Nov 29 20:18:27.443 INFO checking proudzhu/sudoku-norvig against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 20:18:27.443 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 29 20:18:27.868 INFO [stdout] 85f96bdb7f62c3de6c4e8264e979464bab6f9a245e4581a756d0c0282312bfd1
Nov 29 20:18:27.870 INFO running `"docker" "start" "-a" "85f96bdb7f62c3de6c4e8264e979464bab6f9a245e4581a756d0c0282312bfd1"`
Nov 29 20:18:29.799 INFO [stderr] usermod: no changes
Nov 29 20:18:29.837 INFO [stderr]     Checking norvig v0.1.0 (/source)
Nov 29 20:18:30.512 INFO [stderr] warning: struct is never constructed: `Possible`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:10:1
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 10 | struct Possible {
Nov 29 20:18:30.512 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: method is never used: `is_on`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:15:5
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 15 |     fn is_on(&self, i: u8) -> bool {
Nov 29 20:18:30.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: method is never used: `count`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:19:5
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 19 |     fn count(&self) -> u8 {
Nov 29 20:18:30.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: method is never used: `eliminate`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:25:5
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 25 |     fn eliminate(&mut self, i: u8) {
Nov 29 20:18:30.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: method is never used: `val`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:29:5
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 29 |     fn val(&self) -> u8 {
Nov 29 20:18:30.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: struct is never constructed: `Sudoku`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:34:1
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 34 | struct Sudoku {
Nov 29 20:18:30.512 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: method is never used: `assign`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:41:5
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 41 |     fn assign(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Nov 29 20:18:30.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.512 INFO [stderr] warning: method is never used: `eliminate`
Nov 29 20:18:30.512 INFO [stderr]   --> src/main.rs:50:5
Nov 29 20:18:30.512 INFO [stderr]    |
Nov 29 20:18:30.512 INFO [stderr] 50 |     fn eliminate(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Nov 29 20:18:30.512 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.512 INFO [stderr] 
Nov 29 20:18:30.688 INFO [stderr] warning: struct is never constructed: `Possible`
Nov 29 20:18:30.688 INFO [stderr]   --> src/main.rs:10:1
Nov 29 20:18:30.688 INFO [stderr]    |
Nov 29 20:18:30.688 INFO [stderr] 10 | struct Possible {
Nov 29 20:18:30.688 INFO [stderr]    | ^^^^^^^^^^^^^^^
Nov 29 20:18:30.688 INFO [stderr]    |
Nov 29 20:18:30.688 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 20:18:30.688 INFO [stderr] 
Nov 29 20:18:30.688 INFO [stderr] warning: method is never used: `is_on`
Nov 29 20:18:30.688 INFO [stderr]   --> src/main.rs:15:5
Nov 29 20:18:30.688 INFO [stderr]    |
Nov 29 20:18:30.688 INFO [stderr] 15 |     fn is_on(&self, i: u8) -> bool {
Nov 29 20:18:30.688 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.688 INFO [stderr] 
Nov 29 20:18:30.688 INFO [stderr] warning: method is never used: `count`
Nov 29 20:18:30.688 INFO [stderr]   --> src/main.rs:19:5
Nov 29 20:18:30.688 INFO [stderr]    |
Nov 29 20:18:30.688 INFO [stderr] 19 |     fn count(&self) -> u8 {
Nov 29 20:18:30.688 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.688 INFO [stderr] 
Nov 29 20:18:30.688 INFO [stderr] warning: method is never used: `eliminate`
Nov 29 20:18:30.688 INFO [stderr]   --> src/main.rs:25:5
Nov 29 20:18:30.688 INFO [stderr]    |
Nov 29 20:18:30.688 INFO [stderr] 25 |     fn eliminate(&mut self, i: u8) {
Nov 29 20:18:30.688 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.688 INFO [stderr] 
Nov 29 20:18:30.688 INFO [stderr] warning: method is never used: `val`
Nov 29 20:18:30.688 INFO [stderr]   --> src/main.rs:29:5
Nov 29 20:18:30.688 INFO [stderr]    |
Nov 29 20:18:30.688 INFO [stderr] 29 |     fn val(&self) -> u8 {
Nov 29 20:18:30.689 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.689 INFO [stderr] 
Nov 29 20:18:30.689 INFO [stderr] warning: struct is never constructed: `Sudoku`
Nov 29 20:18:30.689 INFO [stderr]   --> src/main.rs:34:1
Nov 29 20:18:30.689 INFO [stderr]    |
Nov 29 20:18:30.689 INFO [stderr] 34 | struct Sudoku {
Nov 29 20:18:30.689 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 29 20:18:30.689 INFO [stderr] 
Nov 29 20:18:30.689 INFO [stderr] warning: method is never used: `assign`
Nov 29 20:18:30.689 INFO [stderr]   --> src/main.rs:41:5
Nov 29 20:18:30.689 INFO [stderr]    |
Nov 29 20:18:30.689 INFO [stderr] 41 |     fn assign(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Nov 29 20:18:30.689 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.689 INFO [stderr] 
Nov 29 20:18:30.689 INFO [stderr] warning: method is never used: `eliminate`
Nov 29 20:18:30.689 INFO [stderr]   --> src/main.rs:50:5
Nov 29 20:18:30.689 INFO [stderr]    |
Nov 29 20:18:30.689 INFO [stderr] 50 |     fn eliminate(&mut self, grid: &[Vec<u8>], row: usize, col: usize, d: u8) -> bool {
Nov 29 20:18:30.689 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 20:18:30.689 INFO [stderr] 
Nov 29 20:18:30.709 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Nov 29 20:18:30.711 INFO [stderr] su: No module specific data is present
Nov 29 20:18:31.584 INFO running `"docker" "inspect" "85f96bdb7f62c3de6c4e8264e979464bab6f9a245e4581a756d0c0282312bfd1"`
Nov 29 20:18:31.970 INFO running `"docker" "rm" "-f" "85f96bdb7f62c3de6c4e8264e979464bab6f9a245e4581a756d0c0282312bfd1"`
Nov 29 20:18:32.304 INFO [stdout] 85f96bdb7f62c3de6c4e8264e979464bab6f9a245e4581a756d0c0282312bfd1