[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 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAQUIN0S%2Frust-sudoku" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AQUIN0S/rust-sudoku on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-0/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1144e443e5c122858b877df6b9bac324d384a1b8268875cbde422fc8dd65d006
[INFO] running `Command { std: "docker" "start" "-a" "1144e443e5c122858b877df6b9bac324d384a1b8268875cbde422fc8dd65d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1144e443e5c122858b877df6b9bac324d384a1b8268875cbde422fc8dd65d006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1144e443e5c122858b877df6b9bac324d384a1b8268875cbde422fc8dd65d006", kill_on_drop: false }`
[INFO] [stdout] 1144e443e5c122858b877df6b9bac324d384a1b8268875cbde422fc8dd65d006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6ebe73b9e6c3619f6805bb6ac5e81349b102c5b51f5dfcc24200c7454c5e510
[INFO] running `Command { std: "docker" "start" "-a" "d6ebe73b9e6c3619f6805bb6ac5e81349b102c5b51f5dfcc24200c7454c5e510", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[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]    = 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/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: 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] 
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "d6ebe73b9e6c3619f6805bb6ac5e81349b102c5b51f5dfcc24200c7454c5e510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6ebe73b9e6c3619f6805bb6ac5e81349b102c5b51f5dfcc24200c7454c5e510", kill_on_drop: false }`
[INFO] [stdout] d6ebe73b9e6c3619f6805bb6ac5e81349b102c5b51f5dfcc24200c7454c5e510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f1f15f5f2ebd40f61a4014c204b5aa5edd7248eac0fdd64a089f81da069cf5c1
[INFO] running `Command { std: "docker" "start" "-a" "f1f15f5f2ebd40f61a4014c204b5aa5edd7248eac0fdd64a089f81da069cf5c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[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]    = 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/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: 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] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "f1f15f5f2ebd40f61a4014c204b5aa5edd7248eac0fdd64a089f81da069cf5c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f15f5f2ebd40f61a4014c204b5aa5edd7248eac0fdd64a089f81da069cf5c1", kill_on_drop: false }`
[INFO] [stdout] f1f15f5f2ebd40f61a4014c204b5aa5edd7248eac0fdd64a089f81da069cf5c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9230e4c6e46587fbe82162a09a2346d75e7040f697f8ae3e96fd5daacf03e01b
[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" "9230e4c6e46587fbe82162a09a2346d75e7040f697f8ae3e96fd5daacf03e01b", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `check_guess`
[INFO] [stdout] 
[INFO] [stderr]   --> src/grid/mod.rs:49:12
[INFO] [stdout] running 11 tests
[INFO] [stderr]    |
[INFO] [stdout] test grid::item::tests::compare_notes ... ok
[INFO] [stderr] 49 |     pub fn check_guess(guess: &Item, solution: &Item) -> bool {
[INFO] [stdout] test grid::item::tests::compare_number ... ok
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[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: 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] warning: `sudoku` (bin "sudoku" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-317c6f5aa1875ea0)
[INFO] [stdout] test grid::item::value::tests::compare_u8 ... ok
[INFO] [stdout] test grid::item::value::tests::get ... ok
[INFO] [stdout] test grid::item::value::tests::create ... ok
[INFO] [stdout] test grid::item::value::tests::set ... ok
[INFO] [stdout] test grid::item::value::tests::compare ... ok
[INFO] [stdout] test grid::item::value::tests::panic_setting_0 - should panic ... ok
[INFO] [stdout] test grid::item::value::tests::panic_creating_10 - 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_0 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9230e4c6e46587fbe82162a09a2346d75e7040f697f8ae3e96fd5daacf03e01b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9230e4c6e46587fbe82162a09a2346d75e7040f697f8ae3e96fd5daacf03e01b", kill_on_drop: false }`
[INFO] [stdout] 9230e4c6e46587fbe82162a09a2346d75e7040f697f8ae3e96fd5daacf03e01b