Dec 05 03:40:34.947 INFO checking AGausmann/tictactoe-rust against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 03:40:34.947 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 03:40:35.409 INFO [stdout] cd7c4045c596875eb96b8796e9a29c5029c9d018b7f8686e46d2da15b06fac4a
Dec 05 03:40:35.419 INFO running `"docker" "start" "-a" "cd7c4045c596875eb96b8796e9a29c5029c9d018b7f8686e46d2da15b06fac4a"`
Dec 05 03:40:36.743 INFO [stderr] usermod: no changes
Dec 05 03:40:36.815 INFO [stderr]     Checking tic_tac_toe v0.1.0 (/source)
Dec 05 03:40:37.330 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.330 INFO [stderr]   --> src/main.rs:93:9
Dec 05 03:40:37.330 INFO [stderr]    |
Dec 05 03:40:37.330 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 05 03:40:37.330 INFO [stderr]    |             ---- first declared here
Dec 05 03:40:37.330 INFO [stderr] ...
Dec 05 03:40:37.330 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 05 03:40:37.330 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.330 INFO [stderr] 
Dec 05 03:40:37.330 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.330 INFO [stderr]   --> src/main.rs:94:13
Dec 05 03:40:37.330 INFO [stderr]    |
Dec 05 03:40:37.330 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 05 03:40:37.330 INFO [stderr]    |         ---- first declared here
Dec 05 03:40:37.330 INFO [stderr] ...
Dec 05 03:40:37.330 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:118:9
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:118:9
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:119:13
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:119:13
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:127:9
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:127:9
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:127:9
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:128:13
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.331 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.331 INFO [stderr]    --> src/main.rs:128:13
Dec 05 03:40:37.331 INFO [stderr]     |
Dec 05 03:40:37.331 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.331 INFO [stderr] ...
Dec 05 03:40:37.331 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 05 03:40:37.331 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.331 INFO [stderr] 
Dec 05 03:40:37.332 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.332 INFO [stderr]    --> src/main.rs:128:13
Dec 05 03:40:37.332 INFO [stderr]     |
Dec 05 03:40:37.332 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.332 INFO [stderr] ...
Dec 05 03:40:37.332 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.332 INFO [stderr] 
Dec 05 03:40:37.332 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.332 INFO [stderr]    --> src/main.rs:190:5
Dec 05 03:40:37.332 INFO [stderr]     |
Dec 05 03:40:37.332 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.332 INFO [stderr] ...
Dec 05 03:40:37.332 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.332 INFO [stderr] 
Dec 05 03:40:37.332 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.332 INFO [stderr]    --> src/main.rs:192:9
Dec 05 03:40:37.332 INFO [stderr]     |
Dec 05 03:40:37.332 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.332 INFO [stderr] ...
Dec 05 03:40:37.332 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.332 INFO [stderr] 
Dec 05 03:40:37.332 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.332 INFO [stderr]    --> src/main.rs:230:5
Dec 05 03:40:37.332 INFO [stderr]     |
Dec 05 03:40:37.332 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.332 INFO [stderr] ...
Dec 05 03:40:37.332 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.332 INFO [stderr] 
Dec 05 03:40:37.332 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.332 INFO [stderr]    --> src/main.rs:230:5
Dec 05 03:40:37.332 INFO [stderr]     |
Dec 05 03:40:37.332 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.332 INFO [stderr] ...
Dec 05 03:40:37.332 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 05 03:40:37.332 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.332 INFO [stderr] 
Dec 05 03:40:37.332 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.332 INFO [stderr]    --> src/main.rs:232:9
Dec 05 03:40:37.332 INFO [stderr]     |
Dec 05 03:40:37.332 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:232:9
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:244:5
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:244:5
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:244:5
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:246:9
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:246:9
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.333 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.333 INFO [stderr]    --> src/main.rs:246:9
Dec 05 03:40:37.333 INFO [stderr]     |
Dec 05 03:40:37.333 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.333 INFO [stderr] ...
Dec 05 03:40:37.333 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 05 03:40:37.333 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.333 INFO [stderr] 
Dec 05 03:40:37.439 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 05 03:40:37.439 INFO [stderr]    --> src/main.rs:172:13
Dec 05 03:40:37.439 INFO [stderr]     |
Dec 05 03:40:37.439 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 05 03:40:37.439 INFO [stderr]     |             ^^^^^^^^^^
Dec 05 03:40:37.439 INFO [stderr]     |
Dec 05 03:40:37.439 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 05 03:40:37.439 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.459 INFO [stderr]    --> src/main.rs:186:13
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 05 03:40:37.459 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 03:40:37.459 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.459 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.459 INFO [stderr]    --> src/main.rs:200:13
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 05 03:40:37.459 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.459 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.459 INFO [stderr]    --> src/main.rs:213:9
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 05 03:40:37.459 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.459 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.459 INFO [stderr]    --> src/main.rs:225:9
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 05 03:40:37.459 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.459 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.459 INFO [stderr]    --> src/main.rs:240:13
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 05 03:40:37.459 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.459 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.459 INFO [stderr]    --> src/main.rs:254:13
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 05 03:40:37.459 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.459 INFO [stderr]     |
Dec 05 03:40:37.459 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.459 INFO [stderr] 
Dec 05 03:40:37.459 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.460 INFO [stderr]    --> src/main.rs:267:9
Dec 05 03:40:37.460 INFO [stderr]     |
Dec 05 03:40:37.460 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 05 03:40:37.460 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.460 INFO [stderr]     |
Dec 05 03:40:37.460 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.460 INFO [stderr] 
Dec 05 03:40:37.460 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.460 INFO [stderr]    --> src/main.rs:279:9
Dec 05 03:40:37.460 INFO [stderr]     |
Dec 05 03:40:37.460 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 05 03:40:37.460 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.460 INFO [stderr]     |
Dec 05 03:40:37.460 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.460 INFO [stderr] 
Dec 05 03:40:37.703 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]   --> src/main.rs:93:9
Dec 05 03:40:37.704 INFO [stderr]    |
Dec 05 03:40:37.704 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]    |             ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.704 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]   --> src/main.rs:94:13
Dec 05 03:40:37.704 INFO [stderr]    |
Dec 05 03:40:37.704 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]    |         ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.704 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]    --> src/main.rs:118:9
Dec 05 03:40:37.704 INFO [stderr]     |
Dec 05 03:40:37.704 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.704 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]    --> src/main.rs:118:9
Dec 05 03:40:37.704 INFO [stderr]     |
Dec 05 03:40:37.704 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.704 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]    --> src/main.rs:119:13
Dec 05 03:40:37.704 INFO [stderr]     |
Dec 05 03:40:37.704 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.704 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]    --> src/main.rs:119:13
Dec 05 03:40:37.704 INFO [stderr]     |
Dec 05 03:40:37.704 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.704 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.704 INFO [stderr]    --> src/main.rs:127:9
Dec 05 03:40:37.704 INFO [stderr]     |
Dec 05 03:40:37.704 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.704 INFO [stderr] ...
Dec 05 03:40:37.704 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 05 03:40:37.704 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.704 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:127:9
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:127:9
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:128:13
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:128:13
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |             ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:128:13
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:190:5
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:192:9
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.705 INFO [stderr] ...
Dec 05 03:40:37.705 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 05 03:40:37.705 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.705 INFO [stderr] 
Dec 05 03:40:37.705 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.705 INFO [stderr]    --> src/main.rs:230:5
Dec 05 03:40:37.705 INFO [stderr]     |
Dec 05 03:40:37.705 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:230:5
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:232:9
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:232:9
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:244:5
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:244:5
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:244:5
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 05 03:40:37.706 INFO [stderr] 
Dec 05 03:40:37.706 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.706 INFO [stderr]    --> src/main.rs:246:9
Dec 05 03:40:37.706 INFO [stderr]     |
Dec 05 03:40:37.706 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.706 INFO [stderr] ...
Dec 05 03:40:37.706 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 05 03:40:37.706 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.707 INFO [stderr] 
Dec 05 03:40:37.707 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.707 INFO [stderr]    --> src/main.rs:246:9
Dec 05 03:40:37.707 INFO [stderr]     |
Dec 05 03:40:37.707 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 05 03:40:37.707 INFO [stderr]     |         ---- first declared here
Dec 05 03:40:37.707 INFO [stderr] ...
Dec 05 03:40:37.707 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 05 03:40:37.707 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.707 INFO [stderr] 
Dec 05 03:40:37.707 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 05 03:40:37.707 INFO [stderr]    --> src/main.rs:246:9
Dec 05 03:40:37.707 INFO [stderr]     |
Dec 05 03:40:37.707 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 05 03:40:37.707 INFO [stderr]     |     ---- first declared here
Dec 05 03:40:37.707 INFO [stderr] ...
Dec 05 03:40:37.707 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 05 03:40:37.707 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 05 03:40:37.707 INFO [stderr] 
Dec 05 03:40:37.843 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 05 03:40:37.843 INFO [stderr]    --> src/main.rs:172:13
Dec 05 03:40:37.843 INFO [stderr]     |
Dec 05 03:40:37.843 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 05 03:40:37.843 INFO [stderr]     |             ^^^^^^^^^^
Dec 05 03:40:37.843 INFO [stderr]     |
Dec 05 03:40:37.843 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 05 03:40:37.843 INFO [stderr] 
Dec 05 03:40:37.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.875 INFO [stderr]    --> src/main.rs:186:13
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 05 03:40:37.875 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 03:40:37.875 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.875 INFO [stderr] 
Dec 05 03:40:37.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.875 INFO [stderr]    --> src/main.rs:200:13
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 05 03:40:37.875 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.875 INFO [stderr] 
Dec 05 03:40:37.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.875 INFO [stderr]    --> src/main.rs:213:9
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 05 03:40:37.875 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.875 INFO [stderr] 
Dec 05 03:40:37.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.875 INFO [stderr]    --> src/main.rs:225:9
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 05 03:40:37.875 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.875 INFO [stderr] 
Dec 05 03:40:37.875 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.875 INFO [stderr]    --> src/main.rs:240:13
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 05 03:40:37.875 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.875 INFO [stderr]     |
Dec 05 03:40:37.875 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.883 INFO [stderr] 
Dec 05 03:40:37.883 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.883 INFO [stderr]    --> src/main.rs:254:13
Dec 05 03:40:37.883 INFO [stderr]     |
Dec 05 03:40:37.883 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 05 03:40:37.883 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.883 INFO [stderr]     |
Dec 05 03:40:37.883 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.883 INFO [stderr] 
Dec 05 03:40:37.883 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.883 INFO [stderr]    --> src/main.rs:267:9
Dec 05 03:40:37.883 INFO [stderr]     |
Dec 05 03:40:37.883 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 05 03:40:37.883 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.883 INFO [stderr]     |
Dec 05 03:40:37.883 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.883 INFO [stderr] 
Dec 05 03:40:37.883 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:40:37.883 INFO [stderr]    --> src/main.rs:279:9
Dec 05 03:40:37.883 INFO [stderr]     |
Dec 05 03:40:37.883 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 05 03:40:37.883 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:40:37.883 INFO [stderr]     |
Dec 05 03:40:37.883 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:40:37.883 INFO [stderr] 
Dec 05 03:40:37.903 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
Dec 05 03:40:37.903 INFO [stderr] su: No module specific data is present
Dec 05 03:40:38.755 INFO running `"docker" "inspect" "cd7c4045c596875eb96b8796e9a29c5029c9d018b7f8686e46d2da15b06fac4a"`
Dec 05 03:40:39.166 INFO running `"docker" "rm" "-f" "cd7c4045c596875eb96b8796e9a29c5029c9d018b7f8686e46d2da15b06fac4a"`
Dec 05 03:40:39.606 INFO [stdout] cd7c4045c596875eb96b8796e9a29c5029c9d018b7f8686e46d2da15b06fac4a