[INFO] cloning repository https://github.com/WhySyntax/TicTacToe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WhySyntax/TicTacToe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhySyntax%2FTicTacToe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhySyntax%2FTicTacToe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42ffcc0012358a814e120655afa43bbeb1619d57
[INFO] checking WhySyntax/TicTacToe against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWhySyntax%2FTicTacToe" "/workspace/builds/worker-105/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WhySyntax/TicTacToe on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WhySyntax/TicTacToe
[INFO] finished tweaking git repo https://github.com/WhySyntax/TicTacToe
[INFO] tweaked toml for git repo https://github.com/WhySyntax/TicTacToe written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate git repo https://github.com/WhySyntax/TicTacToe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 633a2dc634400b2214a21907d668aadced8cd68d736f338868f378f0ac3d03e7
[INFO] running `Command { std: "docker" "start" "-a" "633a2dc634400b2214a21907d668aadced8cd68d736f338868f378f0ac3d03e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "633a2dc634400b2214a21907d668aadced8cd68d736f338868f378f0ac3d03e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633a2dc634400b2214a21907d668aadced8cd68d736f338868f378f0ac3d03e7", kill_on_drop: false }`
[INFO] [stdout] 633a2dc634400b2214a21907d668aadced8cd68d736f338868f378f0ac3d03e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97f9aac56ea0175ebe843eb4547572b4dc972bf8fca6824725042e8f1e9f1d9e
[INFO] running `Command { std: "docker" "start" "-a" "97f9aac56ea0175ebe843eb4547572b4dc972bf8fca6824725042e8f1e9f1d9e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking functions v0.1.0 (https://github.com/WhySyntax/functions#5e864e07)
[INFO] [stderr]     Checking TicTacToe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut this_turn = turn();
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let mut this_turn = turn();
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut this_turn = turn();
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let mut this_turn = turn();
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `TicTacToe` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `tic_tac_toe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `gameArray` should have a snake case name
[INFO] [stdout]  --> src/main.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn check_if_win_or_draw(gameArray:[[&str;4];4]) -> bool {
[INFO] [stdout]   |                         ^^^^^^^^^ help: convert the identifier to snake case: `game_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut this_turn = turn();
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let mut this_turn = turn();
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut this_turn = turn();
[INFO] [stdout]    |             ----^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let mut this_turn = turn();
[INFO] [stdout]    |                 ----^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `TicTacToe` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `tic_tac_toe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `gameArray` should have a snake case name
[INFO] [stdout]  --> src/main.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn check_if_win_or_draw(gameArray:[[&str;4];4]) -> bool {
[INFO] [stdout]   |                         ^^^^^^^^^ help: convert the identifier to snake case: `game_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "97f9aac56ea0175ebe843eb4547572b4dc972bf8fca6824725042e8f1e9f1d9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f9aac56ea0175ebe843eb4547572b4dc972bf8fca6824725042e8f1e9f1d9e", kill_on_drop: false }`
[INFO] [stdout] 97f9aac56ea0175ebe843eb4547572b4dc972bf8fca6824725042e8f1e9f1d9e