[INFO] cloning repository https://github.com/dannyhvc/sudoku_solver_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dannyhvc/sudoku_solver_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannyhvc%2Fsudoku_solver_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannyhvc%2Fsudoku_solver_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 605a29c5569ecfb2c05af895a61d9fbb8000bec5
[INFO] checking dannyhvc/sudoku_solver_rs against 98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3 for pr-160235-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannyhvc%2Fsudoku_solver_rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dannyhvc/sudoku_solver_rs
[INFO] finished tweaking git repo https://github.com/dannyhvc/sudoku_solver_rs
[INFO] tweaked toml for git repo https://github.com/dannyhvc/sudoku_solver_rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dannyhvc/sudoku_solver_rs on toolchain 98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dannyhvc/sudoku_solver_rs 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" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc_version v0.4.0
[INFO] [stderr]   Downloaded semver v1.0.23
[INFO] [stderr]   Downloaded rstest_macros v0.19.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.12
[INFO] [stderr]   Downloaded rstest v0.19.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.83
[INFO] [stderr]   Downloaded futures-macro v0.3.30
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.3
[INFO] [stderr]   Downloaded windows-targets v0.52.5
[INFO] [stderr]   Downloaded anstyle v1.0.7
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[INFO] [stderr]   Downloaded futures-io v0.3.30
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[INFO] [stderr]   Downloaded glob v0.3.1
[INFO] [stderr]   Downloaded futures-timer v3.0.3
[INFO] [stderr]   Downloaded autocfg v1.3.0
[INFO] [stderr]   Downloaded env_logger v0.11.3
[INFO] [stderr]   Downloaded relative-path v1.9.3
[INFO] [stderr]   Downloaded humantime v2.1.0
[INFO] [stderr]   Downloaded anstyle-parse v0.2.4
[INFO] [stderr]   Downloaded futures-channel v0.3.30
[INFO] [stderr]   Downloaded anstream v0.6.14
[INFO] [stderr]   Downloaded pin-project-lite v0.2.14
[INFO] [stderr]   Downloaded futures-executor v0.3.30
[INFO] [stderr]   Downloaded quote v1.0.36
[INFO] [stderr]   Downloaded log v0.4.21
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.17
[INFO] [stderr]   Downloaded futures v0.3.30
[INFO] [stderr]   Downloaded memchr v2.7.2
[INFO] [stderr]   Downloaded futures-util v0.3.30
[INFO] [stderr]   Downloaded syn v2.0.65
[INFO] [stderr]   Downloaded regex v1.10.4
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[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.52.5
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.52.5
[INFO] [stderr]   Downloaded windows_i686_gnullvm v0.52.5
[INFO] [stderr]   Downloaded regex-automata v0.4.6
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.52.5
[INFO] [stderr]   Downloaded libc v0.2.155
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.52.5
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.52.5
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[INFO] [stderr]   Downloaded windows_i686_msvc v0.52.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21
[INFO] running `Command { std: "docker" "start" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21", 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" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21" "/opt/rustwide/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21", 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" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21" "/opt/rustwide/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.83
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rstest_macros v0.19.0
[INFO] [stderr]    Compiling syn v2.0.65
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking anstyle-query v1.0.3
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking env_logger v0.11.3
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/generator.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, info};
[INFO] [stdout]   |                  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rstest v0.19.0
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]  --> src/generator.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use log::{debug, info};
[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 variable: `mangled_board`
[INFO] [stdout]    --> src/test/mod.rs:104:47
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn test_remove_column_duplicates(_logger: (), mangled_board: Board) {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mangled_board`
[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 26.63s
[INFO] running `Command { std: "docker" "inspect" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21", kill_on_drop: false }`
[INFO] [stdout] 4f1d9b3beff1eae6e4373440246e52365479845f25941be01f7fd6a7e7b7eb21