[INFO] cloning repository https://github.com/icheered/SudokuSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icheered/SudokuSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficheered%2FSudokuSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficheered%2FSudokuSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cae2aaa84c15ad7dfa2205908feed299d85da41
[INFO] testing icheered/SudokuSolver against 1.83.0 for beta-1.84.0-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficheered%2FSudokuSolver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/icheered/SudokuSolver on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/icheered/SudokuSolver
[INFO] finished tweaking git repo https://github.com/icheered/SudokuSolver
[INFO] tweaked toml for git repo https://github.com/icheered/SudokuSolver written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/icheered/SudokuSolver 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded eyre v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5398143f61ca3f5f46418b75daa0f893b740aa02b9dfaff5fcfbdf4ae5a1460f
[INFO] running `Command { std: "docker" "start" "-a" "5398143f61ca3f5f46418b75daa0f893b740aa02b9dfaff5fcfbdf4ae5a1460f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5398143f61ca3f5f46418b75daa0f893b740aa02b9dfaff5fcfbdf4ae5a1460f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5398143f61ca3f5f46418b75daa0f893b740aa02b9dfaff5fcfbdf4ae5a1460f", kill_on_drop: false }`
[INFO] [stdout] 5398143f61ca3f5f46418b75daa0f893b740aa02b9dfaff5fcfbdf4ae5a1460f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 509e231f188fdc3bd71b033cb1f8422ad320fc4a5d47bb94a31946589a249bc9
[INFO] running `Command { std: "docker" "start" "-a" "509e231f188fdc3bd71b033cb1f8422ad320fc4a5d47bb94a31946589a249bc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling eyre v0.6.9
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling object v0.32.1
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling indicatif v0.17.7
[INFO] [stderr]    Compiling tracing-error v0.2.0
[INFO] [stderr]    Compiling color-spantrace v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling color-eyre v0.6.2
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id`, `clues`, and `difficulty` are never read
[INFO] [stdout]   --> src/utility.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Record {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     pub id: i64,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub clues: i8,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |     pub difficulty: f64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.74s
[INFO] running `Command { std: "docker" "inspect" "509e231f188fdc3bd71b033cb1f8422ad320fc4a5d47bb94a31946589a249bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509e231f188fdc3bd71b033cb1f8422ad320fc4a5d47bb94a31946589a249bc9", kill_on_drop: false }`
[INFO] [stdout] 509e231f188fdc3bd71b033cb1f8422ad320fc4a5d47bb94a31946589a249bc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 823c48ab401d11f038d4787b7aa841203cbabdb9f879e28497da84ebdb4a9fb1
[INFO] running `Command { std: "docker" "start" "-a" "823c48ab401d11f038d4787b7aa841203cbabdb9f879e28497da84ebdb4a9fb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id`, `clues`, and `difficulty` are never read
[INFO] [stdout]   --> src/utility.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Record {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 21 |     pub id: i64,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub clues: i8,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |     pub difficulty: f64,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "823c48ab401d11f038d4787b7aa841203cbabdb9f879e28497da84ebdb4a9fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823c48ab401d11f038d4787b7aa841203cbabdb9f879e28497da84ebdb4a9fb1", kill_on_drop: false }`
[INFO] [stdout] 823c48ab401d11f038d4787b7aa841203cbabdb9f879e28497da84ebdb4a9fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 36cc2681c6ad163c1f70053d58c19041826191d6208770f938236f201272b92e
[INFO] running `Command { std: "docker" "start" "-a" "36cc2681c6ad163c1f70053d58c19041826191d6208770f938236f201272b92e", kill_on_drop: false }`
[INFO] [stderr] warning: fields `id`, `clues`, and `difficulty` are never read
[INFO] [stderr]   --> src/utility.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Record {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 21 |     pub id: i64,
[INFO] [stderr]    |         ^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub clues: i8,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 25 |     pub difficulty: f64,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Record` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku_solver` (bin "sudoku_solver" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_solver-b829712f552b76d4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "36cc2681c6ad163c1f70053d58c19041826191d6208770f938236f201272b92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36cc2681c6ad163c1f70053d58c19041826191d6208770f938236f201272b92e", kill_on_drop: false }`
[INFO] [stdout] 36cc2681c6ad163c1f70053d58c19041826191d6208770f938236f201272b92e