[INFO] updating cached repository AGausmann/tictactoe-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/AGausmann/tictactoe-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/AGausmann/tictactoe-rust" "work/ex/clippy-test-run/sources/stable/gh/AGausmann/tictactoe-rust"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/AGausmann/tictactoe-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/AGausmann/tictactoe-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AGausmann/tictactoe-rust"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AGausmann/tictactoe-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ae30417cb415f8cdf56463a5c0068ee03bb230d6 [INFO] sha for GitHub repo AGausmann/tictactoe-rust: ae30417cb415f8cdf56463a5c0068ee03bb230d6 [INFO] validating manifest of AGausmann/tictactoe-rust on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of AGausmann/tictactoe-rust on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing AGausmann/tictactoe-rust [INFO] finished frobbing AGausmann/tictactoe-rust [INFO] frobbed toml for AGausmann/tictactoe-rust written to work/ex/clippy-test-run/sources/stable/gh/AGausmann/tictactoe-rust/Cargo.toml [INFO] started frobbing AGausmann/tictactoe-rust [INFO] finished frobbing AGausmann/tictactoe-rust [INFO] frobbed toml for AGausmann/tictactoe-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/AGausmann/tictactoe-rust/Cargo.toml [INFO] crate AGausmann/tictactoe-rust has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting AGausmann/tictactoe-rust against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/AGausmann/tictactoe-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 92a3d5fc7b650598e83129488cdea41c555165142e141c04316ac6d0bf78430d [INFO] running `"docker" "start" "-a" "92a3d5fc7b650598e83129488cdea41c555165142e141c04316ac6d0bf78430d"` [INFO] [stderr] Checking tic_tac_toe v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:93:9 [INFO] [stderr] | [INFO] [stderr] 85 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 93 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:94:13 [INFO] [stderr] | [INFO] [stderr] 84 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 94 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 84 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 118 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 94 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 118 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 85 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 119 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 93 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 119 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 85 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 127 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 93 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 127 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 119 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 127 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 84 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 128 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 94 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 128 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 118 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 128 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:190:5 [INFO] [stderr] | [INFO] [stderr] 178 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 190 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:192:9 [INFO] [stderr] | [INFO] [stderr] 176 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 192 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:230:5 [INFO] [stderr] | [INFO] [stderr] 176 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 230 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:230:5 [INFO] [stderr] | [INFO] [stderr] 192 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 230 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 178 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 232 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 190 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 232 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:244:5 [INFO] [stderr] | [INFO] [stderr] 178 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 244 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:244:5 [INFO] [stderr] | [INFO] [stderr] 190 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 244 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:244:5 [INFO] [stderr] | [INFO] [stderr] 232 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 244 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 176 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 246 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 192 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 246 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 230 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 246 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: value assigned to `cell_count` is never read [INFO] [stderr] --> src/main.rs:172:13 [INFO] [stderr] | [INFO] [stderr] 172 | let mut cell_count = 0; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/main.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | / match self { [INFO] [stderr] 29 | | &Cell::Empty => " ", [INFO] [stderr] 30 | | &Cell::X => "X", [INFO] [stderr] 31 | | &Cell::O => "O" [INFO] [stderr] 32 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 28 | match *self { [INFO] [stderr] 29 | Cell::Empty => " ", [INFO] [stderr] 30 | Cell::X => "X", [INFO] [stderr] 31 | Cell::O => "O" [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: the function has a cyclomatic complexity of 27 [INFO] [stderr] --> src/main.rs:171:1 [INFO] [stderr] | [INFO] [stderr] 171 | / fn do_ai(board: &mut Board) { [INFO] [stderr] 172 | | let mut cell_count = 0; [INFO] [stderr] 173 | | let mut empty_cell = 0; [INFO] [stderr] 174 | | [INFO] [stderr] ... | [INFO] [stderr] 289 | | } [INFO] [stderr] 290 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cyclomatic_complexity)] on by default [INFO] [stderr] = help: you could split it up into multiple smaller functions [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity [INFO] [stderr] [INFO] [stderr] warning: unused label `'row` [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 246 | / 'row: for i in 0..3 { [INFO] [stderr] 247 | | match board.cells[i * 3 + j] { [INFO] [stderr] 248 | | Cell::X => cell_count += 1, [INFO] [stderr] 249 | | Cell::O => continue 'col, [INFO] [stderr] 250 | | Cell::Empty => empty_cell = i * 3 + j [INFO] [stderr] 251 | | } [INFO] [stderr] 252 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unused_label)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:186:13 [INFO] [stderr] | [INFO] [stderr] 186 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:200:13 [INFO] [stderr] | [INFO] [stderr] 200 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:213:9 [INFO] [stderr] | [INFO] [stderr] 213 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:225:9 [INFO] [stderr] | [INFO] [stderr] 225 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:240:13 [INFO] [stderr] | [INFO] [stderr] 240 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:254:13 [INFO] [stderr] | [INFO] [stderr] 254 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:267:9 [INFO] [stderr] | [INFO] [stderr] 267 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:279:9 [INFO] [stderr] | [INFO] [stderr] 279 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let` [INFO] [stderr] --> src/main.rs:301:9 [INFO] [stderr] | [INFO] [stderr] 301 | / match io::stdin().read_line(&mut cell) { [INFO] [stderr] 302 | | Err(_) => { [INFO] [stderr] 303 | | println!("Please try again."); [INFO] [stderr] 304 | | continue; [INFO] [stderr] 305 | | } [INFO] [stderr] 306 | | _ => {} [INFO] [stderr] 307 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::single_match)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 301 | if let Err(_) = io::stdin().read_line(&mut cell) { [INFO] [stderr] 302 | println!("Please try again."); [INFO] [stderr] 303 | continue; [INFO] [stderr] 304 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let` [INFO] [stderr] --> src/main.rs:317:9 [INFO] [stderr] | [INFO] [stderr] 317 | / match board.set_x(cell) { [INFO] [stderr] 318 | | Err(e) => { [INFO] [stderr] 319 | | println!("Please choose another: {}", e); [INFO] [stderr] 320 | | continue; [INFO] [stderr] 321 | | }, [INFO] [stderr] 322 | | _ => {} [INFO] [stderr] 323 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 317 | if let Err(e) = board.set_x(cell) { [INFO] [stderr] 318 | println!("Please choose another: {}", e); [INFO] [stderr] 319 | continue; [INFO] [stderr] 320 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:93:9 [INFO] [stderr] | [INFO] [stderr] 85 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 93 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:94:13 [INFO] [stderr] | [INFO] [stderr] 84 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 94 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 84 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 118 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 94 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 118 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 85 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 119 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:119:13 [INFO] [stderr] | [INFO] [stderr] 93 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 119 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 85 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 127 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 93 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 127 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:127:9 [INFO] [stderr] | [INFO] [stderr] 119 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 127 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 84 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 128 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 94 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 128 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 118 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 128 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:190:5 [INFO] [stderr] | [INFO] [stderr] 178 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 190 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:192:9 [INFO] [stderr] | [INFO] [stderr] 176 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 192 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:230:5 [INFO] [stderr] | [INFO] [stderr] 176 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 230 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:230:5 [INFO] [stderr] | [INFO] [stderr] 192 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 230 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 178 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 232 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 190 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 232 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:244:5 [INFO] [stderr] | [INFO] [stderr] 178 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 244 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:244:5 [INFO] [stderr] | [INFO] [stderr] 190 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 244 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'col` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:244:5 [INFO] [stderr] | [INFO] [stderr] 232 | 'col: for j in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 244 | 'col: for j in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'col already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 176 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 246 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 192 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 246 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: label name `'row` shadows a label name that is already in scope [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 230 | 'row: for i in 0..3 { [INFO] [stderr] | ---- first declared here [INFO] [stderr] ... [INFO] [stderr] 246 | 'row: for i in 0..3 { [INFO] [stderr] | ^^^^ lifetime 'row already in scope [INFO] [stderr] [INFO] [stderr] warning: value assigned to `cell_count` is never read [INFO] [stderr] --> src/main.rs:172:13 [INFO] [stderr] | [INFO] [stderr] 172 | let mut cell_count = 0; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/main.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | / match self { [INFO] [stderr] 29 | | &Cell::Empty => " ", [INFO] [stderr] 30 | | &Cell::X => "X", [INFO] [stderr] 31 | | &Cell::O => "O" [INFO] [stderr] 32 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 28 | match *self { [INFO] [stderr] 29 | Cell::Empty => " ", [INFO] [stderr] 30 | Cell::X => "X", [INFO] [stderr] 31 | Cell::O => "O" [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: the function has a cyclomatic complexity of 27 [INFO] [stderr] --> src/main.rs:171:1 [INFO] [stderr] | [INFO] [stderr] 171 | / fn do_ai(board: &mut Board) { [INFO] [stderr] 172 | | let mut cell_count = 0; [INFO] [stderr] 173 | | let mut empty_cell = 0; [INFO] [stderr] 174 | | [INFO] [stderr] ... | [INFO] [stderr] 289 | | } [INFO] [stderr] 290 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cyclomatic_complexity)] on by default [INFO] [stderr] = help: you could split it up into multiple smaller functions [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity [INFO] [stderr] [INFO] [stderr] warning: unused label `'row` [INFO] [stderr] --> src/main.rs:246:9 [INFO] [stderr] | [INFO] [stderr] 246 | / 'row: for i in 0..3 { [INFO] [stderr] 247 | | match board.cells[i * 3 + j] { [INFO] [stderr] 248 | | Cell::X => cell_count += 1, [INFO] [stderr] 249 | | Cell::O => continue 'col, [INFO] [stderr] 250 | | Cell::Empty => empty_cell = i * 3 + j [INFO] [stderr] 251 | | } [INFO] [stderr] 252 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unused_label)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_label [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:186:13 [INFO] [stderr] | [INFO] [stderr] 186 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:200:13 [INFO] [stderr] | [INFO] [stderr] 200 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:213:9 [INFO] [stderr] | [INFO] [stderr] 213 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:225:9 [INFO] [stderr] | [INFO] [stderr] 225 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:240:13 [INFO] [stderr] | [INFO] [stderr] 240 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:254:13 [INFO] [stderr] | [INFO] [stderr] 254 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:267:9 [INFO] [stderr] | [INFO] [stderr] 267 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:279:9 [INFO] [stderr] | [INFO] [stderr] 279 | board.set_o(empty_cell); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let` [INFO] [stderr] --> src/main.rs:301:9 [INFO] [stderr] | [INFO] [stderr] 301 | / match io::stdin().read_line(&mut cell) { [INFO] [stderr] 302 | | Err(_) => { [INFO] [stderr] 303 | | println!("Please try again."); [INFO] [stderr] 304 | | continue; [INFO] [stderr] 305 | | } [INFO] [stderr] 306 | | _ => {} [INFO] [stderr] 307 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::single_match)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 301 | if let Err(_) = io::stdin().read_line(&mut cell) { [INFO] [stderr] 302 | println!("Please try again."); [INFO] [stderr] 303 | continue; [INFO] [stderr] 304 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let` [INFO] [stderr] --> src/main.rs:317:9 [INFO] [stderr] | [INFO] [stderr] 317 | / match board.set_x(cell) { [INFO] [stderr] 318 | | Err(e) => { [INFO] [stderr] 319 | | println!("Please choose another: {}", e); [INFO] [stderr] 320 | | continue; [INFO] [stderr] 321 | | }, [INFO] [stderr] 322 | | _ => {} [INFO] [stderr] 323 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 317 | if let Err(e) = board.set_x(cell) { [INFO] [stderr] 318 | println!("Please choose another: {}", e); [INFO] [stderr] 319 | continue; [INFO] [stderr] 320 | } [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.23s [INFO] running `"docker" "inspect" "92a3d5fc7b650598e83129488cdea41c555165142e141c04316ac6d0bf78430d"` [INFO] running `"docker" "rm" "-f" "92a3d5fc7b650598e83129488cdea41c555165142e141c04316ac6d0bf78430d"` [INFO] [stdout] 92a3d5fc7b650598e83129488cdea41c555165142e141c04316ac6d0bf78430d