Nov 17 02:22:38.982 INFO testing garyemerson/queens_on_board against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 02:22:38.984 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 02:22:39.539 INFO [stdout] 3de4dc4bde7b8533a2e098fde7fef8d616408fba55bab4c88177463678176970
Nov 17 02:22:39.542 INFO running `"docker" "start" "-a" "3de4dc4bde7b8533a2e098fde7fef8d616408fba55bab4c88177463678176970"`
Nov 17 02:22:41.423 INFO [stderr] usermod: no changes
Nov 17 02:22:41.483 INFO [stderr]    Compiling queens_on_board v0.1.0 (/source)
Nov 17 02:22:42.099 INFO [stderr] warning: unused variable: `test_case_num`
Nov 17 02:22:42.099 INFO [stderr]   --> src/main.rs:10:9
Nov 17 02:22:42.100 INFO [stderr]    |
Nov 17 02:22:42.100 INFO [stderr] 10 |     for test_case_num in 0..num_test_cases {
Nov 17 02:22:42.100 INFO [stderr]    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Nov 17 02:22:42.100 INFO [stderr]    |
Nov 17 02:22:42.101 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 17 02:22:42.101 INFO [stderr] 
Nov 17 02:22:42.101 INFO [stderr] warning: unused variable: `all_placements`
Nov 17 02:22:42.102 INFO [stderr]   --> src/main.rs:47:13
Nov 17 02:22:42.102 INFO [stderr]    |
Nov 17 02:22:42.102 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 17 02:22:42.102 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Nov 17 02:22:42.103 INFO [stderr] 
Nov 17 02:22:42.103 INFO [stderr] warning: unused variable: `rows`
Nov 17 02:22:42.103 INFO [stderr]   --> src/main.rs:87:19
Nov 17 02:22:42.104 INFO [stderr]    |
Nov 17 02:22:42.104 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 17 02:22:42.104 INFO [stderr]    |                   ^^^^ help: consider using `_rows` instead
Nov 17 02:22:42.104 INFO [stderr] 
Nov 17 02:22:42.105 INFO [stderr] warning: variable does not need to be mutable
Nov 17 02:22:42.105 INFO [stderr]   --> src/main.rs:47:9
Nov 17 02:22:42.105 INFO [stderr]    |
Nov 17 02:22:42.106 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 17 02:22:42.106 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Nov 17 02:22:42.106 INFO [stderr]    |         |
Nov 17 02:22:42.106 INFO [stderr]    |         help: remove this `mut`
Nov 17 02:22:42.107 INFO [stderr]    |
Nov 17 02:22:42.107 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 02:22:42.107 INFO [stderr] 
Nov 17 02:22:42.139 INFO [stderr] warning: function is never used: `solve`
Nov 17 02:22:42.140 INFO [stderr]   --> src/main.rs:46:1
Nov 17 02:22:42.140 INFO [stderr]    |
Nov 17 02:22:42.140 INFO [stderr] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Nov 17 02:22:42.140 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.141 INFO [stderr]    |
Nov 17 02:22:42.141 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 02:22:42.141 INFO [stderr] 
Nov 17 02:22:42.141 INFO [stderr] warning: function is never used: `print_in_order`
Nov 17 02:22:42.142 INFO [stderr]   --> src/main.rs:87:1
Nov 17 02:22:42.142 INFO [stderr]    |
Nov 17 02:22:42.142 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 17 02:22:42.143 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.143 INFO [stderr] 
Nov 17 02:22:42.143 INFO [stderr] warning: function is never used: `get_placements_from_basis`
Nov 17 02:22:42.143 INFO [stderr]    --> src/main.rs:97:1
Nov 17 02:22:42.144 INFO [stderr]     |
Nov 17 02:22:42.144 INFO [stderr] 97  | / fn get_placements_from_basis(
Nov 17 02:22:42.144 INFO [stderr] 98  | |     rows: i32,
Nov 17 02:22:42.145 INFO [stderr] 99  | |     cols: i32,
Nov 17 02:22:42.145 INFO [stderr] 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Nov 17 02:22:42.145 INFO [stderr] ...   |
Nov 17 02:22:42.145 INFO [stderr] 119 | |     placements
Nov 17 02:22:42.146 INFO [stderr] 120 | | }
Nov 17 02:22:42.146 INFO [stderr]     | |_^
Nov 17 02:22:42.146 INFO [stderr] 
Nov 17 02:22:42.146 INFO [stderr] warning: function is never used: `print_placement`
Nov 17 02:22:42.147 INFO [stderr]    --> src/main.rs:135:1
Nov 17 02:22:42.147 INFO [stderr]     |
Nov 17 02:22:42.147 INFO [stderr] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Nov 17 02:22:42.147 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.148 INFO [stderr] 
Nov 17 02:22:42.148 INFO [stderr] warning: function is never used: `solve_brute_force`
Nov 17 02:22:42.148 INFO [stderr]    --> src/main.rs:150:1
Nov 17 02:22:42.148 INFO [stderr]     |
Nov 17 02:22:42.149 INFO [stderr] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Nov 17 02:22:42.149 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.149 INFO [stderr] 
Nov 17 02:22:42.149 INFO [stderr] warning: function is never used: `is_valid_placement`
Nov 17 02:22:42.150 INFO [stderr]    --> src/main.rs:160:1
Nov 17 02:22:42.150 INFO [stderr]     |
Nov 17 02:22:42.150 INFO [stderr] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 17 02:22:42.150 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.151 INFO [stderr] 
Nov 17 02:22:42.151 INFO [stderr] warning: function is never used: `is_valid_path`
Nov 17 02:22:42.151 INFO [stderr]    --> src/main.rs:331:1
Nov 17 02:22:42.151 INFO [stderr]     |
Nov 17 02:22:42.152 INFO [stderr] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 17 02:22:42.152 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.152 INFO [stderr] 
Nov 17 02:22:42.153 INFO [stderr] warning: function is never used: `enumerate_placements`
Nov 17 02:22:42.153 INFO [stderr]    --> src/main.rs:342:1
Nov 17 02:22:42.153 INFO [stderr]     |
Nov 17 02:22:42.153 INFO [stderr] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Nov 17 02:22:42.154 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.154 INFO [stderr] 
Nov 17 02:22:42.154 INFO [stderr] warning: function is never used: `num_to_coord`
Nov 17 02:22:42.154 INFO [stderr]    --> src/main.rs:359:1
Nov 17 02:22:42.155 INFO [stderr]     |
Nov 17 02:22:42.155 INFO [stderr] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Nov 17 02:22:42.155 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.156 INFO [stderr] 
Nov 17 02:22:42.156 INFO [stderr] warning: function is never used: `get_choose_set`
Nov 17 02:22:42.156 INFO [stderr]    --> src/main.rs:363:1
Nov 17 02:22:42.156 INFO [stderr]     |
Nov 17 02:22:42.157 INFO [stderr] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Nov 17 02:22:42.157 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:42.157 INFO [stderr] 
Nov 17 02:22:43.334 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
Nov 17 02:22:43.336 INFO [stderr] su: No module specific data is present
Nov 17 02:22:44.458 INFO running `"docker" "inspect" "3de4dc4bde7b8533a2e098fde7fef8d616408fba55bab4c88177463678176970"`
Nov 17 02:22:44.873 INFO running `"docker" "rm" "-f" "3de4dc4bde7b8533a2e098fde7fef8d616408fba55bab4c88177463678176970"`
Nov 17 02:22:45.211 INFO [stdout] 3de4dc4bde7b8533a2e098fde7fef8d616408fba55bab4c88177463678176970
Nov 17 02:22:45.213 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 02:22:45.852 INFO [stdout] fe4d432b1e7dc9c12f2efa346360a0bb4b74eaa8fc193882ab29b5f8c14667e1
Nov 17 02:22:45.855 INFO running `"docker" "start" "-a" "fe4d432b1e7dc9c12f2efa346360a0bb4b74eaa8fc193882ab29b5f8c14667e1"`
Nov 17 02:22:47.059 INFO [stderr] usermod: no changes
Nov 17 02:22:47.115 INFO [stderr]    Compiling queens_on_board v0.1.0 (/source)
Nov 17 02:22:47.547 INFO [stderr] warning: unused variable: `test_case_num`
Nov 17 02:22:47.547 INFO [stderr]   --> src/main.rs:10:9
Nov 17 02:22:47.547 INFO [stderr]    |
Nov 17 02:22:47.547 INFO [stderr] 10 |     for test_case_num in 0..num_test_cases {
Nov 17 02:22:47.547 INFO [stderr]    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Nov 17 02:22:47.547 INFO [stderr]    |
Nov 17 02:22:47.547 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 17 02:22:47.547 INFO [stderr] 
Nov 17 02:22:47.547 INFO [stderr] warning: unused variable: `all_placements`
Nov 17 02:22:47.547 INFO [stderr]   --> src/main.rs:47:13
Nov 17 02:22:47.547 INFO [stderr]    |
Nov 17 02:22:47.547 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 17 02:22:47.547 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Nov 17 02:22:47.547 INFO [stderr] 
Nov 17 02:22:47.547 INFO [stderr] warning: unused variable: `rows`
Nov 17 02:22:47.547 INFO [stderr]   --> src/main.rs:87:19
Nov 17 02:22:47.547 INFO [stderr]    |
Nov 17 02:22:47.547 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 17 02:22:47.547 INFO [stderr]    |                   ^^^^ help: consider using `_rows` instead
Nov 17 02:22:47.547 INFO [stderr] 
Nov 17 02:22:47.551 INFO [stderr] warning: variable does not need to be mutable
Nov 17 02:22:47.551 INFO [stderr]   --> src/main.rs:47:9
Nov 17 02:22:47.551 INFO [stderr]    |
Nov 17 02:22:47.551 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 17 02:22:47.551 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Nov 17 02:22:47.551 INFO [stderr]    |         |
Nov 17 02:22:47.551 INFO [stderr]    |         help: remove this `mut`
Nov 17 02:22:47.551 INFO [stderr]    |
Nov 17 02:22:47.551 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 02:22:47.551 INFO [stderr] 
Nov 17 02:22:47.595 INFO [stderr] warning: function is never used: `solve`
Nov 17 02:22:47.595 INFO [stderr]   --> src/main.rs:46:1
Nov 17 02:22:47.595 INFO [stderr]    |
Nov 17 02:22:47.595 INFO [stderr] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Nov 17 02:22:47.595 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.595 INFO [stderr]    |
Nov 17 02:22:47.595 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 02:22:47.595 INFO [stderr] 
Nov 17 02:22:47.595 INFO [stderr] warning: function is never used: `print_in_order`
Nov 17 02:22:47.595 INFO [stderr]   --> src/main.rs:87:1
Nov 17 02:22:47.595 INFO [stderr]    |
Nov 17 02:22:47.595 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 17 02:22:47.595 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.595 INFO [stderr] 
Nov 17 02:22:47.595 INFO [stderr] warning: function is never used: `get_placements_from_basis`
Nov 17 02:22:47.595 INFO [stderr]    --> src/main.rs:97:1
Nov 17 02:22:47.595 INFO [stderr]     |
Nov 17 02:22:47.595 INFO [stderr] 97  | / fn get_placements_from_basis(
Nov 17 02:22:47.595 INFO [stderr] 98  | |     rows: i32,
Nov 17 02:22:47.595 INFO [stderr] 99  | |     cols: i32,
Nov 17 02:22:47.595 INFO [stderr] 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Nov 17 02:22:47.595 INFO [stderr] ...   |
Nov 17 02:22:47.595 INFO [stderr] 119 | |     placements
Nov 17 02:22:47.595 INFO [stderr] 120 | | }
Nov 17 02:22:47.595 INFO [stderr]     | |_^
Nov 17 02:22:47.595 INFO [stderr] 
Nov 17 02:22:47.595 INFO [stderr] warning: function is never used: `print_placement`
Nov 17 02:22:47.595 INFO [stderr]    --> src/main.rs:135:1
Nov 17 02:22:47.595 INFO [stderr]     |
Nov 17 02:22:47.595 INFO [stderr] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Nov 17 02:22:47.595 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.595 INFO [stderr] 
Nov 17 02:22:47.595 INFO [stderr] warning: function is never used: `solve_brute_force`
Nov 17 02:22:47.595 INFO [stderr]    --> src/main.rs:150:1
Nov 17 02:22:47.595 INFO [stderr]     |
Nov 17 02:22:47.595 INFO [stderr] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Nov 17 02:22:47.595 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.595 INFO [stderr] 
Nov 17 02:22:47.595 INFO [stderr] warning: function is never used: `is_valid_placement`
Nov 17 02:22:47.595 INFO [stderr]    --> src/main.rs:160:1
Nov 17 02:22:47.596 INFO [stderr]     |
Nov 17 02:22:47.596 INFO [stderr] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 17 02:22:47.596 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.596 INFO [stderr] 
Nov 17 02:22:47.596 INFO [stderr] warning: function is never used: `is_valid_path`
Nov 17 02:22:47.596 INFO [stderr]    --> src/main.rs:331:1
Nov 17 02:22:47.596 INFO [stderr]     |
Nov 17 02:22:47.596 INFO [stderr] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 17 02:22:47.596 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.596 INFO [stderr] 
Nov 17 02:22:47.596 INFO [stderr] warning: function is never used: `enumerate_placements`
Nov 17 02:22:47.596 INFO [stderr]    --> src/main.rs:342:1
Nov 17 02:22:47.596 INFO [stderr]     |
Nov 17 02:22:47.596 INFO [stderr] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Nov 17 02:22:47.596 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.596 INFO [stderr] 
Nov 17 02:22:47.596 INFO [stderr] warning: function is never used: `num_to_coord`
Nov 17 02:22:47.596 INFO [stderr]    --> src/main.rs:359:1
Nov 17 02:22:47.596 INFO [stderr]     |
Nov 17 02:22:47.596 INFO [stderr] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Nov 17 02:22:47.596 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.596 INFO [stderr] 
Nov 17 02:22:47.596 INFO [stderr] warning: function is never used: `get_choose_set`
Nov 17 02:22:47.596 INFO [stderr]    --> src/main.rs:363:1
Nov 17 02:22:47.596 INFO [stderr]     |
Nov 17 02:22:47.596 INFO [stderr] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Nov 17 02:22:47.596 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 02:22:47.596 INFO [stderr] 
Nov 17 02:22:47.951 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Nov 17 02:22:47.953 INFO [stderr] su: No module specific data is present
Nov 17 02:22:48.481 INFO running `"docker" "inspect" "fe4d432b1e7dc9c12f2efa346360a0bb4b74eaa8fc193882ab29b5f8c14667e1"`
Nov 17 02:22:48.751 INFO running `"docker" "rm" "-f" "fe4d432b1e7dc9c12f2efa346360a0bb4b74eaa8fc193882ab29b5f8c14667e1"`
Nov 17 02:22:49.000 INFO [stdout] fe4d432b1e7dc9c12f2efa346360a0bb4b74eaa8fc193882ab29b5f8c14667e1
Nov 17 02:22:49.007 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 02:22:49.471 INFO [stdout] 1e5424ac1b74f66aaf0f59f3af6ebcf618595e246a855302b3565c8d66225368
Nov 17 02:22:49.474 INFO running `"docker" "start" "-a" "1e5424ac1b74f66aaf0f59f3af6ebcf618595e246a855302b3565c8d66225368"`
Nov 17 02:22:50.547 INFO [stderr] usermod: no changes
Nov 17 02:22:50.591 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 17 02:22:50.591 INFO [stderr]      Running /target/debug/deps/queens_on_board-8d2b8e3d04af08bb
Nov 17 02:22:50.612 INFO [stdout] 
Nov 17 02:22:50.612 INFO [stdout] running 0 tests
Nov 17 02:22:50.612 INFO [stdout] 
Nov 17 02:22:50.612 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 02:22:50.612 INFO [stdout] 
Nov 17 02:22:50.627 INFO [stderr] su: No module specific data is present
Nov 17 02:22:51.345 INFO running `"docker" "inspect" "1e5424ac1b74f66aaf0f59f3af6ebcf618595e246a855302b3565c8d66225368"`
Nov 17 02:22:51.657 INFO running `"docker" "rm" "-f" "1e5424ac1b74f66aaf0f59f3af6ebcf618595e246a855302b3565c8d66225368"`
Nov 17 02:22:52.038 INFO [stdout] 1e5424ac1b74f66aaf0f59f3af6ebcf618595e246a855302b3565c8d66225368