[INFO] updating cached repository https://github.com/garyemerson/queens_on_board [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 23f06b5f4a0fd3181a3420ef359fc37791eb8312 [INFO] testing garyemerson/queens_on_board against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgaryemerson%2Fqueens_on_board" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/garyemerson/queens_on_board on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/garyemerson/queens_on_board [INFO] finished tweaking git repo https://github.com/garyemerson/queens_on_board [INFO] tweaked toml for git repo https://github.com/garyemerson/queens_on_board written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/garyemerson/queens_on_board already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e7a9cacc9addd173ff698ba998062c9669f80664f29e9259f17c1d8e4b0f73e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3e7a9cacc9addd173ff698ba998062c9669f80664f29e9259f17c1d8e4b0f73e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e7a9cacc9addd173ff698ba998062c9669f80664f29e9259f17c1d8e4b0f73e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e7a9cacc9addd173ff698ba998062c9669f80664f29e9259f17c1d8e4b0f73e", kill_on_drop: false }` [INFO] [stdout] 3e7a9cacc9addd173ff698ba998062c9669f80664f29e9259f17c1d8e4b0f73e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a40f62e4e3d2adf233ca2553aa33d380180d8d6bf47e091e9de3ae9a671789a0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a40f62e4e3d2adf233ca2553aa33d380180d8d6bf47e091e9de3ae9a671789a0", kill_on_drop: false }` [INFO] [stderr] Compiling queens_on_board v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `test_case_num` [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | for test_case_num in 0..num_test_cases { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_case_num` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `all_placements` [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut all_placements: Vec>> = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_placements` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rows` [INFO] [stdout] --> src/main.rs:87:19 [INFO] [stdout] | [INFO] [stdout] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_rows` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut all_placements: Vec>> = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve` [INFO] [stdout] --> src/main.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_in_order` [INFO] [stdout] --> src/main.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_placements_from_basis` [INFO] [stdout] --> src/main.rs:97:4 [INFO] [stdout] | [INFO] [stdout] 97 | fn get_placements_from_basis( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_placement` [INFO] [stdout] --> src/main.rs:135:4 [INFO] [stdout] | [INFO] [stdout] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve_brute_force` [INFO] [stdout] --> src/main.rs:150:4 [INFO] [stdout] | [INFO] [stdout] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_valid_placement` [INFO] [stdout] --> src/main.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_valid_path` [INFO] [stdout] --> src/main.rs:331:4 [INFO] [stdout] | [INFO] [stdout] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `enumerate_placements` [INFO] [stdout] --> src/main.rs:342:4 [INFO] [stdout] | [INFO] [stdout] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `num_to_coord` [INFO] [stdout] --> src/main.rs:359:4 [INFO] [stdout] | [INFO] [stdout] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_choose_set` [INFO] [stdout] --> src/main.rs:363:4 [INFO] [stdout] | [INFO] [stdout] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.35s [INFO] running `Command { std: "docker" "inspect" "a40f62e4e3d2adf233ca2553aa33d380180d8d6bf47e091e9de3ae9a671789a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a40f62e4e3d2adf233ca2553aa33d380180d8d6bf47e091e9de3ae9a671789a0", kill_on_drop: false }` [INFO] [stdout] a40f62e4e3d2adf233ca2553aa33d380180d8d6bf47e091e9de3ae9a671789a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 053e54b40be8798166e383a18e3e1b1aa9a9992891768cc3f02016c882ac251a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "053e54b40be8798166e383a18e3e1b1aa9a9992891768cc3f02016c882ac251a", kill_on_drop: false }` [INFO] [stderr] Compiling queens_on_board v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `test_case_num` [INFO] [stdout] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | for test_case_num in 0..num_test_cases { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_case_num` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `all_placements` [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut all_placements: Vec>> = Vec::new(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_placements` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rows` [INFO] [stdout] --> src/main.rs:87:19 [INFO] [stdout] | [INFO] [stdout] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_rows` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut all_placements: Vec>> = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve` [INFO] [stdout] --> src/main.rs:46:4 [INFO] [stdout] | [INFO] [stdout] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_in_order` [INFO] [stdout] --> src/main.rs:87:4 [INFO] [stdout] | [INFO] [stdout] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_placements_from_basis` [INFO] [stdout] --> src/main.rs:97:4 [INFO] [stdout] | [INFO] [stdout] 97 | fn get_placements_from_basis( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_placement` [INFO] [stdout] --> src/main.rs:135:4 [INFO] [stdout] | [INFO] [stdout] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `solve_brute_force` [INFO] [stdout] --> src/main.rs:150:4 [INFO] [stdout] | [INFO] [stdout] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_valid_placement` [INFO] [stdout] --> src/main.rs:160:4 [INFO] [stdout] | [INFO] [stdout] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_valid_path` [INFO] [stdout] --> src/main.rs:331:4 [INFO] [stdout] | [INFO] [stdout] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `enumerate_placements` [INFO] [stdout] --> src/main.rs:342:4 [INFO] [stdout] | [INFO] [stdout] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `num_to_coord` [INFO] [stdout] --> src/main.rs:359:4 [INFO] [stdout] | [INFO] [stdout] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_choose_set` [INFO] [stdout] --> src/main.rs:363:4 [INFO] [stdout] | [INFO] [stdout] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.70s [INFO] running `Command { std: "docker" "inspect" "053e54b40be8798166e383a18e3e1b1aa9a9992891768cc3f02016c882ac251a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "053e54b40be8798166e383a18e3e1b1aa9a9992891768cc3f02016c882ac251a", kill_on_drop: false }` [INFO] [stdout] 053e54b40be8798166e383a18e3e1b1aa9a9992891768cc3f02016c882ac251a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f85bc0a11e0c0afce1326d877ebbe5394a6558534737e96cc5635844f7f2e08f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f85bc0a11e0c0afce1326d877ebbe5394a6558534737e96cc5635844f7f2e08f", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused variable: `test_case_num` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] 10 | for test_case_num in 0..num_test_cases { [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_case_num` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `all_placements` [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut all_placements: Vec>> = Vec::new(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_placements` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rows` [INFO] [stderr] --> src/main.rs:87:19 [INFO] [stderr] | [INFO] [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_rows` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut all_placements: Vec>> = Vec::new(); [INFO] [stderr] | ----^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve` [INFO] [stderr] --> src/main.rs:46:4 [INFO] [stderr] | [INFO] [stderr] 46 | fn solve(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> usize { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_in_order` [INFO] [stderr] --> src/main.rs:87:4 [INFO] [stderr] | [INFO] [stderr] 87 | fn print_in_order(rows: i32, cols: i32, placement: &HashSet<(i32, i32)>) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_placements_from_basis` [INFO] [stderr] --> src/main.rs:97:4 [INFO] [stderr] | [INFO] [stderr] 97 | fn get_placements_from_basis( [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_placement` [INFO] [stderr] --> src/main.rs:135:4 [INFO] [stderr] | [INFO] [stderr] 135 | fn print_placement(rows: i32, cols: i32, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `solve_brute_force` [INFO] [stderr] --> src/main.rs:150:4 [INFO] [stderr] | [INFO] [stderr] 150 | fn solve_brute_force(rows: i32, cols: i32, blocked_positions: &HashSet<(i32, i32)>) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_valid_placement` [INFO] [stderr] --> src/main.rs:160:4 [INFO] [stderr] | [INFO] [stderr] 160 | fn is_valid_placement(rows: i32, cols: i32, positions: &Vec<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_valid_path` [INFO] [stderr] --> src/main.rs:331:4 [INFO] [stderr] | [INFO] [stderr] 331 | fn is_valid_path(path: Vec<(i32, i32)>, occupied_positions: &HashSet<(i32, i32)>, blocked_positions: &HashSet<(i32, i32)>) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `enumerate_placements` [INFO] [stderr] --> src/main.rs:342:4 [INFO] [stderr] | [INFO] [stderr] 342 | fn enumerate_placements(rows: i32, cols: i32, max_queens: i32) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `num_to_coord` [INFO] [stderr] --> src/main.rs:359:4 [INFO] [stderr] | [INFO] [stderr] 359 | fn num_to_coord(cols: i32, num: i32) -> (i32, i32) { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_choose_set` [INFO] [stderr] --> src/main.rs:363:4 [INFO] [stderr] | [INFO] [stderr] 363 | fn get_choose_set(start: i32, end: i32, num: i32) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/queens_on_board-5324903891c4f827 [INFO] running `Command { std: "docker" "inspect" "f85bc0a11e0c0afce1326d877ebbe5394a6558534737e96cc5635844f7f2e08f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f85bc0a11e0c0afce1326d877ebbe5394a6558534737e96cc5635844f7f2e08f", kill_on_drop: false }` [INFO] [stdout] f85bc0a11e0c0afce1326d877ebbe5394a6558534737e96cc5635844f7f2e08f