Dec 02 09:51:08.728 INFO testing AGausmann/tictactoe-rust against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 09:51:08.729 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 09:51:09.524 INFO [stdout] 7d63c142b93dbe2b9563128b08962021ee325470fdfbe372309a38788175341e
Dec 02 09:51:09.527 INFO running `"docker" "start" "-a" "7d63c142b93dbe2b9563128b08962021ee325470fdfbe372309a38788175341e"`
Dec 02 09:51:10.712 INFO [stderr] usermod: no changes
Dec 02 09:51:10.795 INFO [stderr]    Compiling tic_tac_toe v0.1.0 (/source)
Dec 02 09:51:11.396 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.396 INFO [stderr]   --> src/main.rs:93:9
Dec 02 09:51:11.396 INFO [stderr]    |
Dec 02 09:51:11.396 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 02 09:51:11.396 INFO [stderr]    |             ---- first declared here
Dec 02 09:51:11.396 INFO [stderr] ...
Dec 02 09:51:11.396 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 02 09:51:11.396 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.396 INFO [stderr] 
Dec 02 09:51:11.396 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.396 INFO [stderr]   --> src/main.rs:94:13
Dec 02 09:51:11.396 INFO [stderr]    |
Dec 02 09:51:11.396 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 02 09:51:11.396 INFO [stderr]    |         ---- first declared here
Dec 02 09:51:11.396 INFO [stderr] ...
Dec 02 09:51:11.396 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 02 09:51:11.396 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.396 INFO [stderr] 
Dec 02 09:51:11.396 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.396 INFO [stderr]    --> src/main.rs:118:9
Dec 02 09:51:11.396 INFO [stderr]     |
Dec 02 09:51:11.396 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 02 09:51:11.396 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.396 INFO [stderr] ...
Dec 02 09:51:11.396 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:118:9
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:119:13
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:119:13
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:127:9
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:127:9
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:127:9
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:128:13
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:128:13
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:128:13
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.397 INFO [stderr] ...
Dec 02 09:51:11.397 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 02 09:51:11.397 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.397 INFO [stderr] 
Dec 02 09:51:11.397 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.397 INFO [stderr]    --> src/main.rs:190:5
Dec 02 09:51:11.397 INFO [stderr]     |
Dec 02 09:51:11.397 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:192:9
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:230:5
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:230:5
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:232:9
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:232:9
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:244:5
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:244:5
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:244:5
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:246:9
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.398 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:11.398 INFO [stderr] ...
Dec 02 09:51:11.398 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 02 09:51:11.398 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.398 INFO [stderr] 
Dec 02 09:51:11.398 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.398 INFO [stderr]    --> src/main.rs:246:9
Dec 02 09:51:11.398 INFO [stderr]     |
Dec 02 09:51:11.399 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 02 09:51:11.399 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:11.399 INFO [stderr] ...
Dec 02 09:51:11.399 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 02 09:51:11.399 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.399 INFO [stderr] 
Dec 02 09:51:11.399 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:11.399 INFO [stderr]    --> src/main.rs:246:9
Dec 02 09:51:11.399 INFO [stderr]     |
Dec 02 09:51:11.399 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 02 09:51:11.399 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:11.399 INFO [stderr] ...
Dec 02 09:51:11.399 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 02 09:51:11.399 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:11.399 INFO [stderr] 
Dec 02 09:51:11.515 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 02 09:51:11.515 INFO [stderr]    --> src/main.rs:172:13
Dec 02 09:51:11.515 INFO [stderr]     |
Dec 02 09:51:11.515 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 02 09:51:11.515 INFO [stderr]     |             ^^^^^^^^^^
Dec 02 09:51:11.515 INFO [stderr]     |
Dec 02 09:51:11.515 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 02 09:51:11.515 INFO [stderr] 
Dec 02 09:51:11.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.547 INFO [stderr]    --> src/main.rs:186:13
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 02 09:51:11.547 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 02 09:51:11.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.547 INFO [stderr] 
Dec 02 09:51:11.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.547 INFO [stderr]    --> src/main.rs:200:13
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 02 09:51:11.547 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.547 INFO [stderr] 
Dec 02 09:51:11.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.547 INFO [stderr]    --> src/main.rs:213:9
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 02 09:51:11.547 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.547 INFO [stderr] 
Dec 02 09:51:11.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.547 INFO [stderr]    --> src/main.rs:225:9
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 02 09:51:11.547 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.547 INFO [stderr] 
Dec 02 09:51:11.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.547 INFO [stderr]    --> src/main.rs:240:13
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 02 09:51:11.547 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.547 INFO [stderr] 
Dec 02 09:51:11.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.547 INFO [stderr]    --> src/main.rs:254:13
Dec 02 09:51:11.547 INFO [stderr]     |
Dec 02 09:51:11.547 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 02 09:51:11.548 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.548 INFO [stderr]     |
Dec 02 09:51:11.548 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.548 INFO [stderr] 
Dec 02 09:51:11.548 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.548 INFO [stderr]    --> src/main.rs:267:9
Dec 02 09:51:11.548 INFO [stderr]     |
Dec 02 09:51:11.548 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 02 09:51:11.548 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.548 INFO [stderr]     |
Dec 02 09:51:11.548 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.548 INFO [stderr] 
Dec 02 09:51:11.548 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:11.548 INFO [stderr]    --> src/main.rs:279:9
Dec 02 09:51:11.548 INFO [stderr]     |
Dec 02 09:51:11.548 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 02 09:51:11.548 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:11.548 INFO [stderr]     |
Dec 02 09:51:11.548 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:11.548 INFO [stderr] 
Dec 02 09:51:12.212 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 02 09:51:12.214 INFO [stderr] su: No module specific data is present
Dec 02 09:51:12.845 INFO running `"docker" "inspect" "7d63c142b93dbe2b9563128b08962021ee325470fdfbe372309a38788175341e"`
Dec 02 09:51:13.171 INFO running `"docker" "rm" "-f" "7d63c142b93dbe2b9563128b08962021ee325470fdfbe372309a38788175341e"`
Dec 02 09:51:13.531 INFO [stdout] 7d63c142b93dbe2b9563128b08962021ee325470fdfbe372309a38788175341e
Dec 02 09:51:13.533 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 09:51:14.085 INFO [stdout] 16ba6281a5b23d7e83c31b28db1cf4f2e0addbdf97b7d60b09ba2866c834e08b
Dec 02 09:51:14.087 INFO running `"docker" "start" "-a" "16ba6281a5b23d7e83c31b28db1cf4f2e0addbdf97b7d60b09ba2866c834e08b"`
Dec 02 09:51:15.910 INFO [stderr] usermod: no changes
Dec 02 09:51:15.970 INFO [stderr]    Compiling tic_tac_toe v0.1.0 (/source)
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]   --> src/main.rs:93:9
Dec 02 09:51:16.699 INFO [stderr]    |
Dec 02 09:51:16.699 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]    |             ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]   --> src/main.rs:94:13
Dec 02 09:51:16.699 INFO [stderr]    |
Dec 02 09:51:16.699 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]    |         ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]    --> src/main.rs:118:9
Dec 02 09:51:16.699 INFO [stderr]     |
Dec 02 09:51:16.699 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]    --> src/main.rs:118:9
Dec 02 09:51:16.699 INFO [stderr]     |
Dec 02 09:51:16.699 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]    --> src/main.rs:119:13
Dec 02 09:51:16.699 INFO [stderr]     |
Dec 02 09:51:16.699 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]    --> src/main.rs:119:13
Dec 02 09:51:16.699 INFO [stderr]     |
Dec 02 09:51:16.699 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.699 INFO [stderr]    --> src/main.rs:127:9
Dec 02 09:51:16.699 INFO [stderr]     |
Dec 02 09:51:16.699 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:16.699 INFO [stderr] ...
Dec 02 09:51:16.699 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 02 09:51:16.699 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.699 INFO [stderr] 
Dec 02 09:51:16.699 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:127:9
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:127:9
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:128:13
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:128:13
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |             ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:128:13
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:190:5
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:192:9
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:230:5
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:230:5
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.700 INFO [stderr]    --> src/main.rs:232:9
Dec 02 09:51:16.700 INFO [stderr]     |
Dec 02 09:51:16.700 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.700 INFO [stderr] ...
Dec 02 09:51:16.700 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 02 09:51:16.700 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.700 INFO [stderr] 
Dec 02 09:51:16.700 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:232:9
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.701 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:244:5
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.701 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:244:5
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.701 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:244:5
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.701 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:246:9
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.701 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:246:9
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.701 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 02 09:51:16.701 INFO [stderr]    --> src/main.rs:246:9
Dec 02 09:51:16.701 INFO [stderr]     |
Dec 02 09:51:16.701 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |     ---- first declared here
Dec 02 09:51:16.701 INFO [stderr] ...
Dec 02 09:51:16.701 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 02 09:51:16.701 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 02 09:51:16.701 INFO [stderr] 
Dec 02 09:51:16.823 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 02 09:51:16.823 INFO [stderr]    --> src/main.rs:172:13
Dec 02 09:51:16.823 INFO [stderr]     |
Dec 02 09:51:16.823 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 02 09:51:16.823 INFO [stderr]     |             ^^^^^^^^^^
Dec 02 09:51:16.823 INFO [stderr]     |
Dec 02 09:51:16.823 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 02 09:51:16.823 INFO [stderr] 
Dec 02 09:51:16.855 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.855 INFO [stderr]    --> src/main.rs:186:13
Dec 02 09:51:16.855 INFO [stderr]     |
Dec 02 09:51:16.855 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 02 09:51:16.855 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.855 INFO [stderr]     |
Dec 02 09:51:16.855 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 02 09:51:16.855 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.855 INFO [stderr] 
Dec 02 09:51:16.855 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.855 INFO [stderr]    --> src/main.rs:200:13
Dec 02 09:51:16.855 INFO [stderr]     |
Dec 02 09:51:16.855 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:16.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.859 INFO [stderr]    --> src/main.rs:213:9
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:16.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.859 INFO [stderr]    --> src/main.rs:225:9
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:16.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.859 INFO [stderr]    --> src/main.rs:240:13
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:16.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.859 INFO [stderr]    --> src/main.rs:254:13
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:16.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.859 INFO [stderr]    --> src/main.rs:267:9
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:16.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 09:51:16.859 INFO [stderr]    --> src/main.rs:279:9
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 02 09:51:16.859 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:51:16.859 INFO [stderr]     |
Dec 02 09:51:16.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 09:51:16.859 INFO [stderr] 
Dec 02 09:51:17.387 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Dec 02 09:51:17.390 INFO [stderr] su: No module specific data is present
Dec 02 09:51:18.283 INFO running `"docker" "inspect" "16ba6281a5b23d7e83c31b28db1cf4f2e0addbdf97b7d60b09ba2866c834e08b"`
Dec 02 09:51:18.617 INFO running `"docker" "rm" "-f" "16ba6281a5b23d7e83c31b28db1cf4f2e0addbdf97b7d60b09ba2866c834e08b"`
Dec 02 09:51:18.870 INFO [stdout] 16ba6281a5b23d7e83c31b28db1cf4f2e0addbdf97b7d60b09ba2866c834e08b
Dec 02 09:51:18.877 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 09:51:19.243 INFO [stdout] 73d75785ed086a381f50576030edff1dba875244ab193ec3c5037a4b926351a2
Dec 02 09:51:19.251 INFO running `"docker" "start" "-a" "73d75785ed086a381f50576030edff1dba875244ab193ec3c5037a4b926351a2"`
Dec 02 09:51:20.832 INFO [stderr] usermod: no changes
Dec 02 09:51:20.883 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 02 09:51:20.883 INFO [stderr]      Running /target/debug/deps/tic_tac_toe-633f1988bece2c1a
Dec 02 09:51:20.884 INFO [stdout] 
Dec 02 09:51:20.884 INFO [stdout] running 0 tests
Dec 02 09:51:20.884 INFO [stdout] 
Dec 02 09:51:20.884 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 09:51:20.884 INFO [stdout] 
Dec 02 09:51:20.889 INFO [stderr] su: No module specific data is present
Dec 02 09:51:21.456 INFO running `"docker" "inspect" "73d75785ed086a381f50576030edff1dba875244ab193ec3c5037a4b926351a2"`
Dec 02 09:51:21.733 INFO running `"docker" "rm" "-f" "73d75785ed086a381f50576030edff1dba875244ab193ec3c5037a4b926351a2"`
Dec 02 09:51:21.964 INFO [stdout] 73d75785ed086a381f50576030edff1dba875244ab193ec3c5037a4b926351a2
