[INFO] cloning repository https://github.com/ydm/sudoku
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ydm/sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fydm%2Fsudoku", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fydm%2Fsudoku'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9063f626dcb7189900939fc2545747c25458d1bd
[INFO] testing ydm/sudoku against 1.83.0 for beta-1.84.0-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fydm%2Fsudoku" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ydm/sudoku on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ydm/sudoku
[INFO] finished tweaking git repo https://github.com/ydm/sudoku
[INFO] tweaked toml for git repo https://github.com/ydm/sudoku written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ydm/sudoku 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cb68bc47623382bf23887b266c939c298b7fde54f5bb7486f1c1f9f676e44c7
[INFO] running `Command { std: "docker" "start" "-a" "7cb68bc47623382bf23887b266c939c298b7fde54f5bb7486f1c1f9f676e44c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cb68bc47623382bf23887b266c939c298b7fde54f5bb7486f1c1f9f676e44c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cb68bc47623382bf23887b266c939c298b7fde54f5bb7486f1c1f9f676e44c7", kill_on_drop: false }`
[INFO] [stdout] 7cb68bc47623382bf23887b266c939c298b7fde54f5bb7486f1c1f9f676e44c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4dc84bb68697d94806ee9079eb7e7020aac2845873e99ec04c568b66f12ced2
[INFO] running `Command { std: "docker" "start" "-a" "b4dc84bb68697d94806ee9079eb7e7020aac2845873e99ec04c568b66f12ced2", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "b4dc84bb68697d94806ee9079eb7e7020aac2845873e99ec04c568b66f12ced2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4dc84bb68697d94806ee9079eb7e7020aac2845873e99ec04c568b66f12ced2", kill_on_drop: false }`
[INFO] [stdout] b4dc84bb68697d94806ee9079eb7e7020aac2845873e99ec04c568b66f12ced2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f92284e1337180041c7ddcb1e197f53c4bce69fb9c6f1badac348ab4990fdb2
[INFO] running `Command { std: "docker" "start" "-a" "7f92284e1337180041c7ddcb1e197f53c4bce69fb9c6f1badac348ab4990fdb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Sudoku`
[INFO] [stdout]    --> src/rules.rs:134:36
[INFO] [stdout]     |
[INFO] [stdout] 134 |     use crate::structure::{Solver, Sudoku};
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "7f92284e1337180041c7ddcb1e197f53c4bce69fb9c6f1badac348ab4990fdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f92284e1337180041c7ddcb1e197f53c4bce69fb9c6f1badac348ab4990fdb2", kill_on_drop: false }`
[INFO] [stdout] 7f92284e1337180041c7ddcb1e197f53c4bce69fb9c6f1badac348ab4990fdb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8575502357e4dc360beb90dc2fda1dc3719c505eb826c13af455b446f94a6ad0
[INFO] running `Command { std: "docker" "start" "-a" "8575502357e4dc360beb90dc2fda1dc3719c505eb826c13af455b446f94a6ad0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Sudoku`
[INFO] [stderr]    --> src/rules.rs:134:36
[INFO] [stderr]     |
[INFO] [stderr] 134 |     use crate::structure::{Solver, Sudoku};
[INFO] [stderr]     |                                    ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sudoku` (lib test) generated 1 warning (run `cargo fix --lib -p sudoku --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sudoku-746385e91cbadbb4)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test rules::test::test_row_rule ... ok
[INFO] [stdout] test rules::test::test_col_rule ... ok
[INFO] [stdout] test structure::tests::test_sudoku_display ... ok
[INFO] [stdout] test structure::tests::test_sudoku_parse ... ok
[INFO] [stdout] test structure::tests::test_sudoku_solve ... ok
[INFO] [stdout] test structure::tests::test_cell_shut ... ok
[INFO] [stdout] test structure::tests::test_cell_shut_open ... ok
[INFO] [stdout] test structure::tests::test_cell_solve ... ok
[INFO] [stdout] test structure::tests::test_cell_is_open ... ok
[INFO] [stdout] test rules::test::test_rules ... ok
[INFO] [stdout] test rules::test::test_square_rule ... ok
[INFO] [stdout] test rules::test::test_single_opt_square_rule ... ok
[INFO] [stdout] test structure::tests::test_cell_is_open_panic - should panic ... ok
[INFO] [stdout] test structure::tests::test_cell_is_open_panic2 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sudoku-827ed403ba5bb977)
[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] [stderr]    Doc-tests sudoku
[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" "8575502357e4dc360beb90dc2fda1dc3719c505eb826c13af455b446f94a6ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8575502357e4dc360beb90dc2fda1dc3719c505eb826c13af455b446f94a6ad0", kill_on_drop: false }`
[INFO] [stdout] 8575502357e4dc360beb90dc2fda1dc3719c505eb826c13af455b446f94a6ad0