[INFO] cloning repository https://github.com/tinyCatzilla/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tinyCatzilla/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtinyCatzilla%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtinyCatzilla%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00acbb36685ca401c4e4535684c176b68980c2a5
[INFO] checking tinyCatzilla/sudoku against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtinyCatzilla%2Fsudoku" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tinyCatzilla/sudoku
[INFO] finished tweaking git repo https://github.com/tinyCatzilla/sudoku
[INFO] tweaked toml for git repo https://github.com/tinyCatzilla/sudoku written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tinyCatzilla/sudoku on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tinyCatzilla/sudoku 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_str_bytes v6.5.1
[INFO] [stderr]   Downloaded serde_derive v1.0.171
[INFO] [stderr]   Downloaded serde v1.0.171
[INFO] [stderr]   Downloaded gnuplot v0.0.39
[INFO] [stderr]   Downloaded syn v2.0.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f267c3d1bac68694967fd3f956e696a35aae58168150af279709f1f8b3ab1466
[INFO] running `Command { std: "docker" "start" "-a" "f267c3d1bac68694967fd3f956e696a35aae58168150af279709f1f8b3ab1466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f267c3d1bac68694967fd3f956e696a35aae58168150af279709f1f8b3ab1466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f267c3d1bac68694967fd3f956e696a35aae58168150af279709f1f8b3ab1466", kill_on_drop: false }`
[INFO] [stdout] f267c3d1bac68694967fd3f956e696a35aae58168150af279709f1f8b3ab1466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 223050e4ce90b7f1f659c8ea26da57bd22f84b499da092dd137403a0504635b4
[INFO] running `Command { std: "docker" "start" "-a" "223050e4ce90b7f1f659c8ea26da57bd22f84b499da092dd137403a0504635b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling memchr v2.5.0
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[INFO] [stderr]     Checking itoa v1.0.9
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[INFO] [stderr]    Compiling rustix v0.38.4
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[INFO] [stderr]     Checking either v1.8.1
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[INFO] [stderr]     Checking bitflags v2.3.3
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[INFO] [stderr]    Compiling rayon-core v1.11.0
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[INFO] [stderr]     Checking color-spantrace v0.2.0
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[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking prettytable-rs v0.10.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `cross` is never used
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn cross<A: Clone  + std::fmt::Display, B: Clone + std::fmt::Display>(a: &[A], b: &[B]) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `coords_to_cell` is never used
[INFO] [stdout]   --> src/utils.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn coords_to_cell(row: usize, col: usize) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cell_to_coords` is never used
[INFO] [stdout]   --> src/utils.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn cell_to_coords(cell: &str) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stdout] warning: unused imports: `Cell`, `Row`, and `Table`
[INFO] [stdout]  --> src/main.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use prettytable::{Table, Row, Cell};
[INFO] [stdout]   |                   ^^^^^  ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `index` is never read
[INFO] [stdout]    --> src/sudoku.rs:579:25
[INFO] [stdout]     |
[INFO] [stdout] 579 |                         index -= 1;
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut reader = BufReader::new(file);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let result = solver.solve(&mut sudoku_clone);
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cross` is never used
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn cross<A: Clone  + std::fmt::Display, B: Clone + std::fmt::Display>(a: &[A], b: &[B]) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `coords_to_cell` is never used
[INFO] [stdout]   --> src/utils.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn coords_to_cell(row: usize, col: usize) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cell_to_coords` is never used
[INFO] [stdout]   --> src/utils.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn cell_to_coords(cell: &str) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cell`, `Row`, and `Table`
[INFO] [stdout]  --> src/main.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use prettytable::{Table, Row, Cell};
[INFO] [stdout]   |                   ^^^^^  ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `index` is never read
[INFO] [stdout]    --> src/sudoku.rs:579:25
[INFO] [stdout]     |
[INFO] [stdout] 579 |                         index -= 1;
[INFO] [stdout]     |                         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut reader = BufReader::new(file);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |             let result = solver.solve(&mut sudoku_clone);
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.77s
[INFO] running `Command { std: "docker" "inspect" "223050e4ce90b7f1f659c8ea26da57bd22f84b499da092dd137403a0504635b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223050e4ce90b7f1f659c8ea26da57bd22f84b499da092dd137403a0504635b4", kill_on_drop: false }`
[INFO] [stdout] 223050e4ce90b7f1f659c8ea26da57bd22f84b499da092dd137403a0504635b4
