d768ad47ce9574d4e22a5cb37aa955f9347565f290ae2c827e9aec75bce95", kill_on_drop: false }`
[INFO] [stdout] d25d768ad47ce9574d4e22a5cb37aa955f9347565f290ae2c827e9aec75bce95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc282c33d36230267a62f1e161545ac31153ad7737a0a747d3e6e6177d0472f
[INFO] running `Command { std: "docker" "start" "-a" "dbc282c33d36230267a62f1e161545ac31153ad7737a0a747d3e6e6177d0472f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `main_sequential`
[INFO] [stdout]    --> src/main.rs:246:4
[INFO] [stdout]     |
[INFO] [stdout] 246 | fn main_sequential() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main_vec`
[INFO] [stdout]    --> src/main.rs:273:4
[INFO] [stdout]     |
[INFO] [stdout] 273 | fn main_vec() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main_scoped_pool`
[INFO] [stdout]    --> src/main.rs:310:4
[INFO] [stdout]     |
[INFO] [stdout] 310 | fn main_scoped_pool() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main_scoped_split`
[INFO] [stdout]    --> src/main.rs:353:4
[INFO] [stdout]     |
[INFO] [stdout] 353 | fn main_scoped_split() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2m 40s
[INFO] running `Command { std: "docker" "inspect" "dbc282c33d36230267a62f1e161545ac31153ad7737a0a747d3e6e6177d0472f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc282c33d36230267a62f1e161545ac31153ad7737a0a747d3e6e6177d0472f", kill_on_drop: false }`
[INFO] [stdout] dbc282c33d36230267a62f1e161545ac31153ad7737a0a747d3e6e6177d0472f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7cb91570a2c182090e0d2955e2473a23027221c760f2a6bf1f39b3d062bb62f8
[INFO] running `Command { std: "docker" "start" "-a" "7cb91570a2c182090e0d2955e2473a23027221c760f2a6bf1f39b3d062bb62f8", 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] [stderr] warning: function is never used: `main_sequential`
[INFO] [stderr]    --> src/main.rs:246:4
[INFO] [stderr]     |
[INFO] [stderr] 246 | fn main_sequential() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_vec`
[INFO] [stderr]    --> src/main.rs:273:4
[INFO] [stderr]     |
[INFO] [stderr] 273 | fn main_vec() {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_scoped_pool`
[INFO] [stderr]    --> src/main.rs:310:4
[INFO] [stderr]     |
[INFO] [stderr] 310 | fn main_scoped_pool() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_scoped_split`
[INFO] [stderr]    --> src/main.rs:353:4
[INFO] [stderr]     |
[INFO] [stderr] 353 | fn main_scoped_split() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku_solver` (bin "sudoku_solver" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku_solver-0f95c4f03b39709e)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7cb91570a2c182090e0d2955e2473a23027221c760f2a6bf1f39b3d062bb62f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb91570a2c182090e0d2955e2473a23027221c760f2a6bf1f39b3d062bb62f8", kill_on_drop: false }`
[INFO] [stdout] 7cb91570a2c182090e0d2955e2473a23027221c760f2a6bf1f39b3d062bb62f8