[INFO] cloning repository https://github.com/grantlindberg4/sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grantlindberg4/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantlindberg4%2Fsudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantlindberg4%2Fsudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3a9134dd29a6a6b89443a19a398ca474f474c74
[INFO] testing grantlindberg4/sudoku-solver against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrantlindberg4%2Fsudoku-solver" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grantlindberg4/sudoku-solver on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grantlindberg4/sudoku-solver
[INFO] finished tweaking git repo https://github.com/grantlindberg4/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/grantlindberg4/sudoku-solver written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate git repo https://github.com/grantlindberg4/sudoku-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2617f6128ab2f4852e5ebd1d6310bf016c1b6ab3c4c07330aacdf4032ddebed3
[INFO] running `Command { std: "docker" "start" "-a" "2617f6128ab2f4852e5ebd1d6310bf016c1b6ab3c4c07330aacdf4032ddebed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2617f6128ab2f4852e5ebd1d6310bf016c1b6ab3c4c07330aacdf4032ddebed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2617f6128ab2f4852e5ebd1d6310bf016c1b6ab3c4c07330aacdf4032ddebed3", kill_on_drop: false }`
[INFO] [stdout] 2617f6128ab2f4852e5ebd1d6310bf016c1b6ab3c4c07330aacdf4032ddebed3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f28fbae3e5fa8d01028a6521cb046601b830803c2e4b45b5a5ad4050830eac70
[INFO] running `Command { std: "docker" "start" "-a" "f28fbae3e5fa8d01028a6521cb046601b830803c2e4b45b5a5ad4050830eac70", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `isFixed`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     isFixed: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `isFixed` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     isFixed: bool,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isFixed` should have a snake case name
[INFO] [stdout]  --> src/main.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn new(value: u32, isFixed: bool) -> Self {
[INFO] [stdout]   |                        ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isFixed` should have a snake case name
[INFO] [stdout]   --> src/main.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let isFixed = match value {
[INFO] [stdout]    |                 ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "f28fbae3e5fa8d01028a6521cb046601b830803c2e4b45b5a5ad4050830eac70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f28fbae3e5fa8d01028a6521cb046601b830803c2e4b45b5a5ad4050830eac70", kill_on_drop: false }`
[INFO] [stdout] f28fbae3e5fa8d01028a6521cb046601b830803c2e4b45b5a5ad4050830eac70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2e296f1e127b749199bc5d24512b2a437413846e7d51dd6d325791222ff65da
[INFO] running `Command { std: "docker" "start" "-a" "a2e296f1e127b749199bc5d24512b2a437413846e7d51dd6d325791222ff65da", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `isFixed`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     isFixed: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `isFixed` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     isFixed: bool,
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isFixed` should have a snake case name
[INFO] [stdout]  --> src/main.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn new(value: u32, isFixed: bool) -> Self {
[INFO] [stdout]   |                        ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isFixed` should have a snake case name
[INFO] [stdout]   --> src/main.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |             let isFixed = match value {
[INFO] [stdout]    |                 ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "a2e296f1e127b749199bc5d24512b2a437413846e7d51dd6d325791222ff65da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e296f1e127b749199bc5d24512b2a437413846e7d51dd6d325791222ff65da", kill_on_drop: false }`
[INFO] [stdout] a2e296f1e127b749199bc5d24512b2a437413846e7d51dd6d325791222ff65da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2dacdd0fa28daddf4d8c5c294c879819c34ba01a4c3f081e7b3efd1dd374f8eb
[INFO] running `Command { std: "docker" "start" "-a" "2dacdd0fa28daddf4d8c5c294c879819c34ba01a4c3f081e7b3efd1dd374f8eb", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `isFixed`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     isFixed: bool,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `isFixed` should have a snake case name
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     isFixed: bool,
[INFO] [stderr]   |     ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `isFixed` should have a snake case name
[INFO] [stderr]  --> src/main.rs:7:24
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn new(value: u32, isFixed: bool) -> Self {
[INFO] [stderr]   |                        ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `isFixed` should have a snake case name
[INFO] [stderr]   --> src/main.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let isFixed = match value {
[INFO] [stderr]    |                 ^^^^^^^ help: convert the identifier to snake case: `is_fixed`
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku_solver` (bin "sudoku_solver" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku_solver-83da0f39bd48c215)
[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" "2dacdd0fa28daddf4d8c5c294c879819c34ba01a4c3f081e7b3efd1dd374f8eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dacdd0fa28daddf4d8c5c294c879819c34ba01a4c3f081e7b3efd1dd374f8eb", kill_on_drop: false }`
[INFO] [stdout] 2dacdd0fa28daddf4d8c5c294c879819c34ba01a4c3f081e7b3efd1dd374f8eb