Dec 02 07:54:05.044 INFO testing EthanTheMaster/sudoku_solver against 1.30.1 for beta-1.31-5
Dec 02 07:54:05.044 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 07:54:05.530 INFO [stdout] a8abafb0a32d605aa5c92b317bbedb735be5462789c7820fc932845bfb13a2e8
Dec 02 07:54:05.537 INFO running `"docker" "start" "-a" "a8abafb0a32d605aa5c92b317bbedb735be5462789c7820fc932845bfb13a2e8"`
Dec 02 07:54:06.667 INFO [stderr] usermod: no changes
Dec 02 07:54:06.730 INFO [stderr]    Compiling sudoku_solver v0.1.0 (/source)
Dec 02 07:54:07.519 INFO [stderr] warning: unused variable: `operation`
Dec 02 07:54:07.519 INFO [stderr]   --> src/sudoku_solver_dancinglinks/mod.rs:96:32
Dec 02 07:54:07.519 INFO [stderr]    |
Dec 02 07:54:07.519 INFO [stderr] 96 |         if let NodeType::Field(operation, column_header_id) = node_type {
Dec 02 07:54:07.519 INFO [stderr]    |                                ^^^^^^^^^ help: consider using `_operation` instead
Dec 02 07:54:07.519 INFO [stderr]    |
Dec 02 07:54:07.519 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 02 07:54:07.519 INFO [stderr] 
Dec 02 07:54:07.519 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:07.519 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:100:48
Dec 02 07:54:07.519 INFO [stderr]     |
Dec 02 07:54:07.519 INFO [stderr] 100 |                 NodeType::ColumnHeader(ref mut constraint, ref mut size) => {
Dec 02 07:54:07.519 INFO [stderr]     |                                                ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:07.519 INFO [stderr] 
Dec 02 07:54:07.538 INFO [stderr] warning: unused variable: `operation`
Dec 02 07:54:07.538 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:119:29
Dec 02 07:54:07.538 INFO [stderr]     |
Dec 02 07:54:07.538 INFO [stderr] 119 |             NodeType::Field(operation, column_header_id) => {
Dec 02 07:54:07.538 INFO [stderr]     |                             ^^^^^^^^^ help: consider using `_operation` instead
Dec 02 07:54:07.538 INFO [stderr] 
Dec 02 07:54:07.538 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:07.538 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:127:36
Dec 02 07:54:07.538 INFO [stderr]     |
Dec 02 07:54:07.538 INFO [stderr] 127 |             NodeType::ColumnHeader(constraint, size) => {
Dec 02 07:54:07.538 INFO [stderr]     |                                    ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:07.538 INFO [stderr] 
Dec 02 07:54:07.538 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:07.538 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:226:44
Dec 02 07:54:07.538 INFO [stderr]     |
Dec 02 07:54:07.538 INFO [stderr] 226 |                     NodeType::ColumnHeader(constraint, ref mut size) => {
Dec 02 07:54:07.538 INFO [stderr]     |                                            ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:07.538 INFO [stderr] 
Dec 02 07:54:07.538 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:07.538 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:269:44
Dec 02 07:54:07.538 INFO [stderr]     |
Dec 02 07:54:07.538 INFO [stderr] 269 |                     NodeType::ColumnHeader(constraint, ref mut size) => {
Dec 02 07:54:07.538 INFO [stderr]     |                                            ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:07.538 INFO [stderr] 
Dec 02 07:54:07.538 INFO [stderr] warning: unused variable: `idx`
Dec 02 07:54:07.538 INFO [stderr]   --> src/sudoku_solver_backtrack/mod.rs:35:24
Dec 02 07:54:07.538 INFO [stderr]    |
Dec 02 07:54:07.538 INFO [stderr] 35 |             .filter(|&(idx, val)| {
Dec 02 07:54:07.538 INFO [stderr]    |                        ^^^ help: consider using `_idx` instead
Dec 02 07:54:07.538 INFO [stderr] 
Dec 02 07:54:07.538 INFO [stderr] warning: unused variable: `val`
Dec 02 07:54:07.538 INFO [stderr]   --> src/sudoku_solver_backtrack/mod.rs:37:27
Dec 02 07:54:07.538 INFO [stderr]    |
Dec 02 07:54:07.538 INFO [stderr] 37 |             }).map(|(idx, val)| {
Dec 02 07:54:07.538 INFO [stderr]    |                           ^^^ help: consider using `_val` instead
Dec 02 07:54:07.538 INFO [stderr] 
Dec 02 07:54:07.579 INFO [stderr] warning: variable does not need to be mutable
Dec 02 07:54:07.579 INFO [stderr]   --> src/sudoku_solver_backtrack/mod.rs:34:13
Dec 02 07:54:07.579 INFO [stderr]    |
Dec 02 07:54:07.579 INFO [stderr] 34 |         let mut blank_positions: Vec<usize> = self.board.iter().enumerate()
Dec 02 07:54:07.579 INFO [stderr]    |             ----^^^^^^^^^^^^^^^
Dec 02 07:54:07.579 INFO [stderr]    |             |
Dec 02 07:54:07.579 INFO [stderr]    |             help: remove this `mut`
Dec 02 07:54:07.579 INFO [stderr]    |
Dec 02 07:54:07.579 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 07:54:07.579 INFO [stderr] 
Dec 02 07:54:08.814 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
Dec 02 07:54:08.815 INFO [stderr] su: No module specific data is present
Dec 02 07:54:09.461 INFO running `"docker" "inspect" "a8abafb0a32d605aa5c92b317bbedb735be5462789c7820fc932845bfb13a2e8"`
Dec 02 07:54:09.725 INFO running `"docker" "rm" "-f" "a8abafb0a32d605aa5c92b317bbedb735be5462789c7820fc932845bfb13a2e8"`
Dec 02 07:54:10.018 INFO [stdout] a8abafb0a32d605aa5c92b317bbedb735be5462789c7820fc932845bfb13a2e8
Dec 02 07:54:10.027 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 07:54:10.647 INFO [stdout] 8dc9b87e8be78e46c7bb856f8c105b986fd5ec67aaad6511ee2c98c41413c866
Dec 02 07:54:10.655 INFO running `"docker" "start" "-a" "8dc9b87e8be78e46c7bb856f8c105b986fd5ec67aaad6511ee2c98c41413c866"`
Dec 02 07:54:11.864 INFO [stderr] usermod: no changes
Dec 02 07:54:11.935 INFO [stderr]    Compiling sudoku_solver v0.1.0 (/source)
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `operation`
Dec 02 07:54:12.951 INFO [stderr]   --> src/sudoku_solver_dancinglinks/mod.rs:96:32
Dec 02 07:54:12.951 INFO [stderr]    |
Dec 02 07:54:12.951 INFO [stderr] 96 |         if let NodeType::Field(operation, column_header_id) = node_type {
Dec 02 07:54:12.951 INFO [stderr]    |                                ^^^^^^^^^ help: consider using `_operation` instead
Dec 02 07:54:12.951 INFO [stderr]    |
Dec 02 07:54:12.951 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 02 07:54:12.951 INFO [stderr] 
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:12.951 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:100:48
Dec 02 07:54:12.951 INFO [stderr]     |
Dec 02 07:54:12.951 INFO [stderr] 100 |                 NodeType::ColumnHeader(ref mut constraint, ref mut size) => {
Dec 02 07:54:12.951 INFO [stderr]     |                                                ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:12.951 INFO [stderr] 
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `operation`
Dec 02 07:54:12.951 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:119:29
Dec 02 07:54:12.951 INFO [stderr]     |
Dec 02 07:54:12.951 INFO [stderr] 119 |             NodeType::Field(operation, column_header_id) => {
Dec 02 07:54:12.951 INFO [stderr]     |                             ^^^^^^^^^ help: consider using `_operation` instead
Dec 02 07:54:12.951 INFO [stderr] 
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:12.951 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:127:36
Dec 02 07:54:12.951 INFO [stderr]     |
Dec 02 07:54:12.951 INFO [stderr] 127 |             NodeType::ColumnHeader(constraint, size) => {
Dec 02 07:54:12.951 INFO [stderr]     |                                    ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:12.951 INFO [stderr] 
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:12.951 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:226:44
Dec 02 07:54:12.951 INFO [stderr]     |
Dec 02 07:54:12.951 INFO [stderr] 226 |                     NodeType::ColumnHeader(constraint, ref mut size) => {
Dec 02 07:54:12.951 INFO [stderr]     |                                            ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:12.951 INFO [stderr] 
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `constraint`
Dec 02 07:54:12.951 INFO [stderr]    --> src/sudoku_solver_dancinglinks/mod.rs:269:44
Dec 02 07:54:12.951 INFO [stderr]     |
Dec 02 07:54:12.951 INFO [stderr] 269 |                     NodeType::ColumnHeader(constraint, ref mut size) => {
Dec 02 07:54:12.951 INFO [stderr]     |                                            ^^^^^^^^^^ help: consider using `_constraint` instead
Dec 02 07:54:12.951 INFO [stderr] 
Dec 02 07:54:12.951 INFO [stderr] warning: unused variable: `idx`
Dec 02 07:54:12.951 INFO [stderr]   --> src/sudoku_solver_backtrack/mod.rs:35:24
Dec 02 07:54:12.951 INFO [stderr]    |
Dec 02 07:54:12.951 INFO [stderr] 35 |             .filter(|&(idx, val)| {
Dec 02 07:54:12.951 INFO [stderr]    |                        ^^^ help: consider using `_idx` instead
Dec 02 07:54:12.952 INFO [stderr] 
Dec 02 07:54:12.952 INFO [stderr] warning: unused variable: `val`
Dec 02 07:54:12.952 INFO [stderr]   --> src/sudoku_solver_backtrack/mod.rs:37:27
Dec 02 07:54:12.952 INFO [stderr]    |
Dec 02 07:54:12.952 INFO [stderr] 37 |             }).map(|(idx, val)| {
Dec 02 07:54:12.952 INFO [stderr]    |                           ^^^ help: consider using `_val` instead
Dec 02 07:54:12.952 INFO [stderr] 
Dec 02 07:54:13.007 INFO [stderr] warning: variable does not need to be mutable
Dec 02 07:54:13.007 INFO [stderr]   --> src/sudoku_solver_backtrack/mod.rs:34:13
Dec 02 07:54:13.007 INFO [stderr]    |
Dec 02 07:54:13.007 INFO [stderr] 34 |         let mut blank_positions: Vec<usize> = self.board.iter().enumerate()
Dec 02 07:54:13.007 INFO [stderr]    |             ----^^^^^^^^^^^^^^^
Dec 02 07:54:13.007 INFO [stderr]    |             |
Dec 02 07:54:13.007 INFO [stderr]    |             help: remove this `mut`
Dec 02 07:54:13.008 INFO [stderr]    |
Dec 02 07:54:13.008 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 07:54:13.008 INFO [stderr] 
Dec 02 07:54:13.539 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Dec 02 07:54:13.543 INFO [stderr] su: No module specific data is present
Dec 02 07:54:14.603 INFO running `"docker" "inspect" "8dc9b87e8be78e46c7bb856f8c105b986fd5ec67aaad6511ee2c98c41413c866"`
Dec 02 07:54:14.991 INFO running `"docker" "rm" "-f" "8dc9b87e8be78e46c7bb856f8c105b986fd5ec67aaad6511ee2c98c41413c866"`
Dec 02 07:54:15.235 INFO [stdout] 8dc9b87e8be78e46c7bb856f8c105b986fd5ec67aaad6511ee2c98c41413c866
Dec 02 07:54:15.241 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 07:54:15.680 INFO [stdout] d38261459a0c139b302ad575685a780c41cce2be010d52e3e869f71ba3636a4a
Dec 02 07:54:15.682 INFO running `"docker" "start" "-a" "d38261459a0c139b302ad575685a780c41cce2be010d52e3e869f71ba3636a4a"`
Dec 02 07:54:17.951 INFO [stderr] usermod: no changes
Dec 02 07:54:17.995 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 02 07:54:17.998 INFO [stderr]      Running /target/debug/deps/sudoku_solver-4ee68a25ce4db6ad
Dec 02 07:54:17.998 INFO [stdout] 
Dec 02 07:54:17.998 INFO [stdout] running 0 tests
Dec 02 07:54:17.998 INFO [stdout] 
Dec 02 07:54:17.998 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 07:54:17.998 INFO [stdout] 
Dec 02 07:54:17.999 INFO [stderr] su: No module specific data is present
Dec 02 07:54:19.360 INFO running `"docker" "inspect" "d38261459a0c139b302ad575685a780c41cce2be010d52e3e869f71ba3636a4a"`
Dec 02 07:54:19.731 INFO running `"docker" "rm" "-f" "d38261459a0c139b302ad575685a780c41cce2be010d52e3e869f71ba3636a4a"`
Dec 02 07:54:20.029 INFO [stdout] d38261459a0c139b302ad575685a780c41cce2be010d52e3e869f71ba3636a4a
