[INFO] cloning repository https://github.com/ledgerluminary55/tic_tac_toe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ledgerluminary55/tic_tac_toe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fledgerluminary55%2Ftic_tac_toe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fledgerluminary55%2Ftic_tac_toe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e52b9be5b01b3b26346c955d2ab2b064ec3fc85a
[INFO] testing ledgerluminary55/tic_tac_toe against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fledgerluminary55%2Ftic_tac_toe" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ledgerluminary55/tic_tac_toe
[INFO] finished tweaking git repo https://github.com/ledgerluminary55/tic_tac_toe
[INFO] tweaked toml for git repo https://github.com/ledgerluminary55/tic_tac_toe written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ledgerluminary55/tic_tac_toe on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ledgerluminary55/tic_tac_toe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bea40934c5af5f2c326365dc56a4401d14a35aa264211bfbee7e3fdd974b51a7
[INFO] running `Command { std: "docker" "start" "-a" "bea40934c5af5f2c326365dc56a4401d14a35aa264211bfbee7e3fdd974b51a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bea40934c5af5f2c326365dc56a4401d14a35aa264211bfbee7e3fdd974b51a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bea40934c5af5f2c326365dc56a4401d14a35aa264211bfbee7e3fdd974b51a7", kill_on_drop: false }`
[INFO] [stdout] bea40934c5af5f2c326365dc56a4401d14a35aa264211bfbee7e3fdd974b51a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50f625f2cc94e62aea13db109d08bd0a6a802a0607127551c25e4a944ccbee7f
[INFO] running `Command { std: "docker" "start" "-a" "50f625f2cc94e62aea13db109d08bd0a6a802a0607127551c25e4a944ccbee7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tic_tac_toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]    --> src/main.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             board.winner == board.grid[0][2];
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let _ = board.winner == board.grid[0][2];
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "50f625f2cc94e62aea13db109d08bd0a6a802a0607127551c25e4a944ccbee7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f625f2cc94e62aea13db109d08bd0a6a802a0607127551c25e4a944ccbee7f", kill_on_drop: false }`
[INFO] [stdout] 50f625f2cc94e62aea13db109d08bd0a6a802a0607127551c25e4a944ccbee7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec218bd941eeec3d7a07d8df0aabb5bef9f361fe3a2b192d002de54e87e92d8e
[INFO] running `Command { std: "docker" "start" "-a" "ec218bd941eeec3d7a07d8df0aabb5bef9f361fe3a2b192d002de54e87e92d8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tic_tac_toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]    --> src/main.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             board.winner == board.grid[0][2];
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let _ = board.winner == board.grid[0][2];
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "ec218bd941eeec3d7a07d8df0aabb5bef9f361fe3a2b192d002de54e87e92d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec218bd941eeec3d7a07d8df0aabb5bef9f361fe3a2b192d002de54e87e92d8e", kill_on_drop: false }`
[INFO] [stdout] ec218bd941eeec3d7a07d8df0aabb5bef9f361fe3a2b192d002de54e87e92d8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21993310a18e3f3d20750a7f5e4f55958a5a860f5e13b13e1b066376bc80b7ba
[INFO] running `Command { std: "docker" "start" "-a" "21993310a18e3f3d20750a7f5e4f55958a5a860f5e13b13e1b066376bc80b7ba", kill_on_drop: false }`
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:110:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 110 |             board.winner == board.grid[0][2];
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 110 |             let _ = board.winner == board.grid[0][2];
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `tic_tac_toe` (bin "tic_tac_toe" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tic_tac_toe-9f2193dfd0889820)
[INFO] running `Command { std: "docker" "inspect" "21993310a18e3f3d20750a7f5e4f55958a5a860f5e13b13e1b066376bc80b7ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21993310a18e3f3d20750a7f5e4f55958a5a860f5e13b13e1b066376bc80b7ba", kill_on_drop: false }`
[INFO] [stdout] 21993310a18e3f3d20750a7f5e4f55958a5a860f5e13b13e1b066376bc80b7ba