Dec 19 09:49:31.585 INFO checking ruggeri/sudoku_solver against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 09:49:31.585 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/ruggeri/sudoku_solver:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:49:32.139 INFO [stdout] cf08e973e958874c3463ca0435e8642ff25a157ed334fcf187b4fd156c2ecbc2
Dec 19 09:49:32.146 INFO running `"docker" "start" "-a" "cf08e973e958874c3463ca0435e8642ff25a157ed334fcf187b4fd156c2ecbc2"`
Dec 19 09:49:33.747 INFO [stderr]    Compiling libc v0.2.44
Dec 19 09:49:35.936 INFO [stderr]     Checking rand v0.6.1
Dec 19 09:49:38.170 INFO [stderr]     Checking sudoku_solving v0.1.0 (/opt/crater/workdir)
Dec 19 09:49:38.265 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.265 INFO [stderr]   --> src/checker/grid_checker.rs:68:11
Dec 19 09:49:38.265 INFO [stderr]    |
Dec 19 09:49:38.266 INFO [stderr] 68 |   #[allow(if_same_then_else)]
Dec 19 09:49:38.266 INFO [stderr]    |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.266 INFO [stderr]    |
Dec 19 09:49:38.266 INFO [stderr]    = note: #[warn(unknown_lints)] on by default
Dec 19 09:49:38.267 INFO [stderr] 
Dec 19 09:49:38.267 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.267 INFO [stderr]    --> src/checker/grid_checker.rs:128:11
Dec 19 09:49:38.267 INFO [stderr]     |
Dec 19 09:49:38.268 INFO [stderr] 128 |   #[allow(if_same_then_else)]
Dec 19 09:49:38.268 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.268 INFO [stderr] 
Dec 19 09:49:38.269 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.269 INFO [stderr]    --> src/checker/grid_checker.rs:177:11
Dec 19 09:49:38.269 INFO [stderr]     |
Dec 19 09:49:38.269 INFO [stderr] 177 |   #[allow(if_same_then_else)]
Dec 19 09:49:38.269 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.270 INFO [stderr] 
Dec 19 09:49:38.270 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.270 INFO [stderr]   --> src/checker/group_checker.rs:42:11
Dec 19 09:49:38.270 INFO [stderr]    |
Dec 19 09:49:38.271 INFO [stderr] 42 |   #[allow(if_same_then_else, needless_bool)]
Dec 19 09:49:38.271 INFO [stderr]    |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.271 INFO [stderr] 
Dec 19 09:49:38.271 INFO [stderr] warning: unknown lint: `needless_bool`
Dec 19 09:49:38.272 INFO [stderr]   --> src/checker/group_checker.rs:42:30
Dec 19 09:49:38.272 INFO [stderr]    |
Dec 19 09:49:38.272 INFO [stderr] 42 |   #[allow(if_same_then_else, needless_bool)]
Dec 19 09:49:38.272 INFO [stderr]    |                              ^^^^^^^^^^^^^
Dec 19 09:49:38.273 INFO [stderr] 
Dec 19 09:49:38.381 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.381 INFO [stderr]   --> src/checker/grid_checker.rs:68:11
Dec 19 09:49:38.381 INFO [stderr]    |
Dec 19 09:49:38.382 INFO [stderr] 68 |   #[allow(if_same_then_else)]
Dec 19 09:49:38.382 INFO [stderr]    |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.382 INFO [stderr]    |
Dec 19 09:49:38.382 INFO [stderr]    = note: #[warn(unknown_lints)] on by default
Dec 19 09:49:38.383 INFO [stderr] 
Dec 19 09:49:38.383 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.383 INFO [stderr]    --> src/checker/grid_checker.rs:128:11
Dec 19 09:49:38.383 INFO [stderr]     |
Dec 19 09:49:38.384 INFO [stderr] 128 |   #[allow(if_same_then_else)]
Dec 19 09:49:38.384 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.384 INFO [stderr] 
Dec 19 09:49:38.384 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.385 INFO [stderr]    --> src/checker/grid_checker.rs:177:11
Dec 19 09:49:38.385 INFO [stderr]     |
Dec 19 09:49:38.385 INFO [stderr] 177 |   #[allow(if_same_then_else)]
Dec 19 09:49:38.385 INFO [stderr]     |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.385 INFO [stderr] 
Dec 19 09:49:38.386 INFO [stderr] warning: unknown lint: `if_same_then_else`
Dec 19 09:49:38.386 INFO [stderr]   --> src/checker/group_checker.rs:42:11
Dec 19 09:49:38.386 INFO [stderr]    |
Dec 19 09:49:38.387 INFO [stderr] 42 |   #[allow(if_same_then_else, needless_bool)]
Dec 19 09:49:38.387 INFO [stderr]    |           ^^^^^^^^^^^^^^^^^
Dec 19 09:49:38.387 INFO [stderr] 
Dec 19 09:49:38.387 INFO [stderr] warning: unknown lint: `needless_bool`
Dec 19 09:49:38.388 INFO [stderr]   --> src/checker/group_checker.rs:42:30
Dec 19 09:49:38.388 INFO [stderr]    |
Dec 19 09:49:38.388 INFO [stderr] 42 |   #[allow(if_same_then_else, needless_bool)]
Dec 19 09:49:38.388 INFO [stderr]    |                              ^^^^^^^^^^^^^
Dec 19 09:49:38.388 INFO [stderr] 
Dec 19 09:49:39.142 INFO [stderr] warning: unused imports: `SudokuChoice`, `SudokuPosition`, `SudokuValue`
Dec 19 09:49:39.142 INFO [stderr]  --> src/main.rs:4:10
Dec 19 09:49:39.142 INFO [stderr]   |
Dec 19 09:49:39.142 INFO [stderr] 4 |   core::{SudokuChoice, SudokuGrid, SudokuPosition, SudokuValue},
Dec 19 09:49:39.143 INFO [stderr]   |          ^^^^^^^^^^^^              ^^^^^^^^^^^^^^  ^^^^^^^^^^^
Dec 19 09:49:39.143 INFO [stderr]   |
Dec 19 09:49:39.143 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:49:39.143 INFO [stderr] 
Dec 19 09:49:39.156 INFO [stderr] warning: unused imports: `SudokuChoice`, `SudokuPosition`, `SudokuValue`
Dec 19 09:49:39.157 INFO [stderr]  --> src/main.rs:4:10
Dec 19 09:49:39.157 INFO [stderr]   |
Dec 19 09:49:39.157 INFO [stderr] 4 |   core::{SudokuChoice, SudokuGrid, SudokuPosition, SudokuValue},
Dec 19 09:49:39.157 INFO [stderr]   |          ^^^^^^^^^^^^              ^^^^^^^^^^^^^^  ^^^^^^^^^^^
Dec 19 09:49:39.158 INFO [stderr]   |
Dec 19 09:49:39.158 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 09:49:39.158 INFO [stderr] 
Dec 19 09:49:39.275 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
Dec 19 09:49:40.706 INFO running `"docker" "inspect" "cf08e973e958874c3463ca0435e8642ff25a157ed334fcf187b4fd156c2ecbc2"`
Dec 19 09:49:41.007 INFO running `"docker" "rm" "-f" "cf08e973e958874c3463ca0435e8642ff25a157ed334fcf187b4fd156c2ecbc2"`
Dec 19 09:49:41.196 INFO [stdout] cf08e973e958874c3463ca0435e8642ff25a157ed334fcf187b4fd156c2ecbc2