Nov 01 04:45:06.006 INFO checking garyemerson/queens_on_board against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 04:45:06.006 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 04:45:06.472 INFO blam! a66c5d54bc0806885e4178dc5318e311bccffe44749a08719e6c79d80232da3c
Nov 01 04:45:06.480 INFO running `"docker" "start" "-a" "a66c5d54bc0806885e4178dc5318e311bccffe44749a08719e6c79d80232da3c"`
Nov 01 04:45:07.976 INFO kablam! usermod: no changes
Nov 01 04:45:08.060 INFO kablam!     Checking queens_on_board v0.1.0 (/source)
Nov 01 04:45:08.871 INFO kablam! warning: unused variable: `test_case_num`
Nov 01 04:45:08.871 INFO kablam!   --> src/main.rs:10:9
Nov 01 04:45:08.871 INFO kablam!    |
Nov 01 04:45:08.871 INFO kablam! 10 |     for test_case_num in 0..num_test_cases {
Nov 01 04:45:08.871 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Nov 01 04:45:08.871 INFO kablam!    |
Nov 01 04:45:08.871 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 04:45:08.871 INFO kablam! 
Nov 01 04:45:08.876 INFO kablam! warning: unused variable: `all_placements`
Nov 01 04:45:08.876 INFO kablam!   --> src/main.rs:47:13
Nov 01 04:45:08.876 INFO kablam!    |
Nov 01 04:45:08.876 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 01 04:45:08.876 INFO kablam!    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Nov 01 04:45:08.877 INFO kablam! 
Nov 01 04:45:08.883 INFO kablam! warning: unused variable: `rows`
Nov 01 04:45:08.883 INFO kablam!   --> src/main.rs:87:19
Nov 01 04:45:08.883 INFO kablam!    |
Nov 01 04:45:08.883 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 01 04:45:08.884 INFO kablam!    |                   ^^^^ help: consider using `_rows` instead
Nov 01 04:45:08.884 INFO kablam! 
Nov 01 04:45:08.893 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:45:08.893 INFO kablam!   --> src/main.rs:47:9
Nov 01 04:45:08.893 INFO kablam!    |
Nov 01 04:45:08.893 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 01 04:45:08.893 INFO kablam!    |         ----^^^^^^^^^^^^^^
Nov 01 04:45:08.893 INFO kablam!    |         |
Nov 01 04:45:08.893 INFO kablam!    |         help: remove this `mut`
Nov 01 04:45:08.893 INFO kablam!    |
Nov 01 04:45:08.893 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 04:45:08.893 INFO kablam! 
Nov 01 04:45:08.944 INFO kablam! warning: function is never used: `solve`
Nov 01 04:45:08.944 INFO kablam!   --> src/main.rs:46:1
Nov 01 04:45:08.944 INFO kablam!    |
Nov 01 04:45:08.944 INFO kablam! 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Nov 01 04:45:08.944 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.944 INFO kablam!    |
Nov 01 04:45:08.944 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 04:45:08.945 INFO kablam! 
Nov 01 04:45:08.945 INFO kablam! warning: function is never used: `print_in_order`
Nov 01 04:45:08.945 INFO kablam!   --> src/main.rs:87:1
Nov 01 04:45:08.945 INFO kablam!    |
Nov 01 04:45:08.945 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 01 04:45:08.945 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.945 INFO kablam! 
Nov 01 04:45:08.945 INFO kablam! warning: function is never used: `get_placements_from_basis`
Nov 01 04:45:08.945 INFO kablam!    --> src/main.rs:97:1
Nov 01 04:45:08.945 INFO kablam!     |
Nov 01 04:45:08.945 INFO kablam! 97  | / fn get_placements_from_basis(
Nov 01 04:45:08.945 INFO kablam! 98  | |     rows: i32,
Nov 01 04:45:08.945 INFO kablam! 99  | |     cols: i32,
Nov 01 04:45:08.945 INFO kablam! 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Nov 01 04:45:08.945 INFO kablam! ...   |
Nov 01 04:45:08.945 INFO kablam! 119 | |     placements
Nov 01 04:45:08.945 INFO kablam! 120 | | }
Nov 01 04:45:08.945 INFO kablam!     | |_^
Nov 01 04:45:08.945 INFO kablam! 
Nov 01 04:45:08.945 INFO kablam! warning: function is never used: `print_placement`
Nov 01 04:45:08.945 INFO kablam!    --> src/main.rs:135:1
Nov 01 04:45:08.945 INFO kablam!     |
Nov 01 04:45:08.945 INFO kablam! 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Nov 01 04:45:08.945 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.945 INFO kablam! 
Nov 01 04:45:08.945 INFO kablam! warning: function is never used: `solve_brute_force`
Nov 01 04:45:08.945 INFO kablam!    --> src/main.rs:150:1
Nov 01 04:45:08.945 INFO kablam!     |
Nov 01 04:45:08.945 INFO kablam! 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Nov 01 04:45:08.945 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.945 INFO kablam! 
Nov 01 04:45:08.945 INFO kablam! warning: function is never used: `is_valid_placement`
Nov 01 04:45:08.945 INFO kablam!    --> src/main.rs:160:1
Nov 01 04:45:08.945 INFO kablam!     |
Nov 01 04:45:08.950 INFO kablam! 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 01 04:45:08.950 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.950 INFO kablam! 
Nov 01 04:45:08.950 INFO kablam! warning: function is never used: `is_valid_path`
Nov 01 04:45:08.950 INFO kablam!    --> src/main.rs:331:1
Nov 01 04:45:08.950 INFO kablam!     |
Nov 01 04:45:08.951 INFO kablam! 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 01 04:45:08.951 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.951 INFO kablam! 
Nov 01 04:45:08.951 INFO kablam! warning: function is never used: `enumerate_placements`
Nov 01 04:45:08.951 INFO kablam!    --> src/main.rs:342:1
Nov 01 04:45:08.951 INFO kablam!     |
Nov 01 04:45:08.951 INFO kablam! 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Nov 01 04:45:08.951 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.951 INFO kablam! 
Nov 01 04:45:08.951 INFO kablam! warning: function is never used: `num_to_coord`
Nov 01 04:45:08.951 INFO kablam!    --> src/main.rs:359:1
Nov 01 04:45:08.951 INFO kablam!     |
Nov 01 04:45:08.951 INFO kablam! 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Nov 01 04:45:08.951 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.951 INFO kablam! 
Nov 01 04:45:08.951 INFO kablam! warning: function is never used: `get_choose_set`
Nov 01 04:45:08.951 INFO kablam!    --> src/main.rs:363:1
Nov 01 04:45:08.951 INFO kablam!     |
Nov 01 04:45:08.951 INFO kablam! 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Nov 01 04:45:08.951 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:08.951 INFO kablam! 
Nov 01 04:45:09.032 INFO kablam! warning: unused variable: `test_case_num`
Nov 01 04:45:09.032 INFO kablam!   --> src/main.rs:10:9
Nov 01 04:45:09.032 INFO kablam!    |
Nov 01 04:45:09.032 INFO kablam! 10 |     for test_case_num in 0..num_test_cases {
Nov 01 04:45:09.032 INFO kablam!    |         ^^^^^^^^^^^^^ help: consider using `_test_case_num` instead
Nov 01 04:45:09.032 INFO kablam!    |
Nov 01 04:45:09.032 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 04:45:09.032 INFO kablam! 
Nov 01 04:45:09.032 INFO kablam! warning: unused variable: `all_placements`
Nov 01 04:45:09.032 INFO kablam!   --> src/main.rs:47:13
Nov 01 04:45:09.032 INFO kablam!    |
Nov 01 04:45:09.032 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 01 04:45:09.032 INFO kablam!    |             ^^^^^^^^^^^^^^ help: consider using `_all_placements` instead
Nov 01 04:45:09.032 INFO kablam! 
Nov 01 04:45:09.033 INFO kablam! warning: unused variable: `rows`
Nov 01 04:45:09.033 INFO kablam!   --> src/main.rs:87:19
Nov 01 04:45:09.033 INFO kablam!    |
Nov 01 04:45:09.033 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 01 04:45:09.033 INFO kablam!    |                   ^^^^ help: consider using `_rows` instead
Nov 01 04:45:09.033 INFO kablam! 
Nov 01 04:45:09.048 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:45:09.048 INFO kablam!   --> src/main.rs:47:9
Nov 01 04:45:09.048 INFO kablam!    |
Nov 01 04:45:09.048 INFO kablam! 47 |     let mut all_placements: Vec<Vec<HashSet<(i32, i32)>>> = Vec::new();
Nov 01 04:45:09.048 INFO kablam!    |         ----^^^^^^^^^^^^^^
Nov 01 04:45:09.048 INFO kablam!    |         |
Nov 01 04:45:09.048 INFO kablam!    |         help: remove this `mut`
Nov 01 04:45:09.048 INFO kablam!    |
Nov 01 04:45:09.048 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 04:45:09.048 INFO kablam! 
Nov 01 04:45:09.088 INFO kablam! warning: function is never used: `solve`
Nov 01 04:45:09.088 INFO kablam!   --> src/main.rs:46:1
Nov 01 04:45:09.089 INFO kablam!    |
Nov 01 04:45:09.089 INFO kablam! 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize {
Nov 01 04:45:09.089 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam!    |
Nov 01 04:45:09.089 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `print_in_order`
Nov 01 04:45:09.089 INFO kablam!   --> src/main.rs:87:1
Nov 01 04:45:09.089 INFO kablam!    |
Nov 01 04:45:09.089 INFO kablam! 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) {
Nov 01 04:45:09.089 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `get_placements_from_basis`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:97:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 97  | / fn get_placements_from_basis(
Nov 01 04:45:09.089 INFO kablam! 98  | |     rows: i32,
Nov 01 04:45:09.089 INFO kablam! 99  | |     cols: i32,
Nov 01 04:45:09.089 INFO kablam! 100 | |     basis_placements: Vec<(HashSet<(i32, i32)>, i32)>,
Nov 01 04:45:09.089 INFO kablam! ...   |
Nov 01 04:45:09.089 INFO kablam! 119 | |     placements
Nov 01 04:45:09.089 INFO kablam! 120 | | }
Nov 01 04:45:09.089 INFO kablam!     | |_^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `print_placement`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:135:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `solve_brute_force`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:150:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec<Vec<(i32, i32)>> {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `is_valid_placement`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:160:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `is_valid_path`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:331:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `enumerate_placements`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:342:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec<Vec<(i32, i32)>> {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `num_to_coord`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:359:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.089 INFO kablam! warning: function is never used: `get_choose_set`
Nov 01 04:45:09.089 INFO kablam!    --> src/main.rs:363:1
Nov 01 04:45:09.089 INFO kablam!     |
Nov 01 04:45:09.089 INFO kablam! 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec<Vec<i32>> {
Nov 01 04:45:09.089 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:45:09.089 INFO kablam! 
Nov 01 04:45:09.136 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
Nov 01 04:45:09.138 INFO kablam! su: No module specific data is present
Nov 01 04:45:10.320 INFO running `"docker" "rm" "-f" "a66c5d54bc0806885e4178dc5318e311bccffe44749a08719e6c79d80232da3c"`
Nov 01 04:45:10.576 INFO blam! a66c5d54bc0806885e4178dc5318e311bccffe44749a08719e6c79d80232da3c