[INFO] cloning repository https://github.com/np425/rust_chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/np425/rust_chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnp425%2Frust_chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnp425%2Frust_chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9977cf78c444be87761e59f58ca4bd631d2c43e
[INFO] checking np425/rust_chess against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnp425%2Frust_chess" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/np425/rust_chess on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/np425/rust_chess
[INFO] finished tweaking git repo https://github.com/np425/rust_chess
[INFO] tweaked toml for git repo https://github.com/np425/rust_chess written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/np425/rust_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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fd33e6e23fdd29eef2ee31d12335f73d2e69fdb701eae28e29326b81216a80d
[INFO] running `Command { std: "docker" "start" "-a" "8fd33e6e23fdd29eef2ee31d12335f73d2e69fdb701eae28e29326b81216a80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fd33e6e23fdd29eef2ee31d12335f73d2e69fdb701eae28e29326b81216a80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd33e6e23fdd29eef2ee31d12335f73d2e69fdb701eae28e29326b81216a80d", kill_on_drop: false }`
[INFO] [stdout] 8fd33e6e23fdd29eef2ee31d12335f73d2e69fdb701eae28e29326b81216a80d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d46980671e5be5ab0ccaad92cd1225a4c33d7a9d5f794a1b1c28c24bb857d1d
[INFO] running `Command { std: "docker" "start" "-a" "9d46980671e5be5ab0ccaad92cd1225a4c33d7a9d5f794a1b1c28c24bb857d1d", kill_on_drop: false }`
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `origin_coord`
[INFO] [stdout]    --> src/position.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         origin_coord: Coord,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin_coord`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_coord`
[INFO] [stdout]    --> src/position.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         target_coord: Coord,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_coord`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin_coord`
[INFO] [stdout]    --> src/position.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         origin_coord: Coord,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin_coord`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_coord`
[INFO] [stdout]    --> src/position.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         target_coord: Coord,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_coord`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_play` is never read
[INFO] [stdout]    --> src/position.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub struct PositionBuilder {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 260 |     board: Board,
[INFO] [stdout] 261 |     to_play: Color,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PositionBuilder` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_shape` is never used
[INFO] [stdout]    --> src/position.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn move_shape(origin: (Square, Coord), target_coord: Coord) -> Option<MoveShape> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_move` is never used
[INFO] [stdout]    --> src/position.rs:383:4
[INFO] [stdout]     |
[INFO] [stdout] 383 | fn can_move(
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_play` is never read
[INFO] [stdout]    --> src/position.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub struct PositionBuilder {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 260 |     board: Board,
[INFO] [stdout] 261 |     to_play: Color,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PositionBuilder` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_shape` is never used
[INFO] [stdout]    --> src/position.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn move_shape(origin: (Square, Coord), target_coord: Coord) -> Option<MoveShape> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_move` is never used
[INFO] [stdout]    --> src/position.rs:383:4
[INFO] [stdout]     |
[INFO] [stdout] 383 | fn can_move(
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "9d46980671e5be5ab0ccaad92cd1225a4c33d7a9d5f794a1b1c28c24bb857d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d46980671e5be5ab0ccaad92cd1225a4c33d7a9d5f794a1b1c28c24bb857d1d", kill_on_drop: false }`
[INFO] [stdout] 9d46980671e5be5ab0ccaad92cd1225a4c33d7a9d5f794a1b1c28c24bb857d1d