[INFO] cloning repository https://github.com/AQUIN0S/rust-sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AQUIN0S/rust-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAQUIN0S%2Frust-sudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAQUIN0S%2Frust-sudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a62884f211ee66bce14c6843a2ed3b0a8f84e8e7
[INFO] testing AQUIN0S/rust-sudoku against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAQUIN0S%2Frust-sudoku" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AQUIN0S/rust-sudoku on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AQUIN0S/rust-sudoku
[INFO] finished tweaking git repo https://github.com/AQUIN0S/rust-sudoku
[INFO] tweaked toml for git repo https://github.com/AQUIN0S/rust-sudoku written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/AQUIN0S/rust-sudoku already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45f41a3fbe5f316f48fcaf920dfc9884e73d2cb14a93f53826d5d005cac6a9b8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "45f41a3fbe5f316f48fcaf920dfc9884e73d2cb14a93f53826d5d005cac6a9b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f41a3fbe5f316f48fcaf920dfc9884e73d2cb14a93f53826d5d005cac6a9b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f41a3fbe5f316f48fcaf920dfc9884e73d2cb14a93f53826d5d005cac6a9b8", kill_on_drop: false }`
[INFO] [stdout] 45f41a3fbe5f316f48fcaf920dfc9884e73d2cb14a93f53826d5d005cac6a9b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acab638db54dbda8f4b725f3e56023b476c45081fb9acd09a9744a1730e1a123
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "acab638db54dbda8f4b725f3e56023b476c45081fb9acd09a9744a1730e1a123", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_fixed_number`
[INFO] [stdout]   --> src/grid/item/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn set_fixed_number(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_note`
[INFO] [stdout]   --> src/grid/item/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn toggle_note(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_guess`
[INFO] [stdout]   --> src/grid/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn check_guess(guess: &Item, solution: &Item) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_note`
[INFO] [stdout]   --> src/grid/mod.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn toggle_note(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_number`
[INFO] [stdout]   --> src/grid/mod.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn toggle_number(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_fixed_number`
[INFO] [stdout]   --> src/grid/mod.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn set_fixed_number(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SudokuPuzzle`
[INFO] [stdout]  --> src/puzzle.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct SudokuPuzzle {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "acab638db54dbda8f4b725f3e56023b476c45081fb9acd09a9744a1730e1a123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acab638db54dbda8f4b725f3e56023b476c45081fb9acd09a9744a1730e1a123", kill_on_drop: false }`
[INFO] [stdout] acab638db54dbda8f4b725f3e56023b476c45081fb9acd09a9744a1730e1a123
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c95a062787a9d9ab96a20c178f50ee5729997d5c0d7ce891f098b3b2392502df
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c95a062787a9d9ab96a20c178f50ee5729997d5c0d7ce891f098b3b2392502df", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_fixed_number`
[INFO] [stdout]   --> src/grid/item/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn set_fixed_number(&mut self, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_guess`
[INFO] [stdout]   --> src/grid/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn check_guess(guess: &Item, solution: &Item) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_note`
[INFO] [stdout]   --> src/grid/mod.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn toggle_note(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `toggle_number`
[INFO] [stdout]   --> src/grid/mod.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn toggle_number(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_fixed_number`
[INFO] [stdout]   --> src/grid/mod.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn set_fixed_number(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SudokuPuzzle`
[INFO] [stdout]  --> src/puzzle.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct SudokuPuzzle {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "c95a062787a9d9ab96a20c178f50ee5729997d5c0d7ce891f098b3b2392502df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c95a062787a9d9ab96a20c178f50ee5729997d5c0d7ce891f098b3b2392502df", kill_on_drop: false }`
[INFO] [stdout] c95a062787a9d9ab96a20c178f50ee5729997d5c0d7ce891f098b3b2392502df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77bbc3b2473de6d49d67edccfad9ddcd9361e79b043642a669255f9b703234d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "77bbc3b2473de6d49d67edccfad9ddcd9361e79b043642a669255f9b703234d9", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `set_fixed_number`
[INFO] [stderr]   --> src/grid/item/mod.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn set_fixed_number(&mut self, value: u8) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `check_guess`
[INFO] [stderr]   --> src/grid/mod.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn check_guess(guess: &Item, solution: &Item) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `toggle_note`
[INFO] [stderr]   --> src/grid/mod.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn toggle_note(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `toggle_number`
[INFO] [stderr]   --> src/grid/mod.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn toggle_number(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_fixed_number`
[INFO] [stderr]   --> src/grid/mod.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn set_fixed_number(&mut self, value: u8, row: usize, col: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SudokuPuzzle`
[INFO] [stderr]  --> src/puzzle.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct SudokuPuzzle {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (bin "sudoku" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-93c0040d4807823f)
[INFO] [stdout] running 11 tests
[INFO] [stdout] test grid::item::value::tests::compare ... ok
[INFO] [stdout] test grid::item::value::tests::create ... ok
[INFO] [stdout] test grid::item::value::tests::compare_u8 ... ok
[INFO] [stdout] test grid::item::tests::compare_number ... ok
[INFO] [stdout] test grid::item::value::tests::get ... ok
[INFO] [stdout] test grid::item::tests::compare_notes ... ok
[INFO] [stdout] test grid::item::value::tests::set ... ok
[INFO] [stdout] test grid::item::value::tests::panic_setting_0 - should panic ... ok
[INFO] [stdout] test grid::item::value::tests::panic_creating_0 - should panic ... ok
[INFO] [stdout] test grid::item::value::tests::panic_setting_10 - should panic ... ok
[INFO] [stdout] test grid::item::value::tests::panic_creating_10 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77bbc3b2473de6d49d67edccfad9ddcd9361e79b043642a669255f9b703234d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77bbc3b2473de6d49d67edccfad9ddcd9361e79b043642a669255f9b703234d9", kill_on_drop: false }`
[INFO] [stdout] 77bbc3b2473de6d49d67edccfad9ddcd9361e79b043642a669255f9b703234d9