[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] checking AQUIN0S/rust-sudoku against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAQUIN0S%2Frust-sudoku" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AQUIN0S/rust-sudoku on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 713fed807542c550666f5a9caa498a08269ccefbc6942631e4e22531434b8849
[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" "713fed807542c550666f5a9caa498a08269ccefbc6942631e4e22531434b8849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "713fed807542c550666f5a9caa498a08269ccefbc6942631e4e22531434b8849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713fed807542c550666f5a9caa498a08269ccefbc6942631e4e22531434b8849", kill_on_drop: false }`
[INFO] [stdout] 713fed807542c550666f5a9caa498a08269ccefbc6942631e4e22531434b8849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--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] 4b20881dc838cc5a420ec93eb816feec103650ccf71778e187a545f191616033
[INFO] running `Command { std: "docker" "start" "-a" "4b20881dc838cc5a420ec93eb816feec103650ccf71778e187a545f191616033", kill_on_drop: false }`
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking 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] [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 dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "4b20881dc838cc5a420ec93eb816feec103650ccf71778e187a545f191616033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b20881dc838cc5a420ec93eb816feec103650ccf71778e187a545f191616033", kill_on_drop: false }`
[INFO] [stdout] 4b20881dc838cc5a420ec93eb816feec103650ccf71778e187a545f191616033