[INFO] cloning repository https://github.com/Totox00/sudoku-solver-v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Totox00/sudoku-solver-v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTotox00%2Fsudoku-solver-v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTotox00%2Fsudoku-solver-v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ae76a95456649d6e2f1776bd7fc4bca17629962
[INFO] checking Totox00/sudoku-solver-v2 against 656ccbe796ff98def9b555c118e1620c5389e3b2 for pr-133502-25
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTotox00%2Fsudoku-solver-v2" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Totox00/sudoku-solver-v2
[INFO] finished tweaking git repo https://github.com/Totox00/sudoku-solver-v2
[INFO] tweaked toml for git repo https://github.com/Totox00/sudoku-solver-v2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Totox00/sudoku-solver-v2 on toolchain 656ccbe796ff98def9b555c118e1620c5389e3b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Totox00/sudoku-solver-v2 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" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "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-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776
[INFO] running `Command { std: "docker" "start" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776" "/opt/rustwide/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776" "/opt/rustwide/cargo-home/bin/cargo" "+656ccbe796ff98def9b555c118e1620c5389e3b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking sudoku-solver-v2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `format`
[INFO] [stdout]  --> src/board.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     format, hiddens, intersections,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `format`
[INFO] [stdout]  --> src/board.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     format, hiddens, intersections,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_custom_regions` and `get_mut_cell_coords` are never used
[INFO] [stdout]    --> src/board.rs:93:12
[INFO] [stdout]     |
[INFO] [stdout]  43 | impl Board {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  93 |     pub fn new_custom_regions(regions: Vec<Region>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub fn get_mut_cell_coords(&mut self, row: usize, col: usize) -> Option<&mut u16> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_custom_regions` and `get_mut_cell_coords` are never used
[INFO] [stdout]    --> src/board.rs:93:12
[INFO] [stdout]     |
[INFO] [stdout]  43 | impl Board {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  93 |     pub fn new_custom_regions(regions: Vec<Region>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     pub fn get_mut_cell_coords(&mut self, row: usize, col: usize) -> Option<&mut u16> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776", kill_on_drop: false }`
[INFO] [stdout] 2bdcdf21eae4270cd699b1b7754ad542131a1ba24324cd42e091494504763776