Dec 06 16:08:25.537 INFO testing AGausmann/tictactoe-rust against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 16:08:25.537 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 16:08:26.050 INFO [stdout] 4e1e85c8c8766758b4583a0027ac26620d96a6bc4b666b3bcf64f211033c29e0
Dec 06 16:08:26.053 INFO running `"docker" "start" "-a" "4e1e85c8c8766758b4583a0027ac26620d96a6bc4b666b3bcf64f211033c29e0"`
Dec 06 16:08:27.316 INFO [stderr] usermod: no changes
Dec 06 16:08:27.404 INFO [stderr]    Compiling tic_tac_toe v0.1.0 (/source)
Dec 06 16:08:27.840 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.841 INFO [stderr]   --> src/main.rs:93:9
Dec 06 16:08:27.841 INFO [stderr]    |
Dec 06 16:08:27.841 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 06 16:08:27.842 INFO [stderr]    |             ---- first declared here
Dec 06 16:08:27.842 INFO [stderr] ...
Dec 06 16:08:27.842 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 06 16:08:27.842 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.843 INFO [stderr] 
Dec 06 16:08:27.843 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.843 INFO [stderr]   --> src/main.rs:94:13
Dec 06 16:08:27.843 INFO [stderr]    |
Dec 06 16:08:27.844 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 06 16:08:27.844 INFO [stderr]    |         ---- first declared here
Dec 06 16:08:27.844 INFO [stderr] ...
Dec 06 16:08:27.844 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 06 16:08:27.844 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.845 INFO [stderr] 
Dec 06 16:08:27.845 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.845 INFO [stderr]    --> src/main.rs:118:9
Dec 06 16:08:27.846 INFO [stderr]     |
Dec 06 16:08:27.846 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 06 16:08:27.846 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.846 INFO [stderr] ...
Dec 06 16:08:27.847 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 06 16:08:27.847 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.847 INFO [stderr] 
Dec 06 16:08:27.847 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.848 INFO [stderr]    --> src/main.rs:118:9
Dec 06 16:08:27.848 INFO [stderr]     |
Dec 06 16:08:27.848 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 06 16:08:27.848 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:27.849 INFO [stderr] ...
Dec 06 16:08:27.849 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 06 16:08:27.849 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.849 INFO [stderr] 
Dec 06 16:08:27.849 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.850 INFO [stderr]    --> src/main.rs:119:13
Dec 06 16:08:27.850 INFO [stderr]     |
Dec 06 16:08:27.850 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 06 16:08:27.850 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:27.851 INFO [stderr] ...
Dec 06 16:08:27.851 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 06 16:08:27.851 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.851 INFO [stderr] 
Dec 06 16:08:27.852 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.852 INFO [stderr]    --> src/main.rs:119:13
Dec 06 16:08:27.852 INFO [stderr]     |
Dec 06 16:08:27.853 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 06 16:08:27.853 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.853 INFO [stderr] ...
Dec 06 16:08:27.853 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 06 16:08:27.853 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.854 INFO [stderr] 
Dec 06 16:08:27.854 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.854 INFO [stderr]    --> src/main.rs:127:9
Dec 06 16:08:27.854 INFO [stderr]     |
Dec 06 16:08:27.855 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 06 16:08:27.855 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:27.855 INFO [stderr] ...
Dec 06 16:08:27.855 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.856 INFO [stderr] 
Dec 06 16:08:27.856 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.856 INFO [stderr]    --> src/main.rs:127:9
Dec 06 16:08:27.856 INFO [stderr]     |
Dec 06 16:08:27.856 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.856 INFO [stderr] ...
Dec 06 16:08:27.856 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.856 INFO [stderr] 
Dec 06 16:08:27.856 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.856 INFO [stderr]    --> src/main.rs:127:9
Dec 06 16:08:27.856 INFO [stderr]     |
Dec 06 16:08:27.856 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:27.856 INFO [stderr] ...
Dec 06 16:08:27.856 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.856 INFO [stderr] 
Dec 06 16:08:27.856 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.856 INFO [stderr]    --> src/main.rs:128:13
Dec 06 16:08:27.856 INFO [stderr]     |
Dec 06 16:08:27.856 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.856 INFO [stderr] ...
Dec 06 16:08:27.856 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 06 16:08:27.856 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.856 INFO [stderr] 
Dec 06 16:08:27.856 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.856 INFO [stderr]    --> src/main.rs:128:13
Dec 06 16:08:27.857 INFO [stderr]     |
Dec 06 16:08:27.857 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 06 16:08:27.857 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:27.857 INFO [stderr] ...
Dec 06 16:08:27.857 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 06 16:08:27.857 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.857 INFO [stderr] 
Dec 06 16:08:27.857 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.857 INFO [stderr]    --> src/main.rs:128:13
Dec 06 16:08:27.857 INFO [stderr]     |
Dec 06 16:08:27.857 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 06 16:08:27.857 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.857 INFO [stderr] ...
Dec 06 16:08:27.857 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 06 16:08:27.857 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.857 INFO [stderr] 
Dec 06 16:08:27.857 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.857 INFO [stderr]    --> src/main.rs:190:5
Dec 06 16:08:27.857 INFO [stderr]     |
Dec 06 16:08:27.857 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 06 16:08:27.857 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.857 INFO [stderr] ...
Dec 06 16:08:27.857 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 06 16:08:27.857 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.857 INFO [stderr] 
Dec 06 16:08:27.857 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.858 INFO [stderr]    --> src/main.rs:192:9
Dec 06 16:08:27.858 INFO [stderr]     |
Dec 06 16:08:27.858 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 06 16:08:27.858 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:27.858 INFO [stderr] ...
Dec 06 16:08:27.858 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 06 16:08:27.858 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.858 INFO [stderr] 
Dec 06 16:08:27.858 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.858 INFO [stderr]    --> src/main.rs:230:5
Dec 06 16:08:27.858 INFO [stderr]     |
Dec 06 16:08:27.858 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 06 16:08:27.858 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:27.858 INFO [stderr] ...
Dec 06 16:08:27.858 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 06 16:08:27.858 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.858 INFO [stderr] 
Dec 06 16:08:27.858 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.858 INFO [stderr]    --> src/main.rs:230:5
Dec 06 16:08:27.858 INFO [stderr]     |
Dec 06 16:08:27.858 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 06 16:08:27.858 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.858 INFO [stderr] ...
Dec 06 16:08:27.858 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 06 16:08:27.858 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.858 INFO [stderr] 
Dec 06 16:08:27.858 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.858 INFO [stderr]    --> src/main.rs:232:9
Dec 06 16:08:27.858 INFO [stderr]     |
Dec 06 16:08:27.859 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.859 INFO [stderr] ...
Dec 06 16:08:27.859 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.859 INFO [stderr] 
Dec 06 16:08:27.859 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.859 INFO [stderr]    --> src/main.rs:232:9
Dec 06 16:08:27.859 INFO [stderr]     |
Dec 06 16:08:27.859 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:27.859 INFO [stderr] ...
Dec 06 16:08:27.859 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.859 INFO [stderr] 
Dec 06 16:08:27.859 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.859 INFO [stderr]    --> src/main.rs:244:5
Dec 06 16:08:27.859 INFO [stderr]     |
Dec 06 16:08:27.859 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.859 INFO [stderr] ...
Dec 06 16:08:27.859 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.859 INFO [stderr] 
Dec 06 16:08:27.859 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.859 INFO [stderr]    --> src/main.rs:244:5
Dec 06 16:08:27.859 INFO [stderr]     |
Dec 06 16:08:27.859 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 06 16:08:27.859 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:27.859 INFO [stderr] ...
Dec 06 16:08:27.860 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.860 INFO [stderr] 
Dec 06 16:08:27.860 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:27.860 INFO [stderr]    --> src/main.rs:244:5
Dec 06 16:08:27.860 INFO [stderr]     |
Dec 06 16:08:27.860 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.860 INFO [stderr] ...
Dec 06 16:08:27.860 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:27.860 INFO [stderr] 
Dec 06 16:08:27.860 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.860 INFO [stderr]    --> src/main.rs:246:9
Dec 06 16:08:27.860 INFO [stderr]     |
Dec 06 16:08:27.860 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:27.860 INFO [stderr] ...
Dec 06 16:08:27.860 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.860 INFO [stderr] 
Dec 06 16:08:27.860 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.860 INFO [stderr]    --> src/main.rs:246:9
Dec 06 16:08:27.860 INFO [stderr]     |
Dec 06 16:08:27.860 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:27.860 INFO [stderr] ...
Dec 06 16:08:27.860 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 06 16:08:27.860 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.860 INFO [stderr] 
Dec 06 16:08:27.861 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:27.861 INFO [stderr]    --> src/main.rs:246:9
Dec 06 16:08:27.861 INFO [stderr]     |
Dec 06 16:08:27.861 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 06 16:08:27.861 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:27.861 INFO [stderr] ...
Dec 06 16:08:27.861 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 06 16:08:27.861 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:27.861 INFO [stderr] 
Dec 06 16:08:27.946 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 06 16:08:27.946 INFO [stderr]    --> src/main.rs:172:13
Dec 06 16:08:27.946 INFO [stderr]     |
Dec 06 16:08:27.946 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 06 16:08:27.946 INFO [stderr]     |             ^^^^^^^^^^
Dec 06 16:08:27.947 INFO [stderr]     |
Dec 06 16:08:27.947 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 06 16:08:27.947 INFO [stderr] 
Dec 06 16:08:27.975 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.975 INFO [stderr]    --> src/main.rs:186:13
Dec 06 16:08:27.975 INFO [stderr]     |
Dec 06 16:08:27.975 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 06 16:08:27.975 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.975 INFO [stderr]     |
Dec 06 16:08:27.975 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 16:08:27.975 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.975 INFO [stderr] 
Dec 06 16:08:27.976 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.976 INFO [stderr]    --> src/main.rs:200:13
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 06 16:08:27.976 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.976 INFO [stderr] 
Dec 06 16:08:27.976 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.976 INFO [stderr]    --> src/main.rs:213:9
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 06 16:08:27.976 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.976 INFO [stderr] 
Dec 06 16:08:27.976 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.976 INFO [stderr]    --> src/main.rs:225:9
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 06 16:08:27.976 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.976 INFO [stderr] 
Dec 06 16:08:27.976 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.976 INFO [stderr]    --> src/main.rs:240:13
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 06 16:08:27.976 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.976 INFO [stderr] 
Dec 06 16:08:27.976 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.976 INFO [stderr]    --> src/main.rs:254:13
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 06 16:08:27.976 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.976 INFO [stderr]     |
Dec 06 16:08:27.976 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.976 INFO [stderr] 
Dec 06 16:08:27.976 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.977 INFO [stderr]    --> src/main.rs:267:9
Dec 06 16:08:27.977 INFO [stderr]     |
Dec 06 16:08:27.977 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 06 16:08:27.977 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.977 INFO [stderr]     |
Dec 06 16:08:27.977 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.977 INFO [stderr] 
Dec 06 16:08:27.977 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:27.977 INFO [stderr]    --> src/main.rs:279:9
Dec 06 16:08:27.977 INFO [stderr]     |
Dec 06 16:08:27.977 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 06 16:08:27.977 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:27.977 INFO [stderr]     |
Dec 06 16:08:27.977 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:27.977 INFO [stderr] 
Dec 06 16:08:28.489 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Dec 06 16:08:28.492 INFO [stderr] su: No module specific data is present
Dec 06 16:08:29.802 INFO running `"docker" "inspect" "4e1e85c8c8766758b4583a0027ac26620d96a6bc4b666b3bcf64f211033c29e0"`
Dec 06 16:08:29.898 INFO running `"docker" "rm" "-f" "4e1e85c8c8766758b4583a0027ac26620d96a6bc4b666b3bcf64f211033c29e0"`
Dec 06 16:08:30.022 INFO [stdout] 4e1e85c8c8766758b4583a0027ac26620d96a6bc4b666b3bcf64f211033c29e0
Dec 06 16:08:30.030 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 16:08:30.237 INFO [stdout] 55464b6730d7cf7a5227eed8c71dea51a623668d78a0d4c9e14044cf883d192c
Dec 06 16:08:30.242 INFO running `"docker" "start" "-a" "55464b6730d7cf7a5227eed8c71dea51a623668d78a0d4c9e14044cf883d192c"`
Dec 06 16:08:31.142 INFO [stderr] usermod: no changes
Dec 06 16:08:31.192 INFO [stderr]    Compiling tic_tac_toe v0.1.0 (/source)
Dec 06 16:08:31.672 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.672 INFO [stderr]   --> src/main.rs:93:9
Dec 06 16:08:31.672 INFO [stderr]    |
Dec 06 16:08:31.672 INFO [stderr] 85 |             'col: for j in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]    |             ---- first declared here
Dec 06 16:08:31.672 INFO [stderr] ...
Dec 06 16:08:31.672 INFO [stderr] 93 |         'col: for j in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]    |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.672 INFO [stderr] 
Dec 06 16:08:31.672 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.672 INFO [stderr]   --> src/main.rs:94:13
Dec 06 16:08:31.672 INFO [stderr]    |
Dec 06 16:08:31.672 INFO [stderr] 84 |         'row: for i in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]    |         ---- first declared here
Dec 06 16:08:31.672 INFO [stderr] ...
Dec 06 16:08:31.672 INFO [stderr] 94 |             'row: for i in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]    |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.672 INFO [stderr] 
Dec 06 16:08:31.672 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.672 INFO [stderr]    --> src/main.rs:118:9
Dec 06 16:08:31.672 INFO [stderr]     |
Dec 06 16:08:31.672 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.672 INFO [stderr] ...
Dec 06 16:08:31.672 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.672 INFO [stderr] 
Dec 06 16:08:31.672 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.672 INFO [stderr]    --> src/main.rs:118:9
Dec 06 16:08:31.672 INFO [stderr]     |
Dec 06 16:08:31.672 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:31.672 INFO [stderr] ...
Dec 06 16:08:31.672 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.672 INFO [stderr] 
Dec 06 16:08:31.672 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.672 INFO [stderr]    --> src/main.rs:119:13
Dec 06 16:08:31.672 INFO [stderr]     |
Dec 06 16:08:31.672 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 06 16:08:31.672 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:31.672 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:119:13
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:127:9
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 85  |             'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:127:9
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 93  |         'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:127:9
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 119 |             'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 127 |         'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:128:13
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 84  |         'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:128:13
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 94  |             'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:128:13
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 118 |         'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 128 |             'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |             ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:190:5
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:192:9
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:31.673 INFO [stderr] ...
Dec 06 16:08:31.673 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.673 INFO [stderr] 
Dec 06 16:08:31.673 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.673 INFO [stderr]    --> src/main.rs:230:5
Dec 06 16:08:31.673 INFO [stderr]     |
Dec 06 16:08:31.673 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 06 16:08:31.673 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:230:5
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:232:9
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:232:9
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:244:5
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 178 |         'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:244:5
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 190 |     'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'col` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:244:5
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 232 |         'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 244 |     'col: for j in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ^^^^ lifetime 'col already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:246:9
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 176 |     'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:246:9
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 192 |         'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.674 INFO [stderr] warning: label name `'row` shadows a label name that is already in scope
Dec 06 16:08:31.674 INFO [stderr]    --> src/main.rs:246:9
Dec 06 16:08:31.674 INFO [stderr]     |
Dec 06 16:08:31.674 INFO [stderr] 230 |     'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |     ---- first declared here
Dec 06 16:08:31.674 INFO [stderr] ...
Dec 06 16:08:31.674 INFO [stderr] 246 |         'row: for i in 0..3 {
Dec 06 16:08:31.674 INFO [stderr]     |         ^^^^ lifetime 'row already in scope
Dec 06 16:08:31.674 INFO [stderr] 
Dec 06 16:08:31.773 INFO [stderr] warning: value assigned to `cell_count` is never read
Dec 06 16:08:31.774 INFO [stderr]    --> src/main.rs:172:13
Dec 06 16:08:31.774 INFO [stderr]     |
Dec 06 16:08:31.774 INFO [stderr] 172 |     let mut cell_count = 0;
Dec 06 16:08:31.774 INFO [stderr]     |             ^^^^^^^^^^
Dec 06 16:08:31.774 INFO [stderr]     |
Dec 06 16:08:31.774 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 06 16:08:31.774 INFO [stderr] 
Dec 06 16:08:31.802 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.802 INFO [stderr]    --> src/main.rs:186:13
Dec 06 16:08:31.802 INFO [stderr]     |
Dec 06 16:08:31.802 INFO [stderr] 186 |             board.set_o(empty_cell);
Dec 06 16:08:31.802 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.802 INFO [stderr]     |
Dec 06 16:08:31.802 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 06 16:08:31.802 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.803 INFO [stderr] 
Dec 06 16:08:31.803 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.803 INFO [stderr]    --> src/main.rs:200:13
Dec 06 16:08:31.803 INFO [stderr]     |
Dec 06 16:08:31.803 INFO [stderr] 200 |             board.set_o(empty_cell);
Dec 06 16:08:31.803 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.803 INFO [stderr]     |
Dec 06 16:08:31.803 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.803 INFO [stderr] 
Dec 06 16:08:31.803 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.803 INFO [stderr]    --> src/main.rs:213:9
Dec 06 16:08:31.803 INFO [stderr]     |
Dec 06 16:08:31.803 INFO [stderr] 213 |         board.set_o(empty_cell);
Dec 06 16:08:31.803 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.803 INFO [stderr]     |
Dec 06 16:08:31.803 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.803 INFO [stderr] 
Dec 06 16:08:31.803 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.803 INFO [stderr]    --> src/main.rs:225:9
Dec 06 16:08:31.803 INFO [stderr]     |
Dec 06 16:08:31.803 INFO [stderr] 225 |         board.set_o(empty_cell);
Dec 06 16:08:31.803 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.803 INFO [stderr]     |
Dec 06 16:08:31.803 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.803 INFO [stderr] 
Dec 06 16:08:31.804 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.804 INFO [stderr]    --> src/main.rs:240:13
Dec 06 16:08:31.804 INFO [stderr]     |
Dec 06 16:08:31.804 INFO [stderr] 240 |             board.set_o(empty_cell);
Dec 06 16:08:31.804 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.804 INFO [stderr]     |
Dec 06 16:08:31.804 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.804 INFO [stderr] 
Dec 06 16:08:31.804 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.804 INFO [stderr]    --> src/main.rs:254:13
Dec 06 16:08:31.804 INFO [stderr]     |
Dec 06 16:08:31.804 INFO [stderr] 254 |             board.set_o(empty_cell);
Dec 06 16:08:31.804 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.804 INFO [stderr]     |
Dec 06 16:08:31.804 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.805 INFO [stderr] 
Dec 06 16:08:31.805 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.805 INFO [stderr]    --> src/main.rs:267:9
Dec 06 16:08:31.805 INFO [stderr]     |
Dec 06 16:08:31.805 INFO [stderr] 267 |         board.set_o(empty_cell);
Dec 06 16:08:31.805 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.805 INFO [stderr]     |
Dec 06 16:08:31.805 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.805 INFO [stderr] 
Dec 06 16:08:31.809 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 16:08:31.809 INFO [stderr]    --> src/main.rs:279:9
Dec 06 16:08:31.809 INFO [stderr]     |
Dec 06 16:08:31.809 INFO [stderr] 279 |         board.set_o(empty_cell);
Dec 06 16:08:31.809 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 16:08:31.809 INFO [stderr]     |
Dec 06 16:08:31.809 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 16:08:31.809 INFO [stderr] 
Dec 06 16:08:32.214 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
Dec 06 16:08:32.214 INFO [stderr] su: No module specific data is present
Dec 06 16:08:32.842 INFO running `"docker" "inspect" "55464b6730d7cf7a5227eed8c71dea51a623668d78a0d4c9e14044cf883d192c"`
Dec 06 16:08:33.074 INFO running `"docker" "rm" "-f" "55464b6730d7cf7a5227eed8c71dea51a623668d78a0d4c9e14044cf883d192c"`
Dec 06 16:08:33.268 INFO [stdout] 55464b6730d7cf7a5227eed8c71dea51a623668d78a0d4c9e14044cf883d192c
Dec 06 16:08:33.270 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 06 16:08:33.624 INFO [stdout] eac9d619882db41954300c03ad5483b2f3e925c8361889bc597c0b66e6f6849c
Dec 06 16:08:33.628 INFO running `"docker" "start" "-a" "eac9d619882db41954300c03ad5483b2f3e925c8361889bc597c0b66e6f6849c"`
Dec 06 16:08:34.824 INFO [stderr] usermod: no changes
Dec 06 16:08:34.860 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 16:08:34.864 INFO [stderr]      Running /target/debug/deps/tic_tac_toe-7612eda67a7f62fb
Dec 06 16:08:34.868 INFO [stdout] 
Dec 06 16:08:34.868 INFO [stdout] running 0 tests
Dec 06 16:08:34.868 INFO [stdout] 
Dec 06 16:08:34.868 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 16:08:34.868 INFO [stdout] 
Dec 06 16:08:34.872 INFO [stderr] su: No module specific data is present
Dec 06 16:08:35.413 INFO running `"docker" "inspect" "eac9d619882db41954300c03ad5483b2f3e925c8361889bc597c0b66e6f6849c"`
Dec 06 16:08:35.568 INFO running `"docker" "rm" "-f" "eac9d619882db41954300c03ad5483b2f3e925c8361889bc597c0b66e6f6849c"`
Dec 06 16:08:35.812 INFO [stdout] eac9d619882db41954300c03ad5483b2f3e925c8361889bc597c0b66e6f6849c