[INFO] cloning repository https://github.com/vigneshsarma/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/vigneshsarma/sudoku.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvigneshsarma%2Fsudoku.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvigneshsarma%2Fsudoku.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23047de68c46fa90149140905b3471629cd000b7
[INFO] testing vigneshsarma/sudoku.rs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvigneshsarma%2Fsudoku.rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vigneshsarma/sudoku.rs 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 git repo https://github.com/vigneshsarma/sudoku.rs
[INFO] finished tweaking git repo https://github.com/vigneshsarma/sudoku.rs
[INFO] tweaked toml for git repo https://github.com/vigneshsarma/sudoku.rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/vigneshsarma/sudoku.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 79ceb5b7c2f25e9e48f4dd7f326f1c641796cef3bc34ac705d0a58f84c584965
[INFO] running `Command { std: "docker" "start" "-a" "79ceb5b7c2f25e9e48f4dd7f326f1c641796cef3bc34ac705d0a58f84c584965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79ceb5b7c2f25e9e48f4dd7f326f1c641796cef3bc34ac705d0a58f84c584965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79ceb5b7c2f25e9e48f4dd7f326f1c641796cef3bc34ac705d0a58f84c584965", kill_on_drop: false }`
[INFO] [stdout] 79ceb5b7c2f25e9e48f4dd7f326f1c641796cef3bc34ac705d0a58f84c584965
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bbe92be068c04fa583ad9216c6b13d0be7d17fd4afd2b0b8b486ba324c821a87
[INFO] running `Command { std: "docker" "start" "-a" "bbe92be068c04fa583ad9216c6b13d0be7d17fd4afd2b0b8b486ba324c821a87", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:197:28
[INFO] [stdout]     |
[INFO] [stdout] 197 |                     panic!(format!("No possible solution for {:?}", (i, j)));
[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] 197 -                     panic!(format!("No possible solution for {:?}", (i, j)));
[INFO] [stdout] 197 +                     panic!("No possible solution for {:?}", (i, j));
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:199:28
[INFO] [stdout]     |
[INFO] [stdout] 199 |                     panic!(format!("you have more options before calling me."))
[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] 199 -                     panic!(format!("you have more options before calling me."))
[INFO] [stdout] 199 +                     panic!("you have more options before calling me.")
[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 4.15s
[INFO] running `Command { std: "docker" "inspect" "bbe92be068c04fa583ad9216c6b13d0be7d17fd4afd2b0b8b486ba324c821a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe92be068c04fa583ad9216c6b13d0be7d17fd4afd2b0b8b486ba324c821a87", kill_on_drop: false }`
[INFO] [stdout] bbe92be068c04fa583ad9216c6b13d0be7d17fd4afd2b0b8b486ba324c821a87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] aab5532a49c0f9392636fb2a58afd55c5a6a7b3190159e33e35f2004d75f1814
[INFO] running `Command { std: "docker" "start" "-a" "aab5532a49c0f9392636fb2a58afd55c5a6a7b3190159e33e35f2004d75f1814", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:197:28
[INFO] [stdout]     |
[INFO] [stdout] 197 |                     panic!(format!("No possible solution for {:?}", (i, j)));
[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] 197 -                     panic!(format!("No possible solution for {:?}", (i, j)));
[INFO] [stdout] 197 +                     panic!("No possible solution for {:?}", (i, j));
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:199:28
[INFO] [stdout]     |
[INFO] [stdout] 199 |                     panic!(format!("you have more options before calling me."))
[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] 199 -                     panic!(format!("you have more options before calling me."))
[INFO] [stdout] 199 +                     panic!("you have more options before calling me.")
[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 0.53s
[INFO] running `Command { std: "docker" "inspect" "aab5532a49c0f9392636fb2a58afd55c5a6a7b3190159e33e35f2004d75f1814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aab5532a49c0f9392636fb2a58afd55c5a6a7b3190159e33e35f2004d75f1814", kill_on_drop: false }`
[INFO] [stdout] aab5532a49c0f9392636fb2a58afd55c5a6a7b3190159e33e35f2004d75f1814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bf1fbe949f14d78cb356e22eb34a586415231d112d3c72b2bf510970091edb99
[INFO] running `Command { std: "docker" "start" "-a" "bf1fbe949f14d78cb356e22eb34a586415231d112d3c72b2bf510970091edb99", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:197:28
[INFO] [stderr]     |
[INFO] [stderr] 197 |                     panic!(format!("No possible solution for {:?}", (i, j)));
[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] 197 -                     panic!(format!("No possible solution for {:?}", (i, j)));
[INFO] [stderr] 197 +                     panic!("No possible solution for {:?}", (i, j));
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/main.rs:199:28
[INFO] [stderr]     |
[INFO] [stderr] 199 |                     panic!(format!("you have more options before calling me."))
[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] 199 -                     panic!(format!("you have more options before calling me."))
[INFO] [stderr] 199 +                     panic!("you have more options before calling me.")
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (bin "sudoku" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku-5ffd0d7a61db3ea1)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_row_column_to_box ... ok
[INFO] [stdout] test test_solve_sudokus ... ok
[INFO] [stdout] test test_solve_all_of_17 has been running for over 60 seconds
[INFO] [stdout] test test_solve_all_of_17 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 88.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bf1fbe949f14d78cb356e22eb34a586415231d112d3c72b2bf510970091edb99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf1fbe949f14d78cb356e22eb34a586415231d112d3c72b2bf510970091edb99", kill_on_drop: false }`
[INFO] [stdout] bf1fbe949f14d78cb356e22eb34a586415231d112d3c72b2bf510970091edb99