Dec 04 16:05:29.624 INFO checking kaojo/sudojo against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 16:05:29.624 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 16:05:30.144 INFO [stdout] 4c8da70368d6538e9f5dec28d1e4b7d7808e20ee25c308e1bc8d28d27574127e
Dec 04 16:05:30.146 INFO running `"docker" "start" "-a" "4c8da70368d6538e9f5dec28d1e4b7d7808e20ee25c308e1bc8d28d27574127e"`
Dec 04 16:05:31.491 INFO [stderr] usermod: no changes
Dec 04 16:05:31.571 INFO [stderr]     Checking sudojo v0.1.0 (/source)
Dec 04 16:05:32.167 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.167 INFO [stderr]   --> src/sudoku/game/board.rs:51:9
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr] 51 |         writeln!(f, "Board");
Dec 04 16:05:32.167 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 16:05:32.167 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.167 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.167 INFO [stderr] 
Dec 04 16:05:32.167 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.167 INFO [stderr]   --> src/sudoku/game/board.rs:55:17
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr] 55 |                 writeln!(f, "-------------------------");
Dec 04 16:05:32.167 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.167 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.167 INFO [stderr] 
Dec 04 16:05:32.167 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.167 INFO [stderr]   --> src/sudoku/game/board.rs:59:21
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr] 59 |                     write!(f, "| ");
Dec 04 16:05:32.167 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.167 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.167 INFO [stderr] 
Dec 04 16:05:32.167 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.167 INFO [stderr]   --> src/sudoku/game/board.rs:61:17
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr] 61 | /                 write!(
Dec 04 16:05:32.167 INFO [stderr] 62 | |                     f,
Dec 04 16:05:32.167 INFO [stderr] 63 | |                     "{} ",
Dec 04 16:05:32.167 INFO [stderr] 64 | |                     match self.get_square(&Coordinate::new(x, y))
Dec 04 16:05:32.167 INFO [stderr] ...  |
Dec 04 16:05:32.167 INFO [stderr] 70 | |                     }
Dec 04 16:05:32.167 INFO [stderr] 71 | |                 );
Dec 04 16:05:32.167 INFO [stderr]    | |__________________^
Dec 04 16:05:32.167 INFO [stderr]    |
Dec 04 16:05:32.167 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.167 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.168 INFO [stderr] 
Dec 04 16:05:32.168 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.168 INFO [stderr]   --> src/sudoku/game/board.rs:73:13
Dec 04 16:05:32.168 INFO [stderr]    |
Dec 04 16:05:32.168 INFO [stderr] 73 |             writeln!(f, "|");
Dec 04 16:05:32.168 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 04 16:05:32.168 INFO [stderr]    |
Dec 04 16:05:32.168 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.168 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.168 INFO [stderr] 
Dec 04 16:05:32.302 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.302 INFO [stderr]   --> src/sudoku/game/board.rs:51:9
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr] 51 |         writeln!(f, "Board");
Dec 04 16:05:32.302 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 16:05:32.302 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.302 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.302 INFO [stderr] 
Dec 04 16:05:32.302 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.302 INFO [stderr]   --> src/sudoku/game/board.rs:55:17
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr] 55 |                 writeln!(f, "-------------------------");
Dec 04 16:05:32.302 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.302 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.302 INFO [stderr] 
Dec 04 16:05:32.302 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.302 INFO [stderr]   --> src/sudoku/game/board.rs:59:21
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr] 59 |                     write!(f, "| ");
Dec 04 16:05:32.302 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.302 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.302 INFO [stderr] 
Dec 04 16:05:32.302 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.302 INFO [stderr]   --> src/sudoku/game/board.rs:61:17
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr] 61 | /                 write!(
Dec 04 16:05:32.302 INFO [stderr] 62 | |                     f,
Dec 04 16:05:32.302 INFO [stderr] 63 | |                     "{} ",
Dec 04 16:05:32.302 INFO [stderr] 64 | |                     match self.get_square(&Coordinate::new(x, y))
Dec 04 16:05:32.302 INFO [stderr] ...  |
Dec 04 16:05:32.302 INFO [stderr] 70 | |                     }
Dec 04 16:05:32.302 INFO [stderr] 71 | |                 );
Dec 04 16:05:32.302 INFO [stderr]    | |__________________^
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.302 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.302 INFO [stderr] 
Dec 04 16:05:32.302 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 16:05:32.302 INFO [stderr]   --> src/sudoku/game/board.rs:73:13
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr] 73 |             writeln!(f, "|");
Dec 04 16:05:32.302 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 04 16:05:32.302 INFO [stderr]    |
Dec 04 16:05:32.302 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 16:05:32.302 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 16:05:32.302 INFO [stderr] 
Dec 04 16:05:32.930 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
Dec 04 16:05:32.932 INFO [stderr] su: No module specific data is present
Dec 04 16:05:33.933 INFO running `"docker" "inspect" "4c8da70368d6538e9f5dec28d1e4b7d7808e20ee25c308e1bc8d28d27574127e"`
Dec 04 16:05:34.249 INFO running `"docker" "rm" "-f" "4c8da70368d6538e9f5dec28d1e4b7d7808e20ee25c308e1bc8d28d27574127e"`
Dec 04 16:05:34.534 INFO [stdout] 4c8da70368d6538e9f5dec28d1e4b7d7808e20ee25c308e1bc8d28d27574127e