Dec 05 10:58:30.628 INFO testing proudzhu/sudoku-norvig against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 10:58:30.628 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 10:58:31.063 INFO [stdout] 207841a56650e5d05b92362c9f8169d564cfcb9b1609e00643da90789da7d4b3
Dec 05 10:58:31.067 INFO running `"docker" "start" "-a" "207841a56650e5d05b92362c9f8169d564cfcb9b1609e00643da90789da7d4b3"`
Dec 05 10:58:31.644 INFO [stderr] usermod: no changes
Dec 05 10:58:31.680 INFO [stderr]    Compiling norvig v0.1.0 (/source)
Dec 05 10:58:31.952 INFO [stderr] warning: struct is never constructed: `Possible`
Dec 05 10:58:31.952 INFO [stderr]   --> src/main.rs:10:1
Dec 05 10:58:31.952 INFO [stderr]    |
Dec 05 10:58:31.952 INFO [stderr] 10 | struct Possible {
Dec 05 10:58:31.952 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 05 10:58:31.952 INFO [stderr]    |
Dec 05 10:58:31.952 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 10:58:31.952 INFO [stderr] 
Dec 05 10:58:31.952 INFO [stderr] warning: method is never used: `is_on`
Dec 05 10:58:31.952 INFO [stderr]   --> src/main.rs:15:5
Dec 05 10:58:31.952 INFO [stderr]    |
Dec 05 10:58:31.952 INFO [stderr] 15 |     fn is_on(&self, i: u8) -> bool {
Dec 05 10:58:31.952 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:31.952 INFO [stderr] 
Dec 05 10:58:31.952 INFO [stderr] warning: method is never used: `count`
Dec 05 10:58:31.952 INFO [stderr]   --> src/main.rs:19:5
Dec 05 10:58:31.953 INFO [stderr]    |
Dec 05 10:58:31.953 INFO [stderr] 19 |     fn count(&self) -> u8 {
Dec 05 10:58:31.953 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:31.953 INFO [stderr] 
Dec 05 10:58:31.953 INFO [stderr] warning: method is never used: `eliminate`
Dec 05 10:58:31.953 INFO [stderr]   --> src/main.rs:25:5
Dec 05 10:58:31.953 INFO [stderr]    |
Dec 05 10:58:31.953 INFO [stderr] 25 |     fn eliminate(&mut self, i: u8) {
Dec 05 10:58:31.953 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:31.953 INFO [stderr] 
Dec 05 10:58:31.953 INFO [stderr] warning: method is never used: `val`
Dec 05 10:58:31.953 INFO [stderr]   --> src/main.rs:29:5
Dec 05 10:58:31.953 INFO [stderr]    |
Dec 05 10:58:31.953 INFO [stderr] 29 |     fn val(&self) -> u8 {
Dec 05 10:58:31.953 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:31.953 INFO [stderr] 
Dec 05 10:58:31.953 INFO [stderr] warning: struct is never constructed: `Sudoku`
Dec 05 10:58:31.953 INFO [stderr]   --> src/main.rs:34:1
Dec 05 10:58:31.953 INFO [stderr]    |
Dec 05 10:58:31.953 INFO [stderr] 34 | struct Sudoku {
Dec 05 10:58:31.953 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 05 10:58:31.953 INFO [stderr] 
Dec 05 10:58:31.953 INFO [stderr] warning: method is never used: `assign`
Dec 05 10:58:31.953 INFO [stderr]   --> src/main.rs:41:5
Dec 05 10:58:31.953 INFO [stderr]    |
Dec 05 10:58:31.953 INFO [stderr] 41 |     fn assign(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Dec 05 10:58:31.953 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:31.953 INFO [stderr] 
Dec 05 10:58:31.953 INFO [stderr] warning: method is never used: `eliminate`
Dec 05 10:58:31.953 INFO [stderr]   --> src/main.rs:50:5
Dec 05 10:58:31.953 INFO [stderr]    |
Dec 05 10:58:31.953 INFO [stderr] 50 |     fn eliminate(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Dec 05 10:58:31.953 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:31.953 INFO [stderr] 
Dec 05 10:58:32.496 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 05 10:58:32.496 INFO [stderr] su: No module specific data is present
Dec 05 10:58:33.390 INFO running `"docker" "inspect" "207841a56650e5d05b92362c9f8169d564cfcb9b1609e00643da90789da7d4b3"`
Dec 05 10:58:33.632 INFO running `"docker" "rm" "-f" "207841a56650e5d05b92362c9f8169d564cfcb9b1609e00643da90789da7d4b3"`
Dec 05 10:58:33.946 INFO [stdout] 207841a56650e5d05b92362c9f8169d564cfcb9b1609e00643da90789da7d4b3
Dec 05 10:58:33.950 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 10:58:34.540 INFO [stdout] 61bb034378896bd6f84cf729b8abb6c0a5f63136cc0735ed699913435176cd02
Dec 05 10:58:34.546 INFO running `"docker" "start" "-a" "61bb034378896bd6f84cf729b8abb6c0a5f63136cc0735ed699913435176cd02"`
Dec 05 10:58:35.614 INFO [stderr] usermod: no changes
Dec 05 10:58:35.666 INFO [stderr]    Compiling norvig v0.1.0 (/source)
Dec 05 10:58:36.019 INFO [stderr] warning: struct is never constructed: `Possible`
Dec 05 10:58:36.019 INFO [stderr]   --> src/main.rs:10:1
Dec 05 10:58:36.019 INFO [stderr]    |
Dec 05 10:58:36.019 INFO [stderr] 10 | struct Possible {
Dec 05 10:58:36.019 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 05 10:58:36.019 INFO [stderr]    |
Dec 05 10:58:36.019 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 10:58:36.019 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: method is never used: `is_on`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:15:5
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 15 |     fn is_on(&self, i: u8) -> bool {
Dec 05 10:58:36.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: method is never used: `count`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:19:5
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 19 |     fn count(&self) -> u8 {
Dec 05 10:58:36.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: method is never used: `eliminate`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:25:5
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 25 |     fn eliminate(&mut self, i: u8) {
Dec 05 10:58:36.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: method is never used: `val`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:29:5
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 29 |     fn val(&self) -> u8 {
Dec 05 10:58:36.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: struct is never constructed: `Sudoku`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:34:1
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 34 | struct Sudoku {
Dec 05 10:58:36.020 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: method is never used: `assign`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:41:5
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 41 |     fn assign(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Dec 05 10:58:36.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.020 INFO [stderr] warning: method is never used: `eliminate`
Dec 05 10:58:36.020 INFO [stderr]   --> src/main.rs:50:5
Dec 05 10:58:36.020 INFO [stderr]    |
Dec 05 10:58:36.020 INFO [stderr] 50 |     fn eliminate(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Dec 05 10:58:36.020 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 10:58:36.020 INFO [stderr] 
Dec 05 10:58:36.327 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 05 10:58:36.330 INFO [stderr] su: No module specific data is present
Dec 05 10:58:37.457 INFO running `"docker" "inspect" "61bb034378896bd6f84cf729b8abb6c0a5f63136cc0735ed699913435176cd02"`
Dec 05 10:58:37.782 INFO running `"docker" "rm" "-f" "61bb034378896bd6f84cf729b8abb6c0a5f63136cc0735ed699913435176cd02"`
Dec 05 10:58:38.052 INFO [stdout] 61bb034378896bd6f84cf729b8abb6c0a5f63136cc0735ed699913435176cd02
Dec 05 10:58:38.052 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 05 10:58:38.660 INFO [stdout] 0d89a3df748a11f555b69afafa6bb96c72b40d02a059a3b08d3e7c99ee544b27
Dec 05 10:58:38.662 INFO running `"docker" "start" "-a" "0d89a3df748a11f555b69afafa6bb96c72b40d02a059a3b08d3e7c99ee544b27"`
Dec 05 10:58:39.570 INFO [stderr] usermod: no changes
Dec 05 10:58:39.617 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 05 10:58:39.628 INFO [stderr]      Running /target/debug/deps/norvig-c4efb2fcb86f7a7a
Dec 05 10:58:39.640 INFO [stdout] 
Dec 05 10:58:39.640 INFO [stdout] running 0 tests
Dec 05 10:58:39.640 INFO [stdout] 
Dec 05 10:58:39.640 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 10:58:39.640 INFO [stdout] 
Dec 05 10:58:39.647 INFO [stderr] su: No module specific data is present
Dec 05 10:58:40.206 INFO running `"docker" "inspect" "0d89a3df748a11f555b69afafa6bb96c72b40d02a059a3b08d3e7c99ee544b27"`
Dec 05 10:58:40.406 INFO running `"docker" "rm" "-f" "0d89a3df748a11f555b69afafa6bb96c72b40d02a059a3b08d3e7c99ee544b27"`
Dec 05 10:58:40.556 INFO [stdout] 0d89a3df748a11f555b69afafa6bb96c72b40d02a059a3b08d3e7c99ee544b27