[INFO] cloning repository https://github.com/Julian-Wollersberger/sudoku_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Julian-Wollersberger/sudoku_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulian-Wollersberger%2Fsudoku_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulian-Wollersberger%2Fsudoku_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4b144efc66349f24f7640fee471e2ccc0782d9e
[INFO] testing Julian-Wollersberger/sudoku_solver against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulian-Wollersberger%2Fsudoku_solver" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Julian-Wollersberger/sudoku_solver on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Julian-Wollersberger/sudoku_solver
[INFO] finished tweaking git repo https://github.com/Julian-Wollersberger/sudoku_solver
[INFO] tweaked toml for git repo https://github.com/Julian-Wollersberger/sudoku_solver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Julian-Wollersberger/sudoku_solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b84e7f79592f3863664ab90a0c7d1b2b83bfc6ce02b55e6be360ef476bd0cb94
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b84e7f79592f3863664ab90a0c7d1b2b83bfc6ce02b55e6be360ef476bd0cb94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b84e7f79592f3863664ab90a0c7d1b2b83bfc6ce02b55e6be360ef476bd0cb94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b84e7f79592f3863664ab90a0c7d1b2b83bfc6ce02b55e6be360ef476bd0cb94", kill_on_drop: false }`
[INFO] [stdout] b84e7f79592f3863664ab90a0c7d1b2b83bfc6ce02b55e6be360ef476bd0cb94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61f21d5064e4b4708369a76b9d1a9a47a9f518ceb19ba9ed0a130031f502ff6f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "61f21d5064e4b4708369a76b9d1a9a47a9f518ceb19ba9ed0a130031f502ff6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/csv_parser.rs:56:49
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     return Err(String::from(err.description()))
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "61f21d5064e4b4708369a76b9d1a9a47a9f518ceb19ba9ed0a130031f502ff6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61f21d5064e4b4708369a76b9d1a9a47a9f518ceb19ba9ed0a130031f502ff6f", kill_on_drop: false }`
[INFO] [stdout] 61f21d5064e4b4708369a76b9d1a9a47a9f518ceb19ba9ed0a130031f502ff6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 157de48691ac21f713274cd9d6ef1d4ccfdeddcecde9f037b36022aa93209c27
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "157de48691ac21f713274cd9d6ef1d4ccfdeddcecde9f037b36022aa93209c27", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/csv_parser.rs:56:49
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     return Err(String::from(err.description()))
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "157de48691ac21f713274cd9d6ef1d4ccfdeddcecde9f037b36022aa93209c27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "157de48691ac21f713274cd9d6ef1d4ccfdeddcecde9f037b36022aa93209c27", kill_on_drop: false }`
[INFO] [stdout] 157de48691ac21f713274cd9d6ef1d4ccfdeddcecde9f037b36022aa93209c27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 67c0123c8f1a3fc2b2e6a1a28920195f7d682aaa1534ab842479540cd7f833a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67c0123c8f1a3fc2b2e6a1a28920195f7d682aaa1534ab842479540cd7f833a4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout] running 9 tests
[INFO] [stderr]   --> src/csv_parser.rs:56:49
[INFO] [stdout] test csv_parser::test::parse_cell_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test field::test::constant_assertions ... ok
[INFO] [stderr] 56 |                     return Err(String::from(err.description()))
[INFO] [stdout] test field::test::display_test ... ok
[INFO] [stderr]    |                                                 ^^^^^^^^^^^
[INFO] [stdout] test solver::possibilities_finder::test::check_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test solver::possibilities_finder::test::find_possibilities_test ... ok
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] test field::test::alternate_display_test ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sudoku_solver-b82469fce3fb8cd8)
[INFO] [stdout] test csv_parser::test::parse_csv_test ... ok
[INFO] [stdout] test solver::sudoku_solver::test::solve_example_completely ... ok
[INFO] [stdout] test solver::sudoku_solver::test::solve_step_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "67c0123c8f1a3fc2b2e6a1a28920195f7d682aaa1534ab842479540cd7f833a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c0123c8f1a3fc2b2e6a1a28920195f7d682aaa1534ab842479540cd7f833a4", kill_on_drop: false }`
[INFO] [stdout] 67c0123c8f1a3fc2b2e6a1a28920195f7d682aaa1534ab842479540cd7f833a4