[INFO] updating cached repository https://github.com/dzil123/rust_tic_tac_toe
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc47d6c0e2de182fa50cd445867ba0f1d34634b4
[INFO] testing dzil123/rust_tic_tac_toe against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdzil123%2Frust_tic_tac_toe" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dzil123/rust_tic_tac_toe on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dzil123/rust_tic_tac_toe
[INFO] finished tweaking git repo https://github.com/dzil123/rust_tic_tac_toe
[INFO] tweaked toml for git repo https://github.com/dzil123/rust_tic_tac_toe written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/dzil123/rust_tic_tac_toe already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dcca2e72c20033676c26ab3cb733c2dbc091363ac726e22bfcbc72ccb06bad3d
[INFO] running `"docker" "start" "-a" "dcca2e72c20033676c26ab3cb733c2dbc091363ac726e22bfcbc72ccb06bad3d"`
[INFO] [stderr]    Compiling tic_tac_toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `X`
[INFO] [stderr]  --> src/board.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     X,
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]  --> src/board.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     O,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SetBoardResult`
[INFO] [stderr]   --> src/board.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub type SetBoardResult = std::result::Result<(), PositionTakenError>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]    --> src/board.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn set(&mut self, pos: Position, opponent: Opponent) -> SetBoardResult {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_board`
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn test_board() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "dcca2e72c20033676c26ab3cb733c2dbc091363ac726e22bfcbc72ccb06bad3d"`
[INFO] running `"docker" "rm" "-f" "dcca2e72c20033676c26ab3cb733c2dbc091363ac726e22bfcbc72ccb06bad3d"`
[INFO] [stdout] dcca2e72c20033676c26ab3cb733c2dbc091363ac726e22bfcbc72ccb06bad3d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f2d1ea57ca8db68b2946f1291681107045709f888c4a18cffa73e1f7338c0b6
[INFO] running `"docker" "start" "-a" "1f2d1ea57ca8db68b2946f1291681107045709f888c4a18cffa73e1f7338c0b6"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tic_tac_toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `X`
[INFO] [stderr]  --> src/board.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     X,
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]  --> src/board.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     O,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SetBoardResult`
[INFO] [stderr]   --> src/board.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub type SetBoardResult = std::result::Result<(), PositionTakenError>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]    --> src/board.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn set(&mut self, pos: Position, opponent: Opponent) -> SetBoardResult {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_board`
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn test_board() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "1f2d1ea57ca8db68b2946f1291681107045709f888c4a18cffa73e1f7338c0b6"`
[INFO] running `"docker" "rm" "-f" "1f2d1ea57ca8db68b2946f1291681107045709f888c4a18cffa73e1f7338c0b6"`
[INFO] [stdout] 1f2d1ea57ca8db68b2946f1291681107045709f888c4a18cffa73e1f7338c0b6
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c55289031a3bfa9607314bab3331150de031b9bc7698683bc2f14323aa243781
[INFO] running `"docker" "start" "-a" "c55289031a3bfa9607314bab3331150de031b9bc7698683bc2f14323aa243781"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `X`
[INFO] [stderr]  --> src/board.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     X,
[INFO] [stderr]   |     ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `O`
[INFO] [stderr]  --> src/board.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     O,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SetBoardResult`
[INFO] [stderr]   --> src/board.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub type SetBoardResult = std::result::Result<(), PositionTakenError>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]    --> src/board.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn set(&mut self, pos: Position, opponent: Opponent) -> SetBoardResult {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_board`
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn test_board() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tic_tac_toe-2932666b064d8abe
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c55289031a3bfa9607314bab3331150de031b9bc7698683bc2f14323aa243781"`
[INFO] running `"docker" "rm" "-f" "c55289031a3bfa9607314bab3331150de031b9bc7698683bc2f14323aa243781"`
[INFO] [stdout] c55289031a3bfa9607314bab3331150de031b9bc7698683bc2f14323aa243781