[INFO] cloning repository https://github.com/andresharpe/sudoku-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andresharpe/sudoku-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandresharpe%2Fsudoku-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandresharpe%2Fsudoku-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e298f36f85c142edd5f41311952134e1a74d2136 [INFO] testing andresharpe/sudoku-rs against beta-2026-04-21 for beta-1.96-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandresharpe%2Fsudoku-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/andresharpe/sudoku-rs [INFO] finished tweaking git repo https://github.com/andresharpe/sudoku-rs [INFO] tweaked toml for git repo https://github.com/andresharpe/sudoku-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/andresharpe/sudoku-rs on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/andresharpe/sudoku-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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded hermit-abi v0.1.13 [INFO] [stderr] Downloaded clap v2.33.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e810c45ed91c7ccc296dd925ab4e5b6e4e79bf24f4e22bdd66d38ac3aeb9eb3 [INFO] running `Command { std: "docker" "start" "-a" "1e810c45ed91c7ccc296dd925ab4e5b6e4e79bf24f4e22bdd66d38ac3aeb9eb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e810c45ed91c7ccc296dd925ab4e5b6e4e79bf24f4e22bdd66d38ac3aeb9eb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e810c45ed91c7ccc296dd925ab4e5b6e4e79bf24f4e22bdd66d38ac3aeb9eb3", kill_on_drop: false }` [INFO] [stdout] 1e810c45ed91c7ccc296dd925ab4e5b6e4e79bf24f4e22bdd66d38ac3aeb9eb3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 83b3ec6f11d61e1809dea40d38ca7ec31c3a66fe70770fa05402f4b4221844c1 [INFO] running `Command { std: "docker" "start" "-a" "83b3ec6f11d61e1809dea40d38ca7ec31c3a66fe70770fa05402f4b4221844c1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.33.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling sudoku-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/main.rs:61:105 [INFO] [stdout] | [INFO] [stdout] 61 | println!("Elapsed time: {} seconds. Puzzles completed: {}. Speed: {:.3} puzzles/second.", secs, COMPLETED, speed ); [INFO] [stdout] | ^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.61s [INFO] running `Command { std: "docker" "inspect" "83b3ec6f11d61e1809dea40d38ca7ec31c3a66fe70770fa05402f4b4221844c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83b3ec6f11d61e1809dea40d38ca7ec31c3a66fe70770fa05402f4b4221844c1", kill_on_drop: false }` [INFO] [stdout] 83b3ec6f11d61e1809dea40d38ca7ec31c3a66fe70770fa05402f4b4221844c1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e60d4bfa3453068cbce0676729d0681c913afd2babf05bb6b9517a03c5d15f6c [INFO] running `Command { std: "docker" "start" "-a" "e60d4bfa3453068cbce0676729d0681c913afd2babf05bb6b9517a03c5d15f6c", kill_on_drop: false }` [INFO] [stderr] Compiling sudoku-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/main.rs:61:105 [INFO] [stdout] | [INFO] [stdout] 61 | println!("Elapsed time: {} seconds. Puzzles completed: {}. Speed: {:.3} puzzles/second.", secs, COMPLETED, speed ); [INFO] [stdout] | ^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] running `Command { std: "docker" "inspect" "e60d4bfa3453068cbce0676729d0681c913afd2babf05bb6b9517a03c5d15f6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e60d4bfa3453068cbce0676729d0681c913afd2babf05bb6b9517a03c5d15f6c", kill_on_drop: false }` [INFO] [stdout] e60d4bfa3453068cbce0676729d0681c913afd2babf05bb6b9517a03c5d15f6c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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-2026-04-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 11c30194a3a0b5f28802dceb43f9335f158401036b00b5a4c0204a00b37b9965 [INFO] running `Command { std: "docker" "start" "-a" "11c30194a3a0b5f28802dceb43f9335f158401036b00b5a4c0204a00b37b9965", kill_on_drop: false }` [INFO] [stderr] warning: creating a shared reference to mutable static [INFO] [stderr] --> src/main.rs:61:105 [INFO] [stderr] | [INFO] [stderr] 61 | println!("Elapsed time: {} seconds. Puzzles completed: {}. Speed: {:.3} puzzles/second.", secs, COMPLETED, speed ); [INFO] [stderr] | ^^^^^^^^^ shared reference to mutable static [INFO] [stderr] | [INFO] [stderr] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `sudoku-rs` (bin "sudoku-rs" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku_rs-6d6100d978f090c9) [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" "11c30194a3a0b5f28802dceb43f9335f158401036b00b5a4c0204a00b37b9965", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11c30194a3a0b5f28802dceb43f9335f158401036b00b5a4c0204a00b37b9965", kill_on_drop: false }` [INFO] [stdout] 11c30194a3a0b5f28802dceb43f9335f158401036b00b5a4c0204a00b37b9965