[INFO] cloning repository https://github.com/ImJustTrying/autochessboard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ImJustTrying/autochessboard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImJustTrying%2Fautochessboard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImJustTrying%2Fautochessboard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fb6176ff1850bd31ef43b1c847188065cd428e7
[INFO] checking ImJustTrying/autochessboard against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImJustTrying%2Fautochessboard" "/workspace/builds/worker-37/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-37/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ImJustTrying/autochessboard on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ImJustTrying/autochessboard
[INFO] finished tweaking git repo https://github.com/ImJustTrying/autochessboard
[INFO] tweaked toml for git repo https://github.com/ImJustTrying/autochessboard written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] crate git repo https://github.com/ImJustTrying/autochessboard already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74660d966929006e5f05a5a20961e4ae3f5b4d0975e25321e07c2590c6d45d04
[INFO] running `Command { std: "docker" "start" "-a" "74660d966929006e5f05a5a20961e4ae3f5b4d0975e25321e07c2590c6d45d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74660d966929006e5f05a5a20961e4ae3f5b4d0975e25321e07c2590c6d45d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74660d966929006e5f05a5a20961e4ae3f5b4d0975e25321e07c2590c6d45d04", kill_on_drop: false }`
[INFO] [stdout] 74660d966929006e5f05a5a20961e4ae3f5b4d0975e25321e07c2590c6d45d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32dbda05c8e27c7d835da0c6cd8da82a3af5ae7e55068413518a1456cb3d705c
[INFO] running `Command { std: "docker" "start" "-a" "32dbda05c8e27c7d835da0c6cd8da82a3af5ae7e55068413518a1456cb3d705c", kill_on_drop: false }`
[INFO] [stderr]     Checking auto_chessboard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `is_white`
[INFO] [stdout]    --> src/chess.rs:288:38
[INFO] [stdout]     |
[INFO] [stdout] 288 |                         Piece::King {is_white} => {
[INFO] [stdout]     |                                      ^^^^^^^^ help: try ignoring the field: `is_white: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_in_check`
[INFO] [stdout]   --> src/chess.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn is_in_check(&self) -> (bool, bool) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_white`
[INFO] [stdout]    --> src/chess.rs:288:38
[INFO] [stdout]     |
[INFO] [stdout] 288 |                         Piece::King {is_white} => {
[INFO] [stdout]     |                                      ^^^^^^^^ help: try ignoring the field: `is_white: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_in_check`
[INFO] [stdout]   --> src/chess.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn is_in_check(&self) -> (bool, bool) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "32dbda05c8e27c7d835da0c6cd8da82a3af5ae7e55068413518a1456cb3d705c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32dbda05c8e27c7d835da0c6cd8da82a3af5ae7e55068413518a1456cb3d705c", kill_on_drop: false }`
[INFO] [stdout] 32dbda05c8e27c7d835da0c6cd8da82a3af5ae7e55068413518a1456cb3d705c