[INFO] cloning repository https://github.com/dpatularu/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dpatularu/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpatularu%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpatularu%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddc39f345e4dea29ffd1296941d1a8b21327dde2
[INFO] checking dpatularu/chess against master#2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpatularu%2Fchess" "/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/dpatularu/chess
[INFO] finished tweaking git repo https://github.com/dpatularu/chess
[INFO] tweaked toml for git repo https://github.com/dpatularu/chess written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dpatularu/chess on toolchain 2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dpatularu/chess 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" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcb81b7610ffd1d6145ef42af374fbda49addbe044a6fe2aba692f2c4b6dd589
[INFO] running `Command { std: "docker" "start" "-a" "dcb81b7610ffd1d6145ef42af374fbda49addbe044a6fe2aba692f2c4b6dd589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcb81b7610ffd1d6145ef42af374fbda49addbe044a6fe2aba692f2c4b6dd589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcb81b7610ffd1d6145ef42af374fbda49addbe044a6fe2aba692f2c4b6dd589", kill_on_drop: false }`
[INFO] [stdout] dcb81b7610ffd1d6145ef42af374fbda49addbe044a6fe2aba692f2c4b6dd589
[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=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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c52c59e39d1cd33378eb660459d9396817e977ad4ce8881e10bd9d2403dee28a
[INFO] running `Command { std: "docker" "start" "-a" "c52c59e39d1cd33378eb660459d9396817e977ad4ce8881e10bd9d2403dee28a", kill_on_drop: false }`
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `piece_kind`
[INFO] [stdout]   --> src/main.rs:12:49
[INFO] [stdout]    |
[INFO] [stdout] 12 |                     MoveError::InvalidPromotion(piece_kind) => {}
[INFO] [stdout]    |                                                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_piece_kind`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `UserMove`
[INFO] [stdout]   --> src/main.rs:14:44
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     MoveError::InvalidMove(UserMove) => {}
[INFO] [stdout]    |                                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_UserMove`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `winner`
[INFO] [stdout]   --> src/main.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |                     GameStatus::Checkmate(winner) => {}
[INFO] [stdout]    |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_winner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `winner`
[INFO] [stdout]   --> src/main.rs:24:31
[INFO] [stdout]    |
[INFO] [stdout] 24 |         GameStatus::Checkmate(winner) => {}
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_winner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `UserMove` should have a snake case name
[INFO] [stdout]   --> src/main.rs:14:44
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     MoveError::InvalidMove(UserMove) => {}
[INFO] [stdout]    |                                            ^^^^^^^^ help: convert the identifier to snake case: `user_move`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `piece_kind`
[INFO] [stdout]   --> src/main.rs:12:49
[INFO] [stdout]    |
[INFO] [stdout] 12 |                     MoveError::InvalidPromotion(piece_kind) => {}
[INFO] [stdout]    |                                                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_piece_kind`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `UserMove`
[INFO] [stdout]   --> src/main.rs:14:44
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     MoveError::InvalidMove(UserMove) => {}
[INFO] [stdout]    |                                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_UserMove`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `winner`
[INFO] [stdout]   --> src/main.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |                     GameStatus::Checkmate(winner) => {}
[INFO] [stdout]    |                                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_winner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `winner`
[INFO] [stdout]   --> src/main.rs:24:31
[INFO] [stdout]    |
[INFO] [stdout] 24 |         GameStatus::Checkmate(winner) => {}
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_winner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `UserMove` should have a snake case name
[INFO] [stdout]   --> src/main.rs:14:44
[INFO] [stdout]    |
[INFO] [stdout] 14 |                     MoveError::InvalidMove(UserMove) => {}
[INFO] [stdout]    |                                            ^^^^^^^^ help: convert the identifier to snake case: `user_move`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "c52c59e39d1cd33378eb660459d9396817e977ad4ce8881e10bd9d2403dee28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c52c59e39d1cd33378eb660459d9396817e977ad4ce8881e10bd9d2403dee28a", kill_on_drop: false }`
[INFO] [stdout] c52c59e39d1cd33378eb660459d9396817e977ad4ce8881e10bd9d2403dee28a