[INFO] cloning repository https://github.com/randomairborne/ncc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/randomairborne/ncc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomairborne%2Fncc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomairborne%2Fncc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fff5a81d6090fc72208a99d3f0b8bcc72a63245
[INFO] checking randomairborne/ncc/2fff5a81d6090fc72208a99d3f0b8bcc72a63245 against master#ff086354c9fc93e1da1d2f4d255456624fbcd099 for pr-153513
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frandomairborne%2Fncc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/randomairborne/ncc
[INFO] finished tweaking git repo https://github.com/randomairborne/ncc
[INFO] tweaked toml for git repo https://github.com/randomairborne/ncc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/randomairborne/ncc on toolchain ff086354c9fc93e1da1d2f4d255456624fbcd099
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff086354c9fc93e1da1d2f4d255456624fbcd099" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/randomairborne/ncc 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" "+ff086354c9fc93e1da1d2f4d255456624fbcd099" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vss v0.1.0
[INFO] [stderr]   Downloaded owo-colors v4.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ff086354c9fc93e1da1d2f4d255456624fbcd099" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8aea6bb9c436e872c1afbbdc075f002216ba557d7f8ab85a64427865309d7ac9
[INFO] running `Command { std: "docker" "start" "-a" "8aea6bb9c436e872c1afbbdc075f002216ba557d7f8ab85a64427865309d7ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aea6bb9c436e872c1afbbdc075f002216ba557d7f8ab85a64427865309d7ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aea6bb9c436e872c1afbbdc075f002216ba557d7f8ab85a64427865309d7ac9", kill_on_drop: false }`
[INFO] [stdout] 8aea6bb9c436e872c1afbbdc075f002216ba557d7f8ab85a64427865309d7ac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ff086354c9fc93e1da1d2f4d255456624fbcd099" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3963ba14e08750c8b95ba954fff629471cb040e6356e6afef5b8894e3ddf438b
[INFO] running `Command { std: "docker" "start" "-a" "3963ba14e08750c8b95ba954fff629471cb040e6356e6afef5b8894e3ddf438b", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking owo-colors v4.0.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-recursion v1.0.5
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking vss v0.1.0
[INFO] [stderr]     Checking ncc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/turn.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn has_mate(&self, color: Color) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let board = Board::new();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `has_mate` is never used
[INFO] [stdout]   --> src/turn.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Board {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn has_mate(&self, color: Color) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/turn.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn has_mate(&self, color: Color) -> bool {
[INFO] [stdout]    |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let board = Board::new();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `has_mate` is never used
[INFO] [stdout]   --> src/turn.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Board {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn has_mate(&self, color: Color) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.76s
[INFO] running `Command { std: "docker" "inspect" "3963ba14e08750c8b95ba954fff629471cb040e6356e6afef5b8894e3ddf438b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3963ba14e08750c8b95ba954fff629471cb040e6356e6afef5b8894e3ddf438b", kill_on_drop: false }`
[INFO] [stdout] 3963ba14e08750c8b95ba954fff629471cb040e6356e6afef5b8894e3ddf438b