Nov 02 14:14:27.617 INFO checking garyemerson/queens_on_board against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 14:14:27.617 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-5/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 14:14:27.994 INFO blam! 6b0846deb3d5f65621263810863f71c7cddf58a086049a3e50e280064630eb73
Nov 02 14:14:27.995 INFO running `"docker" "start" "-a" "6b0846deb3d5f65621263810863f71c7cddf58a086049a3e50e280064630eb73"`
Nov 02 14:14:30.076 INFO kablam! usermod: no changes
Nov 02 14:14:30.145 INFO kablam!     Checking queens_on_board v0.1.0 (/source)
Nov 02 14:14:30.729 INFO kablam! warning: unused variable: `test_case_num`
Nov 02 14:14:30.729 INFO kablam!   --> src/main.rs:10:9
Nov 02 14:14:30.729 INFO kablam!    |
Nov 02 14:14:30.729 INFO kablam! 10 |     for test_case_num in 0..num_test_cases {
Nov 02 14:14:30.729 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Nov 02 14:14:30.729 INFO kablam!    |
Nov 02 14:14:30.731 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 14:14:30.734 INFO kablam! 
Nov 02 14:14:30.734 INFO kablam! warning: unused variable: `all_placements`
Nov 02 14:14:30.734 INFO kablam!   --> src/main.rs:47:13
Nov 02 14:14:30.734 INFO kablam!    |
Nov 02 14:14:30.734 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 02 14:14:30.734 INFO kablam!    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Nov 02 14:14:30.734 INFO kablam! 
Nov 02 14:14:30.734 INFO kablam! warning: unused variable: `rows`
Nov 02 14:14:30.734 INFO kablam!   --> src/main.rs:87:19
Nov 02 14:14:30.734 INFO kablam!    |
Nov 02 14:14:30.734 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 02 14:14:30.734 INFO kablam!    |                   ^^^^ help: consider using `_rows` instead
Nov 02 14:14:30.734 INFO kablam! 
Nov 02 14:14:30.749 INFO kablam! warning: variable does not need to be mutable
Nov 02 14:14:30.749 INFO kablam!   --> src/main.rs:47:9
Nov 02 14:14:30.749 INFO kablam!    |
Nov 02 14:14:30.749 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 02 14:14:30.749 INFO kablam!    |         ----^^^^^^^^^^^^^^
Nov 02 14:14:30.749 INFO kablam!    |         |
Nov 02 14:14:30.749 INFO kablam!    |         help: remove this `mut`
Nov 02 14:14:30.749 INFO kablam!    |
Nov 02 14:14:30.756 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 14:14:30.757 INFO kablam! 
Nov 02 14:14:30.809 INFO kablam! warning: function is never used: `solve`
Nov 02 14:14:30.809 INFO kablam!   --> src/main.rs:46:1
Nov 02 14:14:30.809 INFO kablam!    |
Nov 02 14:14:30.810 INFO kablam! 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Nov 02 14:14:30.810 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.810 INFO kablam!    |
Nov 02 14:14:30.811 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 02 14:14:30.811 INFO kablam! 
Nov 02 14:14:30.812 INFO kablam! warning: function is never used: `print_in_order`
Nov 02 14:14:30.812 INFO kablam!   --> src/main.rs:87:1
Nov 02 14:14:30.812 INFO kablam!    |
Nov 02 14:14:30.813 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 02 14:14:30.813 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.813 INFO kablam! 
Nov 02 14:14:30.814 INFO kablam! warning: function is never used: `get_placements_from_basis`
Nov 02 14:14:30.814 INFO kablam!    --> src/main.rs:97:1
Nov 02 14:14:30.814 INFO kablam!     |
Nov 02 14:14:30.815 INFO kablam! 97  | / fn get_placements_from_basis(
Nov 02 14:14:30.815 INFO kablam! 98  | |     rows: i32,
Nov 02 14:14:30.815 INFO kablam! 99  | |     cols: i32,
Nov 02 14:14:30.816 INFO kablam! 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Nov 02 14:14:30.816 INFO kablam! ...   |
Nov 02 14:14:30.816 INFO kablam! 119 | |     placements
Nov 02 14:14:30.817 INFO kablam! 120 | | }
Nov 02 14:14:30.817 INFO kablam!     | |_^
Nov 02 14:14:30.817 INFO kablam! 
Nov 02 14:14:30.818 INFO kablam! warning: function is never used: `print_placement`
Nov 02 14:14:30.818 INFO kablam!    --> src/main.rs:135:1
Nov 02 14:14:30.818 INFO kablam!     |
Nov 02 14:14:30.819 INFO kablam! 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Nov 02 14:14:30.819 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.819 INFO kablam! 
Nov 02 14:14:30.820 INFO kablam! warning: function is never used: `solve_brute_force`
Nov 02 14:14:30.820 INFO kablam!    --> src/main.rs:150:1
Nov 02 14:14:30.820 INFO kablam!     |
Nov 02 14:14:30.820 INFO kablam! 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Nov 02 14:14:30.821 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.821 INFO kablam! 
Nov 02 14:14:30.821 INFO kablam! warning: function is never used: `is_valid_placement`
Nov 02 14:14:30.822 INFO kablam!    --> src/main.rs:160:1
Nov 02 14:14:30.822 INFO kablam!     |
Nov 02 14:14:30.822 INFO kablam! 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 02 14:14:30.823 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.823 INFO kablam! 
Nov 02 14:14:30.823 INFO kablam! warning: function is never used: `is_valid_path`
Nov 02 14:14:30.824 INFO kablam!    --> src/main.rs:331:1
Nov 02 14:14:30.824 INFO kablam!     |
Nov 02 14:14:30.824 INFO kablam! 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 02 14:14:30.825 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.825 INFO kablam! 
Nov 02 14:14:30.825 INFO kablam! warning: function is never used: `enumerate_placements`
Nov 02 14:14:30.826 INFO kablam!    --> src/main.rs:342:1
Nov 02 14:14:30.826 INFO kablam!     |
Nov 02 14:14:30.826 INFO kablam! 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Nov 02 14:14:30.827 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.827 INFO kablam! 
Nov 02 14:14:30.827 INFO kablam! warning: function is never used: `num_to_coord`
Nov 02 14:14:30.828 INFO kablam!    --> src/main.rs:359:1
Nov 02 14:14:30.828 INFO kablam!     |
Nov 02 14:14:30.828 INFO kablam! 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Nov 02 14:14:30.829 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.829 INFO kablam! 
Nov 02 14:14:30.829 INFO kablam! warning: function is never used: `get_choose_set`
Nov 02 14:14:30.830 INFO kablam!    --> src/main.rs:363:1
Nov 02 14:14:30.830 INFO kablam!     |
Nov 02 14:14:30.830 INFO kablam! 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Nov 02 14:14:30.831 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:30.831 INFO kablam! 
Nov 02 14:14:31.175 INFO kablam! warning: unused variable: `test_case_num`
Nov 02 14:14:31.175 INFO kablam!   --> src/main.rs:10:9
Nov 02 14:14:31.175 INFO kablam!    |
Nov 02 14:14:31.176 INFO kablam! 10 |     for test_case_num in 0..num_test_cases {
Nov 02 14:14:31.176 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Nov 02 14:14:31.176 INFO kablam!    |
Nov 02 14:14:31.176 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 14:14:31.176 INFO kablam! 
Nov 02 14:14:31.176 INFO kablam! warning: unused variable: `all_placements`
Nov 02 14:14:31.177 INFO kablam!   --> src/main.rs:47:13
Nov 02 14:14:31.177 INFO kablam!    |
Nov 02 14:14:31.177 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 02 14:14:31.177 INFO kablam!    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Nov 02 14:14:31.177 INFO kablam! 
Nov 02 14:14:31.177 INFO kablam! warning: unused variable: `rows`
Nov 02 14:14:31.178 INFO kablam!   --> src/main.rs:87:19
Nov 02 14:14:31.178 INFO kablam!    |
Nov 02 14:14:31.178 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 02 14:14:31.178 INFO kablam!    |                   ^^^^ help: consider using `_rows` instead
Nov 02 14:14:31.178 INFO kablam! 
Nov 02 14:14:31.183 INFO kablam! warning: variable does not need to be mutable
Nov 02 14:14:31.183 INFO kablam!   --> src/main.rs:47:9
Nov 02 14:14:31.183 INFO kablam!    |
Nov 02 14:14:31.183 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 02 14:14:31.183 INFO kablam!    |         ----^^^^^^^^^^^^^^
Nov 02 14:14:31.184 INFO kablam!    |         |
Nov 02 14:14:31.184 INFO kablam!    |         help: remove this `mut`
Nov 02 14:14:31.184 INFO kablam!    |
Nov 02 14:14:31.184 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 14:14:31.184 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `solve`
Nov 02 14:14:31.240 INFO kablam!   --> src/main.rs:46:1
Nov 02 14:14:31.240 INFO kablam!    |
Nov 02 14:14:31.240 INFO kablam! 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Nov 02 14:14:31.240 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam!    |
Nov 02 14:14:31.240 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `print_in_order`
Nov 02 14:14:31.240 INFO kablam!   --> src/main.rs:87:1
Nov 02 14:14:31.240 INFO kablam!    |
Nov 02 14:14:31.240 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 02 14:14:31.240 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `get_placements_from_basis`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:97:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 97  | / fn get_placements_from_basis(
Nov 02 14:14:31.240 INFO kablam! 98  | |     rows: i32,
Nov 02 14:14:31.240 INFO kablam! 99  | |     cols: i32,
Nov 02 14:14:31.240 INFO kablam! 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Nov 02 14:14:31.240 INFO kablam! ...   |
Nov 02 14:14:31.240 INFO kablam! 119 | |     placements
Nov 02 14:14:31.240 INFO kablam! 120 | | }
Nov 02 14:14:31.240 INFO kablam!     | |_^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `print_placement`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:135:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Nov 02 14:14:31.240 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `solve_brute_force`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:150:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Nov 02 14:14:31.240 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `is_valid_placement`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:160:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 02 14:14:31.240 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `is_valid_path`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:331:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 02 14:14:31.240 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `enumerate_placements`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:342:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Nov 02 14:14:31.240 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `num_to_coord`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:359:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.240 INFO kablam! 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Nov 02 14:14:31.240 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.240 INFO kablam! 
Nov 02 14:14:31.240 INFO kablam! warning: function is never used: `get_choose_set`
Nov 02 14:14:31.240 INFO kablam!    --> src/main.rs:363:1
Nov 02 14:14:31.240 INFO kablam!     |
Nov 02 14:14:31.241 INFO kablam! 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Nov 02 14:14:31.241 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 14:14:31.241 INFO kablam! 
Nov 02 14:14:31.316 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Nov 02 14:14:31.316 INFO kablam! su: No module specific data is present
Nov 02 14:14:32.334 INFO running `"docker" "rm" "-f" "6b0846deb3d5f65621263810863f71c7cddf58a086049a3e50e280064630eb73"`
Nov 02 14:14:32.580 INFO blam! 6b0846deb3d5f65621263810863f71c7cddf58a086049a3e50e280064630eb73