[INFO] cloning repository https://github.com/Mungkorn12/SudokuSolverProject
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mungkorn12/SudokuSolverProject" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMungkorn12%2FSudokuSolverProject", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMungkorn12%2FSudokuSolverProject'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c6b641acb3e7069e8fd5a3245b20dc4b23c1dd4
[INFO] checking Mungkorn12/SudokuSolverProject against try#b28cc4eb48a6415b914e8ad0308be255ff8d73ed for pr-156508
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMungkorn12%2FSudokuSolverProject" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Mungkorn12/SudokuSolverProject
[INFO] finished tweaking git repo https://github.com/Mungkorn12/SudokuSolverProject
[INFO] tweaked toml for git repo https://github.com/Mungkorn12/SudokuSolverProject written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Mungkorn12/SudokuSolverProject on toolchain b28cc4eb48a6415b914e8ad0308be255ff8d73ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Mungkorn12/SudokuSolverProject 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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Mungkorn12/SudokuSolverProject against try#b28cc4eb48a6415b914e8ad0308be255ff8d73ed for pr-156508
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMungkorn12%2FSudokuSolverProject" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Mungkorn12/SudokuSolverProject
[INFO] finished tweaking git repo https://github.com/Mungkorn12/SudokuSolverProject
[INFO] tweaked toml for git repo https://github.com/Mungkorn12/SudokuSolverProject written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Mungkorn12/SudokuSolverProject on toolchain b28cc4eb48a6415b914e8ad0308be255ff8d73ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Mungkorn12/SudokuSolverProject 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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_termios v0.1.3
[INFO] [stderr]   Downloaded termion v4.0.2
[INFO] [stderr]   Downloaded figlet-rs v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c139554442aff8652f58e1ddbb349fb6a9ff3d9fb248e22df5ad91d83ae5686
[INFO] running `Command { std: "docker" "start" "-a" "0c139554442aff8652f58e1ddbb349fb6a9ff3d9fb248e22df5ad91d83ae5686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c139554442aff8652f58e1ddbb349fb6a9ff3d9fb248e22df5ad91d83ae5686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c139554442aff8652f58e1ddbb349fb6a9ff3d9fb248e22df5ad91d83ae5686", kill_on_drop: false }`
[INFO] [stdout] 0c139554442aff8652f58e1ddbb349fb6a9ff3d9fb248e22df5ad91d83ae5686
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75c946b01af54e2ddd205169d93f7e4681364ff2dd13a4d5c7abd3b8f864b006
[INFO] running `Command { std: "docker" "start" "-a" "75c946b01af54e2ddd205169d93f7e4681364ff2dd13a4d5c7abd3b8f864b006", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking figlet-rs v0.1.5
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking termion v4.0.2
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking funpar_sudoku_proejct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `box_units` is never read
[INFO] [stdout]   --> src/rayon_parallel_solver.rs:63:29
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let mut box_units = Vec::new();
[INFO] [stdout]    |                             ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 74 |         box_units = cross(&box_rows, &box_cols);
[INFO] [stdout]    |         --------- `box_units` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/rayon_parallel_solver.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let rows = "ABCDEFGHI".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cols`
[INFO] [stdout]    --> src/rayon_parallel_solver.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let cols = "123456789".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let rows = "ABCDEFGHI".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cols`
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let cols = "123456789".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/nonpar_solver.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let rows = "ABCDEFGHI".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cols`
[INFO] [stdout]    --> src/nonpar_solver.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |     let cols = "123456789".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/rayon_parallel_solver.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_board` is never used
[INFO] [stdout]   --> src/sequential_solver.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl SudokuSolver {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn print_board(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/sequential_solver.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:200:15
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub(crate) fn print_board(board: &str) {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:205:4
[INFO] [stdout]     |
[INFO] [stdout] 205 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_board` is never used
[INFO] [stdout]    --> src/nonpar_solver.rs:161:15
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub(crate) fn format_board(board: &str) -> String {
[INFO] [stdout]     |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/nonpar_solver.rs:184:15
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub(crate) fn print_board(board: &str) {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/nonpar_solver.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `box_units` is never read
[INFO] [stdout]   --> src/rayon_parallel_solver.rs:63:29
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let mut box_units = Vec::new();
[INFO] [stdout]    |                             ^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 74 |         box_units = cross(&box_rows, &box_cols);
[INFO] [stdout]    |         --------- `box_units` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/rayon_parallel_solver.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let rows = "ABCDEFGHI".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cols`
[INFO] [stdout]    --> src/rayon_parallel_solver.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let cols = "123456789".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let rows = "ABCDEFGHI".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cols`
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let cols = "123456789".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rows`
[INFO] [stdout]    --> src/nonpar_solver.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |     let rows = "ABCDEFGHI".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cols`
[INFO] [stdout]    --> src/nonpar_solver.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |     let cols = "123456789".chars().collect::<Vec<_>>();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/rayon_parallel_solver.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_board` is never used
[INFO] [stdout]   --> src/sequential_solver.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl SudokuSolver {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn print_board(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/sequential_solver.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:200:15
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub(crate) fn print_board(board: &str) {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/crossbeam_par_solver.rs:205:4
[INFO] [stdout]     |
[INFO] [stdout] 205 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_board` is never used
[INFO] [stdout]    --> src/nonpar_solver.rs:161:15
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub(crate) fn format_board(board: &str) -> String {
[INFO] [stdout]     |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_board` is never used
[INFO] [stdout]    --> src/nonpar_solver.rs:184:15
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub(crate) fn print_board(board: &str) {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/nonpar_solver.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "75c946b01af54e2ddd205169d93f7e4681364ff2dd13a4d5c7abd3b8f864b006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c946b01af54e2ddd205169d93f7e4681364ff2dd13a4d5c7abd3b8f864b006", kill_on_drop: false }`
[INFO] [stdout] 75c946b01af54e2ddd205169d93f7e4681364ff2dd13a4d5c7abd3b8f864b006
