Dec 19 14:37:36.606 INFO checking kaojo/sudojo against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 14:37:36.606 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/kaojo/sudojo:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:37:37.162 INFO [stdout] 33b8221a3fbf09e005ba6b8cc52d6a06aa750e23e70e211807a95c6c4cd28b5f
Dec 19 14:37:37.164 INFO running `"docker" "start" "-a" "33b8221a3fbf09e005ba6b8cc52d6a06aa750e23e70e211807a95c6c4cd28b5f"`
Dec 19 14:37:38.748 INFO [stderr]     Checking sudojo v0.1.0 (/opt/crater/workdir)
Dec 19 14:37:39.032 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.032 INFO [stderr]   --> src/sudoku/game/board.rs:51:9
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr] 51 |         writeln!(f, "Board");
Dec 19 14:37:39.032 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 14:37:39.032 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.032 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 19 14:37:39.032 INFO [stderr] 
Dec 19 14:37:39.032 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.032 INFO [stderr]   --> src/sudoku/game/board.rs:55:17
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr] 55 |                 writeln!(f, "-------------------------");
Dec 19 14:37:39.032 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.032 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 19 14:37:39.032 INFO [stderr] 
Dec 19 14:37:39.032 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.032 INFO [stderr]   --> src/sudoku/game/board.rs:59:21
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr] 59 |                     write!(f, "| ");
Dec 19 14:37:39.032 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.032 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 19 14:37:39.032 INFO [stderr] 
Dec 19 14:37:39.032 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.032 INFO [stderr]   --> src/sudoku/game/board.rs:61:17
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr] 61 | /                 write!(
Dec 19 14:37:39.032 INFO [stderr] 62 | |                     f,
Dec 19 14:37:39.032 INFO [stderr] 63 | |                     "{} ",
Dec 19 14:37:39.032 INFO [stderr] 64 | |                     match self.get_square(&Coordinate::new(x, y))
Dec 19 14:37:39.032 INFO [stderr] ...  |
Dec 19 14:37:39.032 INFO [stderr] 70 | |                     }
Dec 19 14:37:39.032 INFO [stderr] 71 | |                 );
Dec 19 14:37:39.032 INFO [stderr]    | |__________________^
Dec 19 14:37:39.032 INFO [stderr]    |
Dec 19 14:37:39.032 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.032 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 19 14:37:39.032 INFO [stderr] 
Dec 19 14:37:39.032 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.033 INFO [stderr]   --> src/sudoku/game/board.rs:73:13
Dec 19 14:37:39.033 INFO [stderr]    |
Dec 19 14:37:39.033 INFO [stderr] 73 |             writeln!(f, "|");
Dec 19 14:37:39.033 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 14:37:39.033 INFO [stderr]    |
Dec 19 14:37:39.033 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.033 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 19 14:37:39.033 INFO [stderr] 
Dec 19 14:37:39.112 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.112 INFO [stderr]   --> src/sudoku/game/board.rs:51:9
Dec 19 14:37:39.112 INFO [stderr]    |
Dec 19 14:37:39.112 INFO [stderr] 51 |         writeln!(f, "Board");
Dec 19 14:37:39.112 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:37:39.112 INFO [stderr]    |
Dec 19 14:37:39.112 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 14:37:39.112 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.112 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 19 14:37:39.112 INFO [stderr] 
Dec 19 14:37:39.112 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.112 INFO [stderr]   --> src/sudoku/game/board.rs:55:17
Dec 19 14:37:39.112 INFO [stderr]    |
Dec 19 14:37:39.112 INFO [stderr] 55 |                 writeln!(f, "-------------------------");
Dec 19 14:37:39.112 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:37:39.113 INFO [stderr]    |
Dec 19 14:37:39.113 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.113 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 19 14:37:39.114 INFO [stderr] 
Dec 19 14:37:39.114 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.114 INFO [stderr]   --> src/sudoku/game/board.rs:59:21
Dec 19 14:37:39.114 INFO [stderr]    |
Dec 19 14:37:39.114 INFO [stderr] 59 |                     write!(f, "| ");
Dec 19 14:37:39.114 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^
Dec 19 14:37:39.114 INFO [stderr]    |
Dec 19 14:37:39.114 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.114 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 19 14:37:39.114 INFO [stderr] 
Dec 19 14:37:39.114 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.114 INFO [stderr]   --> src/sudoku/game/board.rs:61:17
Dec 19 14:37:39.114 INFO [stderr]    |
Dec 19 14:37:39.114 INFO [stderr] 61 | /                 write!(
Dec 19 14:37:39.114 INFO [stderr] 62 | |                     f,
Dec 19 14:37:39.114 INFO [stderr] 63 | |                     "{} ",
Dec 19 14:37:39.114 INFO [stderr] 64 | |                     match self.get_square(&Coordinate::new(x, y))
Dec 19 14:37:39.114 INFO [stderr] ...  |
Dec 19 14:37:39.114 INFO [stderr] 70 | |                     }
Dec 19 14:37:39.114 INFO [stderr] 71 | |                 );
Dec 19 14:37:39.114 INFO [stderr]    | |__________________^
Dec 19 14:37:39.114 INFO [stderr]    |
Dec 19 14:37:39.114 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.114 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 19 14:37:39.114 INFO [stderr] 
Dec 19 14:37:39.118 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:37:39.118 INFO [stderr]   --> src/sudoku/game/board.rs:73:13
Dec 19 14:37:39.118 INFO [stderr]    |
Dec 19 14:37:39.118 INFO [stderr] 73 |             writeln!(f, "|");
Dec 19 14:37:39.118 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^
Dec 19 14:37:39.118 INFO [stderr]    |
Dec 19 14:37:39.118 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:37:39.118 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 19 14:37:39.118 INFO [stderr] 
Dec 19 14:37:39.360 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Dec 19 14:37:39.909 INFO running `"docker" "inspect" "33b8221a3fbf09e005ba6b8cc52d6a06aa750e23e70e211807a95c6c4cd28b5f"`
Dec 19 14:37:40.195 INFO running `"docker" "rm" "-f" "33b8221a3fbf09e005ba6b8cc52d6a06aa750e23e70e211807a95c6c4cd28b5f"`
Dec 19 14:37:40.555 INFO [stdout] 33b8221a3fbf09e005ba6b8cc52d6a06aa750e23e70e211807a95c6c4cd28b5f