Oct 27 04:27:52.320 INFO checking garyemerson/queens_on_board against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192-2
Oct 27 04:27:52.322 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-5/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-55192-2/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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"`
Oct 27 04:27:52.799 INFO blam! 5313a8b3caa6c47b63b4396a8851f1158b2fec4661329d75aa3e8586f057864f
Oct 27 04:27:52.802 INFO running `"docker" "start" "-a" "5313a8b3caa6c47b63b4396a8851f1158b2fec4661329d75aa3e8586f057864f"`
Oct 27 04:27:54.215 INFO kablam! usermod: no changes
Oct 27 04:27:54.309 INFO kablam!     Checking queens_on_board v0.1.0 (/source)
Oct 27 04:27:54.903 INFO kablam! warning: unused variable: `test_case_num`
Oct 27 04:27:54.903 INFO kablam!   --> src/main.rs:10:9
Oct 27 04:27:54.903 INFO kablam!    |
Oct 27 04:27:54.903 INFO kablam! 10 |     for test_case_num in 0..num_test_cases {
Oct 27 04:27:54.903 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Oct 27 04:27:54.903 INFO kablam!    |
Oct 27 04:27:54.903 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 27 04:27:54.903 INFO kablam! 
Oct 27 04:27:54.903 INFO kablam! warning: unused variable: `all_placements`
Oct 27 04:27:54.903 INFO kablam!   --> src/main.rs:47:13
Oct 27 04:27:54.903 INFO kablam!    |
Oct 27 04:27:54.903 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Oct 27 04:27:54.903 INFO kablam!    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Oct 27 04:27:54.903 INFO kablam! 
Oct 27 04:27:54.903 INFO kablam! warning: unused variable: `rows`
Oct 27 04:27:54.903 INFO kablam!   --> src/main.rs:87:19
Oct 27 04:27:54.903 INFO kablam!    |
Oct 27 04:27:54.903 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Oct 27 04:27:54.903 INFO kablam!    |                   ^^^^ help: consider using `_rows` instead
Oct 27 04:27:54.903 INFO kablam! 
Oct 27 04:27:54.903 INFO kablam! warning: variable does not need to be mutable
Oct 27 04:27:54.903 INFO kablam!   --> src/main.rs:47:9
Oct 27 04:27:54.903 INFO kablam!    |
Oct 27 04:27:54.903 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Oct 27 04:27:54.903 INFO kablam!    |         ----^^^^^^^^^^^^^^
Oct 27 04:27:54.903 INFO kablam!    |         |
Oct 27 04:27:54.915 INFO kablam!    |         help: remove this `mut`
Oct 27 04:27:54.915 INFO kablam! warning: unused variable: `test_case_num`
Oct 27 04:27:54.915 INFO kablam!   --> src/main.rs:10:9
Oct 27 04:27:54.915 INFO kablam!    |
Oct 27 04:27:54.916 INFO kablam! 10 |     for test_case_num in 0..num_test_cases {
Oct 27 04:27:54.916 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Oct 27 04:27:54.916 INFO kablam!    |
Oct 27 04:27:54.916 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 27 04:27:54.916 INFO kablam! 
Oct 27 04:27:54.916 INFO kablam! warning: unused variable: `all_placements`
Oct 27 04:27:54.917 INFO kablam!   --> src/main.rs:47:13
Oct 27 04:27:54.917 INFO kablam!    |
Oct 27 04:27:54.917 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Oct 27 04:27:54.917 INFO kablam!    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Oct 27 04:27:54.917 INFO kablam! 
Oct 27 04:27:54.917 INFO kablam! warning: unused variable: `rows`
Oct 27 04:27:54.918 INFO kablam!   --> src/main.rs:87:19
Oct 27 04:27:54.918 INFO kablam!    |
Oct 27 04:27:54.918 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Oct 27 04:27:54.918 INFO kablam!    |                   ^^^^ help: consider using `_rows` instead
Oct 27 04:27:54.918 INFO kablam! 
Oct 27 04:27:54.918 INFO kablam! warning: variable does not need to be mutable
Oct 27 04:27:54.919 INFO kablam!   --> src/main.rs:47:9
Oct 27 04:27:54.919 INFO kablam!    |
Oct 27 04:27:54.919 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Oct 27 04:27:54.919 INFO kablam!    |         ----^^^^^^^^^^^^^^
Oct 27 04:27:54.919 INFO kablam!    |         |
Oct 27 04:27:54.919 INFO kablam!    |         help: remove this `mut`
Oct 27 04:27:54.920 INFO kablam!    |
Oct 27 04:27:54.920 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 04:27:54.920 INFO kablam! 
Oct 27 04:27:54.920 INFO kablam!    |
Oct 27 04:27:54.920 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 27 04:27:54.920 INFO kablam! 
Oct 27 04:27:54.955 INFO kablam! warning: function is never used: `solve`
Oct 27 04:27:54.955 INFO kablam!   --> src/main.rs:46:1
Oct 27 04:27:54.955 INFO kablam!    |
Oct 27 04:27:54.955 INFO kablam! 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Oct 27 04:27:54.956 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.956 INFO kablam!    |
Oct 27 04:27:54.956 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 27 04:27:54.956 INFO kablam! 
Oct 27 04:27:54.956 INFO kablam! warning: function is never used: `print_in_order`
Oct 27 04:27:54.956 INFO kablam!   --> src/main.rs:87:1
Oct 27 04:27:54.957 INFO kablam!    |
Oct 27 04:27:54.957 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Oct 27 04:27:54.957 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.957 INFO kablam! 
Oct 27 04:27:54.957 INFO kablam! warning: function is never used: `get_placements_from_basis`
Oct 27 04:27:54.958 INFO kablam!    --> src/main.rs:97:1
Oct 27 04:27:54.958 INFO kablam!     |
Oct 27 04:27:54.958 INFO kablam! 97  | / fn get_placements_from_basis(
Oct 27 04:27:54.958 INFO kablam! 98  | |     rows: i32,
Oct 27 04:27:54.958 INFO kablam! 99  | |     cols: i32,
Oct 27 04:27:54.958 INFO kablam! 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Oct 27 04:27:54.959 INFO kablam! ...   |
Oct 27 04:27:54.959 INFO kablam! 119 | |     placements
Oct 27 04:27:54.959 INFO kablam! 120 | | }
Oct 27 04:27:54.959 INFO kablam!     | |_^
Oct 27 04:27:54.959 INFO kablam! 
Oct 27 04:27:54.959 INFO kablam! warning: function is never used: `print_placement`
Oct 27 04:27:54.960 INFO kablam!    --> src/main.rs:135:1
Oct 27 04:27:54.960 INFO kablam!     |
Oct 27 04:27:54.960 INFO kablam! 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Oct 27 04:27:54.960 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.960 INFO kablam! 
Oct 27 04:27:54.961 INFO kablam! warning: function is never used: `solve_brute_force`
Oct 27 04:27:54.961 INFO kablam!    --> src/main.rs:150:1
Oct 27 04:27:54.961 INFO kablam!     |
Oct 27 04:27:54.961 INFO kablam! 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Oct 27 04:27:54.961 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.962 INFO kablam! 
Oct 27 04:27:54.962 INFO kablam! warning: function is never used: `is_valid_placement`
Oct 27 04:27:54.962 INFO kablam!    --> src/main.rs:160:1
Oct 27 04:27:54.962 INFO kablam!     |
Oct 27 04:27:54.962 INFO kablam! 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Oct 27 04:27:54.963 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.963 INFO kablam! 
Oct 27 04:27:54.963 INFO kablam! warning: function is never used: `is_valid_path`
Oct 27 04:27:54.963 INFO kablam!    --> src/main.rs:331:1
Oct 27 04:27:54.963 INFO kablam!     |
Oct 27 04:27:54.963 INFO kablam! 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Oct 27 04:27:54.964 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.964 INFO kablam! 
Oct 27 04:27:54.964 INFO kablam! warning: function is never used: `enumerate_placements`
Oct 27 04:27:54.964 INFO kablam!    --> src/main.rs:342:1
Oct 27 04:27:54.964 INFO kablam!     |
Oct 27 04:27:54.964 INFO kablam! 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Oct 27 04:27:54.965 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.965 INFO kablam! 
Oct 27 04:27:54.965 INFO kablam! warning: function is never used: `num_to_coord`
Oct 27 04:27:54.965 INFO kablam!    --> src/main.rs:359:1
Oct 27 04:27:54.965 INFO kablam!     |
Oct 27 04:27:54.965 INFO kablam! 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Oct 27 04:27:54.966 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.966 INFO kablam! 
Oct 27 04:27:54.966 INFO kablam! warning: function is never used: `get_choose_set`
Oct 27 04:27:54.966 INFO kablam!    --> src/main.rs:363:1
Oct 27 04:27:54.966 INFO kablam!     |
Oct 27 04:27:54.966 INFO kablam! 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Oct 27 04:27:54.967 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.967 INFO kablam! 
Oct 27 04:27:54.987 INFO kablam! warning: function is never used: `solve`
Oct 27 04:27:54.987 INFO kablam!   --> src/main.rs:46:1
Oct 27 04:27:54.987 INFO kablam!    |
Oct 27 04:27:54.988 INFO kablam! 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Oct 27 04:27:54.988 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.988 INFO kablam!    |
Oct 27 04:27:54.988 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 27 04:27:54.988 INFO kablam! 
Oct 27 04:27:54.988 INFO kablam! warning: function is never used: `print_in_order`
Oct 27 04:27:54.989 INFO kablam!   --> src/main.rs:87:1
Oct 27 04:27:54.989 INFO kablam!    |
Oct 27 04:27:54.989 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Oct 27 04:27:54.989 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.989 INFO kablam! 
Oct 27 04:27:54.989 INFO kablam! warning: function is never used: `get_placements_from_basis`
Oct 27 04:27:54.990 INFO kablam!    --> src/main.rs:97:1
Oct 27 04:27:54.990 INFO kablam!     |
Oct 27 04:27:54.990 INFO kablam! 97  | / fn get_placements_from_basis(
Oct 27 04:27:54.990 INFO kablam! 98  | |     rows: i32,
Oct 27 04:27:54.990 INFO kablam! 99  | |     cols: i32,
Oct 27 04:27:54.990 INFO kablam! 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Oct 27 04:27:54.991 INFO kablam! ...   |
Oct 27 04:27:54.991 INFO kablam! 119 | |     placements
Oct 27 04:27:54.991 INFO kablam! 120 | | }
Oct 27 04:27:54.991 INFO kablam!     | |_^
Oct 27 04:27:54.991 INFO kablam! 
Oct 27 04:27:54.991 INFO kablam! warning: function is never used: `print_placement`
Oct 27 04:27:54.992 INFO kablam!    --> src/main.rs:135:1
Oct 27 04:27:54.992 INFO kablam!     |
Oct 27 04:27:54.992 INFO kablam! 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Oct 27 04:27:54.992 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.992 INFO kablam! 
Oct 27 04:27:54.992 INFO kablam! warning: function is never used: `solve_brute_force`
Oct 27 04:27:54.993 INFO kablam!    --> src/main.rs:150:1
Oct 27 04:27:54.993 INFO kablam!     |
Oct 27 04:27:54.993 INFO kablam! 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Oct 27 04:27:54.993 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.993 INFO kablam! 
Oct 27 04:27:54.993 INFO kablam! warning: function is never used: `is_valid_placement`
Oct 27 04:27:54.994 INFO kablam!    --> src/main.rs:160:1
Oct 27 04:27:54.994 INFO kablam!     |
Oct 27 04:27:54.994 INFO kablam! 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Oct 27 04:27:54.994 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.994 INFO kablam! 
Oct 27 04:27:54.994 INFO kablam! warning: function is never used: `is_valid_path`
Oct 27 04:27:54.995 INFO kablam!    --> src/main.rs:331:1
Oct 27 04:27:54.995 INFO kablam!     |
Oct 27 04:27:54.995 INFO kablam! 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Oct 27 04:27:54.995 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.995 INFO kablam! 
Oct 27 04:27:54.995 INFO kablam! warning: function is never used: `enumerate_placements`
Oct 27 04:27:54.995 INFO kablam!    --> src/main.rs:342:1
Oct 27 04:27:54.995 INFO kablam!     |
Oct 27 04:27:54.995 INFO kablam! 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Oct 27 04:27:54.995 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.995 INFO kablam! 
Oct 27 04:27:54.995 INFO kablam! warning: function is never used: `num_to_coord`
Oct 27 04:27:54.995 INFO kablam!    --> src/main.rs:359:1
Oct 27 04:27:54.995 INFO kablam!     |
Oct 27 04:27:54.995 INFO kablam! 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Oct 27 04:27:54.995 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.995 INFO kablam! 
Oct 27 04:27:54.995 INFO kablam! warning: function is never used: `get_choose_set`
Oct 27 04:27:54.995 INFO kablam!    --> src/main.rs:363:1
Oct 27 04:27:54.995 INFO kablam!     |
Oct 27 04:27:54.995 INFO kablam! 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Oct 27 04:27:54.995 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 04:27:54.995 INFO kablam! 
Oct 27 04:27:55.042 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Oct 27 04:27:55.043 INFO kablam! su: No module specific data is present
Oct 27 04:27:55.781 INFO running `"docker" "rm" "-f" "5313a8b3caa6c47b63b4396a8851f1158b2fec4661329d75aa3e8586f057864f"`
Oct 27 04:27:56.039 INFO blam! 5313a8b3caa6c47b63b4396a8851f1158b2fec4661329d75aa3e8586f057864f