[INFO] cloning repository https://github.com/aricasas/constraint
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aricasas/constraint" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fconstraint", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fconstraint'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d494bf44b0aab410777befed891ac118156d608b
[INFO] testing aricasas/constraint against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faricasas%2Fconstraint" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aricasas/constraint
[INFO] finished tweaking git repo https://github.com/aricasas/constraint
[INFO] tweaked toml for git repo https://github.com/aricasas/constraint written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aricasas/constraint on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aricasas/constraint 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" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f790692ad19dd984f32ee00d5c7d40a668bd15c68cd340a02736e53123f511c
[INFO] running `Command { std: "docker" "start" "-a" "5f790692ad19dd984f32ee00d5c7d40a668bd15c68cd340a02736e53123f511c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f790692ad19dd984f32ee00d5c7d40a668bd15c68cd340a02736e53123f511c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f790692ad19dd984f32ee00d5c7d40a668bd15c68cd340a02736e53123f511c", kill_on_drop: false }`
[INFO] [stdout] 5f790692ad19dd984f32ee00d5c7d40a668bd15c68cd340a02736e53123f511c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 390c66de4a289f69963198788567e3f7b743e3cfba098b8d06d668f389de8478
[INFO] running `Command { std: "docker" "start" "-a" "390c66de4a289f69963198788567e3f7b743e3cfba098b8d06d668f389de8478", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling constraint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `check_distinct` is never used
[INFO] [stdout]   --> src/sudoku.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn check_distinct(array: &[i32]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use constraint::sudoku::{self, Sudoku};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "390c66de4a289f69963198788567e3f7b743e3cfba098b8d06d668f389de8478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390c66de4a289f69963198788567e3f7b743e3cfba098b8d06d668f389de8478", kill_on_drop: false }`
[INFO] [stdout] 390c66de4a289f69963198788567e3f7b743e3cfba098b8d06d668f389de8478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de49fd88db8443997755b3ee3f1e76f2a2885a5217ef1f75e3abcc0856dfb1ef
[INFO] running `Command { std: "docker" "start" "-a" "de49fd88db8443997755b3ee3f1e76f2a2885a5217ef1f75e3abcc0856dfb1ef", kill_on_drop: false }`
[INFO] [stdout] warning: function `check_distinct` is never used
[INFO] [stdout]   --> src/sudoku.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn check_distinct(array: &[i32]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling constraint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use constraint::sudoku::{self, Sudoku};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_distinct` is never used
[INFO] [stdout]   --> src/sudoku.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn check_distinct(array: &[i32]) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "de49fd88db8443997755b3ee3f1e76f2a2885a5217ef1f75e3abcc0856dfb1ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de49fd88db8443997755b3ee3f1e76f2a2885a5217ef1f75e3abcc0856dfb1ef", kill_on_drop: false }`
[INFO] [stdout] de49fd88db8443997755b3ee3f1e76f2a2885a5217ef1f75e3abcc0856dfb1ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01d6333ff5578fb1072566629d1f7be8824e682182f2a0a8d5e60917b7da18ed
[INFO] running `Command { std: "docker" "start" "-a" "01d6333ff5578fb1072566629d1f7be8824e682182f2a0a8d5e60917b7da18ed", kill_on_drop: false }`
[INFO] [stderr] warning: function `check_distinct` is never used
[INFO] [stderr]   --> src/sudoku.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn check_distinct(array: &[i32]) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `constraint` (lib) generated 1 warning
[INFO] [stderr] warning: `constraint` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | use constraint::sudoku::{self, Sudoku};
[INFO] [stderr]   |                          ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `constraint` (bin "constraint" test) generated 1 warning (run `cargo fix --bin "constraint" -p constraint --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/constraint-04da3002e62d4a0b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test sudoku::tests::test_empty has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "01d6333ff5578fb1072566629d1f7be8824e682182f2a0a8d5e60917b7da18ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01d6333ff5578fb1072566629d1f7be8824e682182f2a0a8d5e60917b7da18ed", kill_on_drop: false }`
[INFO] [stdout] 01d6333ff5578fb1072566629d1f7be8824e682182f2a0a8d5e60917b7da18ed
