[INFO] cloning repository https://github.com/kiemonbb/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/kiemonbb/rust-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkiemonbb%2Frust-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkiemonbb%2Frust-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78fb6ca883b8a377d3cb8be79db851ac446a097e
[INFO] checking kiemonbb/rust-chess against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkiemonbb%2Frust-chess" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kiemonbb/rust-chess on toolchain d2eadb7a94ef8c9deb5137695df33cd1fc5aee92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kiemonbb/rust-chess
[INFO] finished tweaking git repo https://github.com/kiemonbb/rust-chess
[INFO] tweaked toml for git repo https://github.com/kiemonbb/rust-chess written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kiemonbb/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" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75a2bb630d4242ff524a83f7ae9fe4779a3245d83d343c4faf0a6a8daba7bf1d
[INFO] running `Command { std: "docker" "start" "-a" "75a2bb630d4242ff524a83f7ae9fe4779a3245d83d343c4faf0a6a8daba7bf1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75a2bb630d4242ff524a83f7ae9fe4779a3245d83d343c4faf0a6a8daba7bf1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a2bb630d4242ff524a83f7ae9fe4779a3245d83d343c4faf0a6a8daba7bf1d", kill_on_drop: false }`
[INFO] [stdout] 75a2bb630d4242ff524a83f7ae9fe4779a3245d83d343c4faf0a6a8daba7bf1d
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20e2a7a90254c4a3a4288957381bf474b358d6ceb24ddc4e86561bd46426732d
[INFO] running `Command { std: "docker" "start" "-a" "20e2a7a90254c4a3a4288957381bf474b358d6ceb24ddc4e86561bd46426732d", kill_on_drop: false }`
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/board.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Board {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_index` is never used
[INFO] [stdout]   --> src/board.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 28 |     fn get_index(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `set`, `set_bit`, and `clear_bit` are never used
[INFO] [stdout]   --> src/board.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get(&self, piece: Piece) -> u64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn set(&mut self, piece: Piece, bitboard: u64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn set_bit(&mut self, piece: Piece, square: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn clear_bit(&mut self, piece: Piece, square: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/board.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Board {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_index` is never used
[INFO] [stdout]   --> src/board.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Piece {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 28 |     fn get_index(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `set`, `set_bit`, and `clear_bit` are never used
[INFO] [stdout]   --> src/board.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn get(&self, piece: Piece) -> u64 {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn set(&mut self, piece: Piece, bitboard: u64) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn set_bit(&mut self, piece: Piece, square: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn clear_bit(&mut self, piece: Piece, square: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "20e2a7a90254c4a3a4288957381bf474b358d6ceb24ddc4e86561bd46426732d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20e2a7a90254c4a3a4288957381bf474b358d6ceb24ddc4e86561bd46426732d", kill_on_drop: false }`
[INFO] [stdout] 20e2a7a90254c4a3a4288957381bf474b358d6ceb24ddc4e86561bd46426732d