[INFO] fetching crate rudoku-core 0.1.0...
[INFO] testing rudoku-core-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rudoku-core 0.1.0 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate rudoku-core 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rudoku-core 0.1.0
[INFO] finished tweaking crates.io crate rudoku-core 0.1.0
[INFO] tweaked toml for crates.io crate rudoku-core 0.1.0 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 001c17ae2d715fb75f7351e949d29fa055abf940168487dc94a2dd0c5efef870
[INFO] running `Command { std: "docker" "start" "-a" "001c17ae2d715fb75f7351e949d29fa055abf940168487dc94a2dd0c5efef870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "001c17ae2d715fb75f7351e949d29fa055abf940168487dc94a2dd0c5efef870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001c17ae2d715fb75f7351e949d29fa055abf940168487dc94a2dd0c5efef870", kill_on_drop: false }`
[INFO] [stdout] 001c17ae2d715fb75f7351e949d29fa055abf940168487dc94a2dd0c5efef870
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 849604aecc8023e4bf1b9de1263b7edfb5e2e7678b13401a334f45f0ff472ced
[INFO] running `Command { std: "docker" "start" "-a" "849604aecc8023e4bf1b9de1263b7edfb5e2e7678b13401a334f45f0ff472ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.9.0
[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 rudoku-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/sudoku/mod.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 37 -             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stdout] 37 +             panic!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/sudoku/mod.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 39 -             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stdout] 39 +             panic!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.75s
[INFO] running `Command { std: "docker" "inspect" "849604aecc8023e4bf1b9de1263b7edfb5e2e7678b13401a334f45f0ff472ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "849604aecc8023e4bf1b9de1263b7edfb5e2e7678b13401a334f45f0ff472ced", kill_on_drop: false }`
[INFO] [stdout] 849604aecc8023e4bf1b9de1263b7edfb5e2e7678b13401a334f45f0ff472ced
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba80854666db80b044d5c47a6c5c212d7016eaad74d47d208da0fa3dd4847ed3
[INFO] running `Command { std: "docker" "start" "-a" "ba80854666db80b044d5c47a6c5c212d7016eaad74d47d208da0fa3dd4847ed3", kill_on_drop: false }`
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/sudoku/mod.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 37 -             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stdout] 37 +             panic!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/sudoku/mod.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 39 -             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stdout] 39 +             panic!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rudoku-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/sudoku/mod.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 37 -             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stdout] 37 +             panic!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n);
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/sudoku/mod.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 39 -             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stdout] 39 +             panic!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "ba80854666db80b044d5c47a6c5c212d7016eaad74d47d208da0fa3dd4847ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba80854666db80b044d5c47a6c5c212d7016eaad74d47d208da0fa3dd4847ed3", kill_on_drop: false }`
[INFO] [stdout] ba80854666db80b044d5c47a6c5c212d7016eaad74d47d208da0fa3dd4847ed3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8bdd42ca66f8c267a76ed9fa5a0e241f83798a27c0ef753513301eb4a4fdcc08
[INFO] running `Command { std: "docker" "start" "-a" "8bdd42ca66f8c267a76ed9fa5a0e241f83798a27c0ef753513301eb4a4fdcc08", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/sudoku/mod.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 37 -             panic!(format!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n));
[INFO] [stderr] 37 +             panic!("It is impossible to create a Sudoku with an unique solution, with less than 17 hints. Input was {} hints.", n);
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/sudoku/mod.rs:39:20
[INFO] [stderr]    |
[INFO] [stderr] 39 |             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 39 -             panic!(format!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n))
[INFO] [stderr] 39 +             panic!("Impossible to create a Sudoku with {} hints. A Sudoku has just 81 fields.", n)
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `rudoku-core` (lib) generated 2 warnings
[INFO] [stderr] warning: `rudoku-core` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rudoku_core-03cad253738abb80)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test sudoku::sudoku_value::tests::to_string ... ok
[INFO] [stdout] test sudoku::sudoku_value::tests::get_number_array ... ok
[INFO] [stdout] test sudoku::sudoku_value::tests::iterator ... ok
[INFO] [stdout] test sudoku::tests::check_false ... ok
[INFO] [stdout] test sudoku::sudoku_value::tests::from_i32 ... ok
[INFO] [stdout] test sudoku::tests::count_other ... ok
[INFO] [stdout] test sudoku::tests::decimate_81 ... ok
[INFO] [stdout] test sudoku::tests::count_9 ... ok
[INFO] [stdout] test sudoku::tests::from_string ... ok
[INFO] [stdout] test sudoku::tests::solved_false ... ok
[INFO] [stdout] test sudoku::tests::get_column ... ok
[INFO] [stdout] test sudoku::tests::get_square ... ok
[INFO] [stdout] test sudoku::tests::check_true ... ok
[INFO] [stdout] test util::tests::has_only_unique_elements_3 ... ok
[INFO] [stdout] test util::tests::has_only_unique_elements_1 ... ok
[INFO] [stdout] test util::tests::has_only_unique_elements_2 ... ok
[INFO] [stdout] test sudoku::tests::get_row ... ok
[INFO] [stdout] test sudoku::tests::solved_true ... ok
[INFO] [stdout] test sudoku::tests::check_panic - should panic ... ok
[INFO] [stdout] test sudoku::tests::decimate_16 - should panic ... ok
[INFO] [stdout] test sudoku::tests::decimate_82 - should panic ... ok
[INFO] [stdout] test sudoku::tests::solve ... ok
[INFO] [stdout] test sudoku::tests::fill_random ... ok
[INFO] [stdout] test sudoku::tests::fill_check ... ok
[INFO] [stdout] test sudoku::tests::decimate_30 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 23.52s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rudoku-core
[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" "8bdd42ca66f8c267a76ed9fa5a0e241f83798a27c0ef753513301eb4a4fdcc08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bdd42ca66f8c267a76ed9fa5a0e241f83798a27c0ef753513301eb4a4fdcc08", kill_on_drop: false }`
[INFO] [stdout] 8bdd42ca66f8c267a76ed9fa5a0e241f83798a27c0ef753513301eb4a4fdcc08