Dec 05 23:00:27.477 INFO testing garyemerson/queens_on_board against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 23:00:27.478 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 23:00:27.978 INFO [stdout] 55757978cf67173daf689d2a7a288cc8f4b3ee1878a06e38ef5f61f384df3b5b
Dec 05 23:00:27.980 INFO running `"docker" "start" "-a" "55757978cf67173daf689d2a7a288cc8f4b3ee1878a06e38ef5f61f384df3b5b"`
Dec 05 23:00:29.468 INFO [stderr] usermod: no changes
Dec 05 23:00:29.539 INFO [stderr]    Compiling queens_on_board v0.1.0 (/source)
Dec 05 23:00:30.008 INFO [stderr] warning: unused variable: `test_case_num`
Dec 05 23:00:30.008 INFO [stderr]   --> src/main.rs:10:9
Dec 05 23:00:30.008 INFO [stderr]    |
Dec 05 23:00:30.008 INFO [stderr] 10 |     for test_case_num in 0..num_test_cases {
Dec 05 23:00:30.008 INFO [stderr]    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Dec 05 23:00:30.008 INFO [stderr]    |
Dec 05 23:00:30.008 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 23:00:30.008 INFO [stderr] 
Dec 05 23:00:30.008 INFO [stderr] warning: unused variable: `all_placements`
Dec 05 23:00:30.008 INFO [stderr]   --> src/main.rs:47:13
Dec 05 23:00:30.008 INFO [stderr]    |
Dec 05 23:00:30.008 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Dec 05 23:00:30.008 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Dec 05 23:00:30.008 INFO [stderr] 
Dec 05 23:00:30.008 INFO [stderr] warning: unused variable: `rows`
Dec 05 23:00:30.008 INFO [stderr]   --> src/main.rs:87:19
Dec 05 23:00:30.008 INFO [stderr]    |
Dec 05 23:00:30.008 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Dec 05 23:00:30.008 INFO [stderr]    |                   ^^^^ help: consider using `_rows` instead
Dec 05 23:00:30.008 INFO [stderr] 
Dec 05 23:00:30.015 INFO [stderr] warning: variable does not need to be mutable
Dec 05 23:00:30.015 INFO [stderr]   --> src/main.rs:47:9
Dec 05 23:00:30.015 INFO [stderr]    |
Dec 05 23:00:30.015 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Dec 05 23:00:30.015 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Dec 05 23:00:30.015 INFO [stderr]    |         |
Dec 05 23:00:30.015 INFO [stderr]    |         help: remove this `mut`
Dec 05 23:00:30.015 INFO [stderr]    |
Dec 05 23:00:30.015 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 23:00:30.015 INFO [stderr] 
Dec 05 23:00:30.056 INFO [stderr] warning: function is never used: `solve`
Dec 05 23:00:30.057 INFO [stderr]   --> src/main.rs:46:1
Dec 05 23:00:30.057 INFO [stderr]    |
Dec 05 23:00:30.057 INFO [stderr] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Dec 05 23:00:30.057 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr]    |
Dec 05 23:00:30.057 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `print_in_order`
Dec 05 23:00:30.057 INFO [stderr]   --> src/main.rs:87:1
Dec 05 23:00:30.057 INFO [stderr]    |
Dec 05 23:00:30.057 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Dec 05 23:00:30.057 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `get_placements_from_basis`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:97:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 97  | / fn get_placements_from_basis(
Dec 05 23:00:30.057 INFO [stderr] 98  | |     rows: i32,
Dec 05 23:00:30.057 INFO [stderr] 99  | |     cols: i32,
Dec 05 23:00:30.057 INFO [stderr] 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Dec 05 23:00:30.057 INFO [stderr] ...   |
Dec 05 23:00:30.057 INFO [stderr] 119 | |     placements
Dec 05 23:00:30.057 INFO [stderr] 120 | | }
Dec 05 23:00:30.057 INFO [stderr]     | |_^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `print_placement`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:135:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `solve_brute_force`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:150:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `is_valid_placement`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:160:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `is_valid_path`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:331:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `enumerate_placements`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:342:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `num_to_coord`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:359:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:30.057 INFO [stderr] warning: function is never used: `get_choose_set`
Dec 05 23:00:30.057 INFO [stderr]    --> src/main.rs:363:1
Dec 05 23:00:30.057 INFO [stderr]     |
Dec 05 23:00:30.057 INFO [stderr] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Dec 05 23:00:30.057 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:30.057 INFO [stderr] 
Dec 05 23:00:31.020 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Dec 05 23:00:31.028 INFO [stderr] su: No module specific data is present
Dec 05 23:00:31.642 INFO running `"docker" "inspect" "55757978cf67173daf689d2a7a288cc8f4b3ee1878a06e38ef5f61f384df3b5b"`
Dec 05 23:00:31.885 INFO running `"docker" "rm" "-f" "55757978cf67173daf689d2a7a288cc8f4b3ee1878a06e38ef5f61f384df3b5b"`
Dec 05 23:00:32.162 INFO [stdout] 55757978cf67173daf689d2a7a288cc8f4b3ee1878a06e38ef5f61f384df3b5b
Dec 05 23:00:32.166 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 23:00:32.636 INFO [stdout] ccf3c0f33ee1a9f17712b9f1129c2e132a3571f8cee8b07a3b6d803652aaa2a7
Dec 05 23:00:32.641 INFO running `"docker" "start" "-a" "ccf3c0f33ee1a9f17712b9f1129c2e132a3571f8cee8b07a3b6d803652aaa2a7"`
Dec 05 23:00:33.748 INFO [stderr] usermod: no changes
Dec 05 23:00:33.816 INFO [stderr]    Compiling queens_on_board v0.1.0 (/source)
Dec 05 23:00:34.300 INFO [stderr] warning: unused variable: `test_case_num`
Dec 05 23:00:34.300 INFO [stderr]   --> src/main.rs:10:9
Dec 05 23:00:34.300 INFO [stderr]    |
Dec 05 23:00:34.300 INFO [stderr] 10 |     for test_case_num in 0..num_test_cases {
Dec 05 23:00:34.300 INFO [stderr]    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Dec 05 23:00:34.300 INFO [stderr]    |
Dec 05 23:00:34.300 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 23:00:34.300 INFO [stderr] 
Dec 05 23:00:34.300 INFO [stderr] warning: unused variable: `all_placements`
Dec 05 23:00:34.300 INFO [stderr]   --> src/main.rs:47:13
Dec 05 23:00:34.300 INFO [stderr]    |
Dec 05 23:00:34.300 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Dec 05 23:00:34.300 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Dec 05 23:00:34.300 INFO [stderr] 
Dec 05 23:00:34.300 INFO [stderr] warning: unused variable: `rows`
Dec 05 23:00:34.300 INFO [stderr]   --> src/main.rs:87:19
Dec 05 23:00:34.300 INFO [stderr]    |
Dec 05 23:00:34.300 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Dec 05 23:00:34.300 INFO [stderr]    |                   ^^^^ help: consider using `_rows` instead
Dec 05 23:00:34.301 INFO [stderr] 
Dec 05 23:00:34.312 INFO [stderr] warning: variable does not need to be mutable
Dec 05 23:00:34.312 INFO [stderr]   --> src/main.rs:47:9
Dec 05 23:00:34.312 INFO [stderr]    |
Dec 05 23:00:34.312 INFO [stderr] 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Dec 05 23:00:34.312 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Dec 05 23:00:34.312 INFO [stderr]    |         |
Dec 05 23:00:34.312 INFO [stderr]    |         help: remove this `mut`
Dec 05 23:00:34.312 INFO [stderr]    |
Dec 05 23:00:34.312 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 23:00:34.312 INFO [stderr] 
Dec 05 23:00:34.344 INFO [stderr] warning: function is never used: `solve`
Dec 05 23:00:34.344 INFO [stderr]   --> src/main.rs:46:1
Dec 05 23:00:34.344 INFO [stderr]    |
Dec 05 23:00:34.344 INFO [stderr] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Dec 05 23:00:34.345 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr]    |
Dec 05 23:00:34.345 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `print_in_order`
Dec 05 23:00:34.345 INFO [stderr]   --> src/main.rs:87:1
Dec 05 23:00:34.345 INFO [stderr]    |
Dec 05 23:00:34.345 INFO [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Dec 05 23:00:34.345 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `get_placements_from_basis`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:97:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 97  | / fn get_placements_from_basis(
Dec 05 23:00:34.345 INFO [stderr] 98  | |     rows: i32,
Dec 05 23:00:34.345 INFO [stderr] 99  | |     cols: i32,
Dec 05 23:00:34.345 INFO [stderr] 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Dec 05 23:00:34.345 INFO [stderr] ...   |
Dec 05 23:00:34.345 INFO [stderr] 119 | |     placements
Dec 05 23:00:34.345 INFO [stderr] 120 | | }
Dec 05 23:00:34.345 INFO [stderr]     | |_^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `print_placement`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:135:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `solve_brute_force`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:150:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `is_valid_placement`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:160:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `is_valid_path`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:331:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `enumerate_placements`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:342:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `num_to_coord`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:359:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.345 INFO [stderr] warning: function is never used: `get_choose_set`
Dec 05 23:00:34.345 INFO [stderr]    --> src/main.rs:363:1
Dec 05 23:00:34.345 INFO [stderr]     |
Dec 05 23:00:34.345 INFO [stderr] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Dec 05 23:00:34.345 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 23:00:34.345 INFO [stderr] 
Dec 05 23:00:34.644 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 05 23:00:34.647 INFO [stderr] su: No module specific data is present
Dec 05 23:00:35.552 INFO running `"docker" "inspect" "ccf3c0f33ee1a9f17712b9f1129c2e132a3571f8cee8b07a3b6d803652aaa2a7"`
Dec 05 23:00:35.782 INFO running `"docker" "rm" "-f" "ccf3c0f33ee1a9f17712b9f1129c2e132a3571f8cee8b07a3b6d803652aaa2a7"`
Dec 05 23:00:36.016 INFO [stdout] ccf3c0f33ee1a9f17712b9f1129c2e132a3571f8cee8b07a3b6d803652aaa2a7
Dec 05 23:00:36.021 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 23:00:36.402 INFO [stdout] 920df5b6b2c3963ceb460766007fba536dadd5218ddfff4cdf1df199fe49d45f
Dec 05 23:00:36.404 INFO running `"docker" "start" "-a" "920df5b6b2c3963ceb460766007fba536dadd5218ddfff4cdf1df199fe49d45f"`
Dec 05 23:00:37.556 INFO [stderr] usermod: no changes
Dec 05 23:00:37.624 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 05 23:00:37.632 INFO [stdout] 
Dec 05 23:00:37.633 INFO [stderr]      Running /target/debug/deps/queens_on_board-b9dbd62c9555fed2
Dec 05 23:00:37.633 INFO [stdout] running 0 tests
Dec 05 23:00:37.633 INFO [stdout] 
Dec 05 23:00:37.633 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 23:00:37.633 INFO [stdout] 
Dec 05 23:00:37.640 INFO [stderr] su: No module specific data is present
Dec 05 23:00:38.252 INFO running `"docker" "inspect" "920df5b6b2c3963ceb460766007fba536dadd5218ddfff4cdf1df199fe49d45f"`
Dec 05 23:00:38.526 INFO running `"docker" "rm" "-f" "920df5b6b2c3963ceb460766007fba536dadd5218ddfff4cdf1df199fe49d45f"`
Dec 05 23:00:38.780 INFO [stdout] 920df5b6b2c3963ceb460766007fba536dadd5218ddfff4cdf1df199fe49d45f