[INFO] cloning repository https://github.com/ItzRealZun/libresudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ItzRealZun/libresudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FItzRealZun%2Flibresudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FItzRealZun%2Flibresudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 118692dea7a4be0073986d84dece9d78a9449b77
[INFO] checking ItzRealZun/libresudoku against try#8c500c7cefd54fd11d57295f3771d576be9ee415 for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FItzRealZun%2Flibresudoku" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ItzRealZun/libresudoku
[INFO] finished tweaking git repo https://github.com/ItzRealZun/libresudoku
[INFO] tweaked toml for git repo https://github.com/ItzRealZun/libresudoku written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ItzRealZun/libresudoku on toolchain 8c500c7cefd54fd11d57295f3771d576be9ee415
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ItzRealZun/libresudoku 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" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ddf6212400dcb3ca7ae4d4ebe46608f34ab6d1a6cb70642c832cf7734150283
[INFO] running `Command { std: "docker" "start" "-a" "8ddf6212400dcb3ca7ae4d4ebe46608f34ab6d1a6cb70642c832cf7734150283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ddf6212400dcb3ca7ae4d4ebe46608f34ab6d1a6cb70642c832cf7734150283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ddf6212400dcb3ca7ae4d4ebe46608f34ab6d1a6cb70642c832cf7734150283", kill_on_drop: false }`
[INFO] [stdout] 8ddf6212400dcb3ca7ae4d4ebe46608f34ab6d1a6cb70642c832cf7734150283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfd2f2b5bdfd3f844de2bd1f3c0968e4b2fdf5b1e5d008a487f9ef782e795da2
[INFO] running `Command { std: "docker" "start" "-a" "cfd2f2b5bdfd3f844de2bd1f3c0968e4b2fdf5b1e5d008a487f9ef782e795da2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling owo-colors v4.2.2
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling color-spantrace v0.3.0
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking tracing-error v0.2.1
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.25
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking compact_str v0.8.1
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking lru v0.12.5
[INFO] [stderr]     Checking unicode-truncate v1.1.0
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking color-eyre v0.6.5
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling instability v0.3.7
[INFO] [stderr]     Checking ratatui v0.29.0
[INFO] [stderr]     Checking libresudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `Cell` is never used
[INFO] [stdout]  --> src/sudoku.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type Cell = u8;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Cell` is never used
[INFO] [stdout]  --> src/sudoku.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type Cell = u8;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIZES_COUNT` is never used
[INFO] [stdout]  --> src/sudoku.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const SIZES_COUNT: usize = 4;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIZES_COUNT` is never used
[INFO] [stdout]  --> src/sudoku.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const SIZES_COUNT: usize = 4;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_SIZE` is never used
[INFO] [stdout]  --> src/sudoku.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const DEFAULT_SIZE: usize = 9;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_SIZE` is never used
[INFO] [stdout]  --> src/sudoku.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const DEFAULT_SIZE: usize = 9;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIZES` is never used
[INFO] [stdout]  --> src/sudoku.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const SIZES: [usize; SIZES_COUNT] = [6, 9, 12, 16];
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SIZES` is never used
[INFO] [stdout]  --> src/sudoku.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const SIZES: [usize; SIZES_COUNT] = [6, 9, 12, 16];
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sudoku` is never constructed
[INFO] [stdout]  --> src/sudoku.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Sudoku {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sudoku` is never constructed
[INFO] [stdout]  --> src/sudoku.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Sudoku {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `print` are never used
[INFO] [stdout]   --> src/sudoku.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Sudoku {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(grid_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn print(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `print` are never used
[INFO] [stdout]   --> src/sudoku.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Sudoku {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(grid_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn print(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.50s
[INFO] running `Command { std: "docker" "inspect" "cfd2f2b5bdfd3f844de2bd1f3c0968e4b2fdf5b1e5d008a487f9ef782e795da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd2f2b5bdfd3f844de2bd1f3c0968e4b2fdf5b1e5d008a487f9ef782e795da2", kill_on_drop: false }`
[INFO] [stdout] cfd2f2b5bdfd3f844de2bd1f3c0968e4b2fdf5b1e5d008a487f9ef782e795da2