[INFO] cloning repository https://github.com/fibre-ether/tictactoe-minimax-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fibre-ether/tictactoe-minimax-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffibre-ether%2Ftictactoe-minimax-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffibre-ether%2Ftictactoe-minimax-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd195d5a85bb5d7d256f65b76251d0194306ed2d
[INFO] checking fibre-ether/tictactoe-minimax-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffibre-ether%2Ftictactoe-minimax-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fibre-ether/tictactoe-minimax-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fibre-ether/tictactoe-minimax-rust
[INFO] finished tweaking git repo https://github.com/fibre-ether/tictactoe-minimax-rust
[INFO] tweaked toml for git repo https://github.com/fibre-ether/tictactoe-minimax-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fibre-ether/tictactoe-minimax-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-3-tc1/source/src/lib.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `lib` target `tictactoe`
[INFO] [stderr]   * `bin` target `lib`
[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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3649f4a0b40ebdb14bb69b7db62d6f702a582291a526b7ac8f12e33c81eeeaf1
[INFO] running `Command { std: "docker" "start" "-a" "3649f4a0b40ebdb14bb69b7db62d6f702a582291a526b7ac8f12e33c81eeeaf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3649f4a0b40ebdb14bb69b7db62d6f702a582291a526b7ac8f12e33c81eeeaf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3649f4a0b40ebdb14bb69b7db62d6f702a582291a526b7ac8f12e33c81eeeaf1", kill_on_drop: false }`
[INFO] [stdout] 3649f4a0b40ebdb14bb69b7db62d6f702a582291a526b7ac8f12e33c81eeeaf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3607e812c594bd70f70a8609a726c6bd5bcad3f11020c8841aa3de739f6aa49
[INFO] running `Command { std: "docker" "start" "-a" "e3607e812c594bd70f70a8609a726c6bd5bcad3f11020c8841aa3de739f6aa49", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/src/lib.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `lib` target `tictactoe`
[INFO] [stderr]   * `bin` target `lib`
[INFO] [stderr]    Compiling proc-macro2 v1.0.72
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.89
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.89
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.89
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.89
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.89
[INFO] [stderr]     Checking tictactoe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]   --> src/helpers/game.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[wasm_bindgen(method)]
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `user_input` is never used
[INFO] [stdout]   --> src/lib.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn user_input(move_var: &mut usize) -> Result<(), &'static str> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/lib.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retrieve_custom_board` is never used
[INFO] [stdout]   --> src/helpers/functions.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn retrieve_custom_board() -> Vec<BoardState> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retrieve_custom_board` is never used
[INFO] [stdout]   --> src/helpers/functions.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn retrieve_custom_board() -> Vec<BoardState> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retrieve_custom_board` is never used
[INFO] [stdout]   --> src/helpers/functions.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn retrieve_custom_board() -> Vec<BoardState> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retrieve_custom_board` is never used
[INFO] [stdout]   --> src/helpers/functions.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn retrieve_custom_board() -> Vec<BoardState> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.78s
[INFO] running `Command { std: "docker" "inspect" "e3607e812c594bd70f70a8609a726c6bd5bcad3f11020c8841aa3de739f6aa49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3607e812c594bd70f70a8609a726c6bd5bcad3f11020c8841aa3de739f6aa49", kill_on_drop: false }`
[INFO] [stdout] e3607e812c594bd70f70a8609a726c6bd5bcad3f11020c8841aa3de739f6aa49