[INFO] cloning repository https://github.com/yogaxpto/tic-tac-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yogaxpto/tic-tac-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogaxpto%2Ftic-tac-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogaxpto%2Ftic-tac-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a0af08953691369c7c37eb15370ba1d5f972d3e
[INFO] checking yogaxpto/tic-tac-rust against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogaxpto%2Ftic-tac-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yogaxpto/tic-tac-rust on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yogaxpto/tic-tac-rust
[INFO] finished tweaking git repo https://github.com/yogaxpto/tic-tac-rust
[INFO] tweaked toml for git repo https://github.com/yogaxpto/tic-tac-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/yogaxpto/tic-tac-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50252586f7764878c7958f0ac9b5d7faa27b1eb865d47c3eda5dd580fb6183e1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50252586f7764878c7958f0ac9b5d7faa27b1eb865d47c3eda5dd580fb6183e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50252586f7764878c7958f0ac9b5d7faa27b1eb865d47c3eda5dd580fb6183e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50252586f7764878c7958f0ac9b5d7faa27b1eb865d47c3eda5dd580fb6183e1", kill_on_drop: false }`
[INFO] [stdout] 50252586f7764878c7958f0ac9b5d7faa27b1eb865d47c3eda5dd580fb6183e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e99914810341845800444701abc1820b8874b11fb9226ee26719b8c104d5a99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4e99914810341845800444701abc1820b8874b11fb9226ee26719b8c104d5a99", kill_on_drop: false }`
[INFO] [stderr]     Checking tic-tac-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/common/coordinate.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut x: usize = BOARD_SIZE!();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/common/coordinate.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut y: usize = BOARD_SIZE!();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/common/node.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 x if child.is_full() => (),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/common/node.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 x if child.is_full() => (),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]    --> src/common/node.rs:133:19
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn max_ab(&self, max: i8, min: i8) -> Node {
[INFO] [stdout]     |                      ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]    --> src/common/node.rs:133:28
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn max_ab(&self, max: i8, min: i8) -> Node {
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_ab`
[INFO] [stdout]    --> src/common/node.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn max_ab(&self, max: i8, min: i8) -> Node {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/common/coordinate.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let mut x: usize = BOARD_SIZE!();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/common/coordinate.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut y: usize = BOARD_SIZE!();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/common/node.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 x if child.is_full() => (),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/common/node.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 x if child.is_full() => (),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]    --> src/common/node.rs:133:19
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn max_ab(&self, max: i8, min: i8) -> Node {
[INFO] [stdout]     |                      ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]    --> src/common/node.rs:133:28
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn max_ab(&self, max: i8, min: i8) -> Node {
[INFO] [stdout]     |                               ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max_ab`
[INFO] [stdout]    --> src/common/node.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn max_ab(&self, max: i8, min: i8) -> Node {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     io.lock().read_line(&mut stdin);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     io.lock().read_line(&mut stdin);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "4e99914810341845800444701abc1820b8874b11fb9226ee26719b8c104d5a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e99914810341845800444701abc1820b8874b11fb9226ee26719b8c104d5a99", kill_on_drop: false }`
[INFO] [stdout] 4e99914810341845800444701abc1820b8874b11fb9226ee26719b8c104d5a99